Censys Internet Scanning Intro

What Does Censys Scan?

Censys continually scans the public IPv4 address space on 3,552+ ports using automatic protocol detection to present the most accurate representation of the Internet's current state.

Censys scans only obtain information: Censys never attempts to log into any service, read any database, or otherwise gain authenticated access to any system.

How Often Does Censys Scan For New Services?

Discovery means finding a service on an IP/port that was not there last time we looked. Censys has several schedules for discovery based on our knowledge of the Internet:

1. Global Scan of Popular Ports. We scan the whole IPv4 space on 137 ports with IANA-assigned services every day. 
2. Global Scan of Less Popular Ports. We scan the whole IPv4 space on 3,415 additional ports on a regular basis, completing a walk every 10 days.
3. Cloud Provider Scans. Since many cloud hosts are ephemeral, we scan the 1,440 most popular ports on Amazon, Google, and Azure hosts every day.

How Often Does Censys Refresh Data for Known Services?

Once a service has been discovered, Censys prioritizes refreshing the information about that service to ensure it is accurate and up to date.

Once a day, the age of each known service (over 1 Billion) is checked. Any service with an observation time stamp older than 24 hours is rescanned. With this process, the average age of high-value service data is about 16 hours!

How Does Censys Scan?

Censys leverages a combination of global perspectives and sophisticated scanning techniques to produce the richest, most useful data set for the security community.

Deep Protocol Scans

On ports with IANA-assigned protocols, Censys attempts to complete a handshake with the assigned protocol (e.g., Telnet on TCP/23). If that fails, we try additional handshakes according to our experience with protocol and port pairings. On ports without an assigned service, we start by sending an HTTP request and attempt to automatically detect the protocol based on the response.

Automatic Protocol Detection

The Censys scanner analyzes every server response to identify its service, even if it's non-standard for the port, which allows us to uncover the vast majority of services in unexpected places.

For example, if an HTTP request results in an SSH banner, Censys will close the HTTP connection and reattempt an SSH handshake.

Censys can detect the following 20 protocols on any port:

AMQP
ELASTICSEARCH
FTP
HTTP
IMAP
IPP
KUBERNETES
MODBUS
MONGODB
MYSQL
POP3
PPTP
PROMETHEUS
RDP
REDIS
SIP
SMTP
SSH
TELNET
VNC

You can also see the full list of Services Censys Finds and Ports Censys Scans.

Lightweight Protocol Scans

Some protocols do not have a lot of data to parse and index.

Censys identifies the following lightweight services and collects its banner:

ANDROMOUSE
ARD
ATG
BEANSTALKD
BITTORRENT
BOLT
CASSANDRA
CHARGEN
CITRIX
CODESYS
DB2
DIGI
GE_SRTP
ICAP
IDENT
IEC60870_5_104
IRC
LDAP
MDNS
MIKROTIK_BW
MURMUR
NATPMP
NETBIOS
NETIS
PCWORX
PIGEONHOLE
PJL
POPPASSD
PORTMAP
PRO_CON_OS
QOTD
RDP_UDP
RETHINKDB
RIPV1
RSYNC
RTSP
SENTINEL
SSDP
TEAMSPEAK
TERRARIA
TFTP
TORCONTROL
UBIQUITI
UPNP
VALVE
WDBRPC
WS_DISCOVERY
XDMCP

What Protocols (Services) Does Censys Find?

Censys can find 105 Layer 7 protocols. The default Layer 4 protocol is TCP, although some protocols, such as DNS, are scanned with UDP, and HTTP can now be detected on QUIC.

In addition, we perform several HTTP(S) handshakes to identify specific HTTP applications (e.g., Kubernetes and Elasticsearch). Service names represent the most specific information we have.

For example, a generic HTTP service has a service name of HTTP, while an HTTP service that’s actually an Elasticsearch server has a service name of ELASTICSEARCH.

HTTP + HTTPS

On ports running HTTP(S), we request the root (/) page and follow local HTTP redirects. In addition, we perform follow-up requests to identify the following applications:

• CWMP
• Elasticsearch
• Kubernetes
• Prometheus

Databases 

We check for the following popular database servers. We never attempt to authenticate against databases or read any user databases.

• Bolt
• Cassandra
• Elasticsearch
• Memcached
• MongoDB
• Microsoft SQL Server (MSSQL)
• MySQL
• Oracle
• PostgreSQL
• Redis
• RethinkDB
• IBM DB2
• Zookeeper

Core Internet Protocols

• DNS Open Resolvers
• Multicast DNS (MDNS)
• ECHO
• IPP
• ICAP
• NETBIOS
• NTP
• PORTMAP
• NATPMP
• RIPV1

Internet of Things Protocols

On ports running message broker protocols, we complete an initial protocol-specific handshake, with no attempt to authenticate. For (MQTT) services not requiring authentication that are broadcasting messages, we may collect a sample of these messages.

• AMQP(S)
• COAP(S)
• MQTT(S)
• BEANSTALKD
• IKETTLE
• KAFKA
• NETIS
• PJL
• Ubiquity Discovery Protocol (UBIQUITI)
• SSDP
• UPNP
• Web Services Dynamic Discovery (WS_DISCOVERY)
• XMPP

Remote Access Protocols

We check for the following remote access protocols.

• Andromouse
• OpenVPN 
• PC Anywhere
• RDP
• RDP_UDP
• SSH
• Telnet
• VNC
• X11
• XDMCP
• Apple Remote Desktop (ARD)
• TEAM_VIEWER

Mail Protocols

On ports running common mail protocols, banner data is collected and a STARTTLS handshake is completed if the server indicates support.

• IMAP(S)
• PIGEONHOLE
• POP3(S)
• SMTP(S)

VoIP Protocols

On ports running common VoIP protocols, banner data is collected and a STARTTLS handshake is completed if the server indicates support.

• SIP(S)
• SKINNY
• MURMUR
• TEAMSPEAK

Network Administration Protocols

On ports running network administration protocols, we complete an initial protocol-specific handshake, with no attempt to authenticate.

• IPMI
• Kerberos
• LDAP
• POPPASSED
• PPTP
• RADIUS
• SCCM
• SNMP
• Sentinel License Manager (SENTINEL)
• TORCONTROL

File-Sharing Protocols

On ports running file-sharing protocols, we complete an initial protocol-specific handshake, with no attempt to authenticate.

• BITTORRENT
• BITTORRENT_TRACKER
• FTP(S)
• RSYNC
• SMB
• TFTP

Industrial Control (SCADA) Protocols

On ports running industrial control protocols, we complete an initial protocol-specific handshake, with no attempt to authenticate.

• Automated Tank Gauges (ATG)
• BACnet
• DNP3
• EIP
• FINS
• HART
• Tridium Fox
• MODBUS
• Siemens S7
• CODESYS
• Digi Realport (DIGI)
• Service Request Transport Protocol (GE_SRTP)
• Citrix ICA Protocol (CITRIX)
• PCWORX
• IEC_60870_5_104
• ProConOS (PRO_CON_OS)
• VxWorks WDB Debug Agent (WDBRPC)

Game Protocols

• RTSP
• Source Engine Server (VALVE)
• Terraria Server (TERRARIA)

Miscellaneous Protocols

• BITCOIN
• CHARGEN
• DICT
• IDENT
• IRC
• Quote of the Day (QOTD)
• STATSD

Ports Scanned

Censys scans the following ports. HTTP redirects may result in scans of ports not listed here.

2	17	19	21	22	23
25	26	51	53	65	66
69	80	81	82	83	84
85	86	88	89	90	91
92	93	94	95	96	97
98	99	100	101	102	106
110	111	119	123	137	139
143	161	177	179	189	190
192	199	222	234	243	264
285	314	343	347	385	389
389	400	440	441	442	443
444	445	446	447	448	449
451	452	453	461	462	465
480	485	487	488	491	500
502	515	520	523	541	554
555	556	587	591	602	623
631	632	636	666	685	689
700	743	772	777	782	785
800	801	805	806	808	809
830	831	832	833	843	853
873	880	885	886	887	888
902	943	947	953	990	992
993	995	998	999	1000	1002
1013	1022	1024	1025	1026	1027
1028	1050	1080	1103	1111	1167
1180	1181	1188	1190	1193	1194
1194	1195	1198	1207	1234	1235
1250	1283	1291	1292	1293	1311
1337	1343	1344	1355	1364	1365
1366	1370	1377	1387	1388	1433
1443	1444	1446	1447	1450	1451
1452	1453	1454	1455	1456	1457
1458	1459	1460	1494	1500	1521
1554	1557	1577	1604	1605	1660
1700	1883	1900	1900	1911	1935
1950	1951	1952	1953	1954	1955
1956	1957	1958	1959	1960	1964
1965	1966	1967	1968	1969	1970
1971	1972	1973	1974	1975	1976
1977	1978	1979	1980	1981	1982
1983	1984	1985	1986	1987	1988
1989	2000	2001	2002	2006	2012
2016	2020	2021	2022	2030	2031
2048	2049	2050	2051	2052	2053
2054	2055	2056	2057	2058	2059
2060	2061	2062	2063	2064	2065
2066	2067	2068	2069	2070	2072
2077	2078	2079	2080	2082	2083
2085	2086	2087	2090	2091	2095
2096	2100	2101	2103	2107	2108
2109	2111	2121	2122	2123	2126
2130	2133	2134	2156	2195	2196
2200	2201	2209	2210	2211	2222
2223	2224	2226	2233	2248	2271
2323	2327	2344	2345	2353	2362
2363	2382	2423	2433	2435	2443
2444	2453	2480	2525	2548	2549
2550	2551	2552	2553	2554	2555
2556	2557	2558	2559	2560	2561
2562	2563	2566	2567	2568	2569
2570	2572	2598	2599	2601	2850
2985	2995	3000	3001	3002	3003
3004	3005	3006	3007	3008	3009
3010	3011	3012	3013	3014	3015
3016	3017	3018	3019	3020	3021
3022	3030	3042	3047	3048	3049
3050	3051	3052	3053	3054	3055
3056	3057	3058	3059	3060	3061
3062	3063	3064	3065	3066	3067
3068	3069	3070	3071	3072	3073
3074	3075	3076	3077	3078	3079
3080	3081	3082	3083	3084	3085
3086	3087	3088	3089	3090	3091
3092	3093	3094	3095	3096	3097
3098	3099	3100	3101	3102	3103
3104	3105	3106	3107	3108	3109
3110	3111	3112	3113	3114	3115
3116	3117	3118	3119	3120	3121
3122	3123	3124	3125	3126	3127
3128	3129	3130	3131	3132	3133
3134	3135	3136	3137	3138	3139
3140	3141	3142	3143	3144	3145
3146	3147	3148	3149	3150	3151
3152	3153	3154	3155	3156	3157
3158	3159	3160	3161	3162	3163
3164	3165	3166	3167	3168	3169
3170	3171	3172	3173	3174	3175
3176	3177	3178	3179	3180	3181
3182	3183	3184	3185	3186	3187
3188	3189	3190	3191	3192	3193
3194	3195	3196	3197	3198	3199
3200	3270	3283	3299	3306	3307
3333	3337	3341	3342	3345	3349
3365	3389	3389	3390	3391	3400
3401	3402	3403	3404	3405	3406
3407	3408	3409	3410	3412	3443
3479	3500	3510	3521	3522	3523
3524	3530	3531	3540	3548	3549
3550	3551	3552	3553	3554	3555
3556	3557	3558	3559	3560	3561
3562	3563	3566	3567	3568	3569
3570	3572	3580	3590	3622	3690
3702	3790	3791	3792	3793	3794
3838	3841	3842	3950	3951	3952
3953	3954	4000	4001	4002	4010
4021	4022	4023	4040	4043	4072
4080	4085	4095	4100	4101	4103
4104	4117	4118	4120	4147	4148
4150	4155	4159	4160	4165	4172
4190	4243	4244	4250	4300	4333
4343	4344	4400	4401	4402	4430
4431	4432	4433	4434	4435	4436
4437	4438	4439	4440	4443	4444
4445	4447	4449	4451	4455	4457
4459	4461	4463	4466	4477	4482
4488	4499	4500	4502	4505	4510
4520	4524	4528	4530	4531	4543
4567	4572	4602	4620	4643	4700
4821	4848	4933	4993	5000	5001
5002	5003	5004	5005	5006	5007
5008	5009	5010	5011	5022	5050
5051	5053	5060	5060	5061	5061
5080	5083	5089	5090	5093	5100
5105	5119	5120	5123	5130	5135
5140	5150	5160	5180	5201	5222
5223	5224	5225	5226	5227	5228
5229	5230	5231	5232	5233	5234
5235	5236	5237	5238	5239	5240
5241	5242	5243	5244	5245	5246
5247	5248	5249	5250	5251	5252
5253	5254	5255	5256	5257	5258
5259	5260	5261	5262	5263	5264
5265	5266	5267	5268	5269	5270
5271	5272	5273	5274	5275	5276
5277	5278	5279	5280	5351	5353
5357	5400	5431	5432	5433	5439
5440	5443	5444	5446	5456	5494
5495	5500	5503	5523	5543	5544
5552	5555	5556	5557	5558	5567
5568	5569	5590	5591	5592	5593
5594	5595	5596	5597	5598	5599
5600	5601	5602	5603	5604	5605
5606	5607	5608	5609	5613	5614
5620	5630	5632	5640	5650	5660
5671	5672	5673	5678	5680	5683
5683	5684	5696	5698	5701	5721
5800	5804	5900	5901	5902	5903
5904	5905	5906	5907	5908	5909
5910	5911	5912	5913	5914	5915
5916	5917	5918	5919	5920	5938
5984	5985	5986	5987	5988	5989
5990	5991	5992	5993	5994	5995
5996	5997	5998	5999	6000	6001
6002	6003	6004	6005	6006	6007
6008	6009	6010	6011	6020	6021
6022	6036	6050	6060	6061	6070
6080	6081	6100	6102	6134	6161
6264	6331	6348	6352	6363	6379
6380	6400	6405	6433	6440	6443
6482	6488	6500	6503	6505	6510
6511	6512	6513	6514	6543	6544
6556	6560	6561	6565	6580	6581
6588	6590	6601	6603	6605	6661
6662	6666	6686	6688	6699	6700
6755	6775	6779	6789	6799	6969
7000	7001	7002	7003	7004	7005
7006	7007	7010	7011	7012	7013
7014	7015	7016	7018	7020	7021
7022	7025	7050	7057	7070	7071
7078	7079	7080	7081	7082	7083
7084	7085	7086	7087	7088	7090
7100	7102	7105	7170	7171	7172
7173	7272	7283	7302	7325	7331
7348	7349	7373	7401	7403	7433
7441	7443	7444	7445	7473	7480
7500	7510	7537	7547	7548	7601
7603	7654	7676	7687	7700	7771
7773	7774	7775	7776	7777	7778
7779	7780	7782	7788	7790	7799
7801	7822	7878	7900	7946	7979
7980	7998	7999	8000	8001	8002
8003	8004	8005	8006	8007	8008
8009	8010	8011	8012	8013	8014
8015	8016	8017	8018	8019	8020
8021	8022	8023	8024	8025	8026
8027	8028	8029	8030	8031	8032
8033	8034	8035	8036	8037	8038
8039	8040	8041	8042	8043	8044
8045	8046	8047	8048	8049	8050
8051	8052	8053	8054	8055	8056
8057	8058	8059	8060	8061	8062
8063	8064	8065	8066	8067	8068
8069	8070	8071	8072	8073	8074
8075	8076	8077	8078	8079	8080
8081	8082	8083	8084	8085	8086
8087	8088	8089	8090	8091	8092
8093	8094	8095	8096	8097	8098
8099	8100	8101	8102	8103	8104
8105	8106	8107	8108	8109	8110
8111	8112	8113	8114	8115	8116
8117	8118	8119	8120	8121	8122
8123	8124	8125	8126	8127	8128
8129	8130	8131	8132	8133	8134
8135	8136	8137	8138	8139	8140
8141	8142	8143	8144	8145	8146
8147	8148	8149	8150	8151	8152
8153	8154	8155	8156	8157	8158
8159	8160	8161	8162	8163	8164
8165	8166	8167	8168	8169	8170
8171	8172	8173	8174	8175	8176
8177	8178	8179	8180	8181	8182
8183	8184	8185	8186	8187	8188
8189	8190	8191	8192	8193	8194
8195	8196	8197	8198	8199	8200
8203	8222	8230	8236	8237	8238
8239	8241	8243	8248	8249	8250
8251	8252	8280	8282	8283	8284
8285	8300	8315	8316	8317	8318
8319	8322	8333	8340	8343	8350
8381	8382	8383	8384	8385	8388
8393	8401	8402	8403	8404	8405
8406	8407	8408	8409	8410	8411
8412	8413	8414	8415	8416	8417
8418	8419	8420	8421	8422	8423
8424	8425	8426	8427	8428	8429
8430	8431	8432	8433	8434	8435
8436	8440	8441	8442	8443	8444
8445	8446	8447	8448	8449	8450
8451	8452	8453	8454	8455	8456
8457	8458	8459	8460	8461	8462
8463	8464	8465	8466	8467	8470
8472	8473	8475	8480	8481	8482
8484	8485	8488	8493	8494	8500
8501	8502	8503	8504	8505	8506
8510	8513	8514	8515	8519	8520
8521	8523	8524	8525	8526	8528
8529	8530	8531	8532	8533	8536
8540	8543	8544	8548	8549	8550
8551	8553	8554	8556	8557	8558
8560	8561	8562	8563	8564	8565
8566	8567	8568	8569	8570	8571
8573	8574	8575	8576	8577	8578
8579	8580	8581	8582	8583	8584
8585	8586	8587	8588	8589	8590
8591	8592	8593	8594	8595	8596
8597	8598	8599	8600	8601	8602
8605	8606	8607	8621	8630	8640
8641	8643	8663	8666	8680	8686
8688	8700	8701	8702	8703	8704
8705	8706	8707	8708	8709	8723
8724	8731	8732	8743	8745	8764
8765	8766	8767	8771	8787	8788
8789	8790	8791	8800	8801	8802
8803	8804	8805	8806	8807	8808
8809	8810	8811	8812	8813	8814
8815	8816	8817	8818	8819	8820
8821	8822	8823	8824	8825	8826
8827	8828	8829	8830	8831	8832
8833	8834	8835	8836	8837	8838
8839	8840	8841	8842	8843	8844
8845	8846	8847	8848	8849	8850
8851	8852	8853	8854	8855	8856
8857	8858	8859	8860	8861	8862
8863	8864	8865	8866	8867	8868
8869	8870	8871	8872	8873	8874
8875	8876	8877	8878	8879	8880
8881	8882	8883	8884	8885	8886
8887	8888	8889	8890	8891	8899
8900	8901	8902	8905	8906	8907
8908	8910	8911	8912	8913	8915
8916	8935	8943	8969	8980	8988
8989	8990	8991	8999	9000	9001
9002	9003	9004	9005	9006	9007
9008	9009	9010	9011	9012	9013
9014	9015	9016	9017	9018	9019
9020	9021	9022	9023	9024	9025
9026	9027	9028	9029	9030	9031
9032	9033	9034	9035	9036	9037
9038	9039	9040	9041	9042	9043
9044	9045	9046	9047	9048	9049
9050	9051	9052	9053	9054	9055
9056	9057	9058	9059	9060	9061
9062	9063	9064	9065	9066	9067
9068	9069	9070	9071	9072	9073
9074	9075	9076	9077	9078	9079
9080	9081	9082	9083	9084	9085
9086	9087	9088	9089	9090	9091
9092	9093	9094	9095	9096	9097
9098	9099	9100	9101	9102	9103
9104	9105	9106	9107	9108	9109
9110	9111	9112	9113	9114	9115
9116	9117	9118	9119	9120	9121
9122	9123	9124	9125	9126	9127
9128	9129	9130	9131	9132	9133
9134	9135	9136	9137	9138	9139
9140	9141	9142	9143	9144	9145
9146	9147	9148	9149	9150	9151
9152	9153	9154	9155	9156	9157
9158	9159	9160	9161	9162	9163
9164	9165	9166	9167	9168	9169
9170	9171	9172	9173	9174	9175
9176	9177	9178	9179	9180	9181
9182	9183	9184	9185	9186	9187
9188	9189	9190	9191	9192	9193
9194	9195	9196	9197	9198	9199
9200	9201	9202	9203	9204	9205
9206	9207	9208	9209	9210	9211
9212	9213	9214	9215	9216	9217
9218	9219	9220	9221	9222	9223
9226	9230	9236	9241	9242	9243
9244	9245	9246	9247	9248	9249
9250	9251	9252	9253	9256	9257
9273	9280	9283	9289	9291	9292
9295	9299	9300	9301	9302	9303
9304	9305	9306	9307	9308	9309
9310	9311	9312	9313	9315	9345
9350	9351	9353	9376	9383	9387
9389	9393	9399	9400	9410	9433
9441	9443	9444	9445	9446	9447
9454	9455	9456	9458	9465	9480
9488	9500	9501	9505	9507	9510
9513	9515	9527	9529	9530	9532
9550	9553	9595	9600	9611	9658
9663	9674	9682	9690	9696	9700
9704	9710	9711	9734	9743	9754
9758	9765	9773	9779	9797	9800
9802	9803	9804	9810	9811	9861
9872	9876	9885	9888	9898	9899
9900	9901	9902	9908	9909	9916
9918	9919	9922	9923	9926	9928
9929	9930	9939	9943	9944	9950
9955	9966	9977	9988	9990	9991
9992	9993	9994	9997	9998	9999
10000	10001	10001	10002	10003	10004
10005	10006	10007	10008	10009	10010
10011	10012	10013	10014	10015	10016
10017	10018	10019	10020	10021	10022
10023	10024	10025	10026	10027	10028
10029	10030	10031	10032	10033	10034
10035	10036	10037	10038	10039	10040
10041	10042	10043	10044	10045	10046
10047	10048	10049	10050	10051	10052
10065	10066	10068	10071	10075	10080
10081	10082	10083	10084	10086	10087
10089	10090	10093	10100	10101	10106
10123	10180	10181	10200	10201	10205
10209	10210	10225	10240	10243	10249
10250	10251	10254	10255	10256	10283
10302	10324	10348	10380	10390	10393
10397	10398	10399	10443	10444	10445
10477	10480	10533	10554	10810	10892
10894	10933	10934	10935	10936	10943
11000	11001	11002	11007	11027	11065
11075	11082	11084	11101	11110	11111
11180	11182	11184	11211	11401	11443
11480	11481	11596	11601	11602	11680
11681	11688	11701	11920	12000	12001
12016	12019	12056	12082	12084	12088
12101	12103	12104	12105	12106	12107
12108	12109	12110	12111	12112	12113
12114	12115	12116	12117	12118	12119
12120	12121	12122	12123	12124	12125
12126	12127	12128	12129	12130	12131
12132	12133	12134	12135	12136	12137
12138	12139	12140	12141	12142	12143
12144	12145	12146	12147	12148	12149
12150	12151	12152	12153	12154	12155
12156	12157	12158	12159	12160	12161
12162	12163	12164	12165	12166	12167
12168	12169	12170	12171	12172	12173
12174	12175	12176	12177	12178	12179
12180	12181	12182	12183	12184	12185
12186	12187	12188	12189	12190	12191
12192	12193	12194	12195	12196	12197
12198	12199	12200	12201	12202	12203
12204	12205	12206	12207	12208	12209
12210	12211	12212	12213	12214	12215
12216	12217	12218	12219	12220	12221
12222	12223	12224	12225	12226	12227
12228	12229	12230	12231	12232	12233
12234	12235	12236	12237	12238	12239
12240	12241	12242	12243	12244	12245
12246	12247	12248	12249	12250	12251
12252	12253	12254	12255	12256	12257
12258	12259	12260	12261	12262	12263
12264	12265	12266	12267	12268	12269
12270	12271	12272	12273	12274	12275
12276	12277	12278	12279	12280	12281
12282	12283	12284	12285	12286	12287
12288	12289	12290	12291	12292	12293
12294	12295	12296	12297	12298	12299
12300	12301	12302	12303	12304	12305
12306	12307	12308	12309	12310	12311
12312	12313	12314	12315	12316	12317
12318	12319	12320	12321	12322	12323
12324	12325	12326	12327	12328	12329
12330	12331	12332	12333	12334	12335
12336	12337	12338	12339	12340	12341
12342	12343	12344	12345	12346	12347
12348	12349	12350	12351	12352	12353
12354	12355	12356	12357	12358	12359
12360	12361	12362	12363	12364	12365
12366	12367	12368	12369	12370	12371
12372	12373	12374	12375	12376	12377
12378	12379	12380	12381	12382	12383
12384	12385	12386	12387	12388	12389
12390	12391	12392	12393	12394	12395
12396	12397	12398	12399	12400	12401
12402	12403	12404	12405	12406	12407
12408	12409	12410	12411	12412	12413
12414	12415	12416	12417	12418	12419
12420	12421	12422	12423	12424	12425
12426	12427	12428	12429	12430	12431
12432	12433	12434	12435	12436	12437
12438	12439	12440	12441	12442	12443
12444	12445	12446	12447	12448	12449
12450	12451	12452	12453	12454	12455
12456	12457	12458	12459	12460	12461
12462	12463	12464	12465	12466	12467
12468	12469	12470	12471	12472	12473
12474	12475	12476	12477	12478	12479
12480	12481	12482	12483	12484	12485
12486	12487	12488	12489	12490	12491
12492	12493	12494	12495	12496	12497
12498	12499	12500	12501	12502	12503
12504	12505	12506	12507	12508	12509
12510	12511	12512	12513	12514	12515
12516	12517	12518	12519	12520	12521
12522	12523	12524	12525	12526	12527
12528	12529	12530	12531	12532	12533
12534	12535	12536	12537	12538	12539
12540	12541	12542	12543	12544	12545
12546	12547	12548	12549	12550	12551
12552	12553	12554	12555	12556	12557
12558	12559	12560	12561	12562	12563
12564	12565	12566	12567	12568	12569
12570	12571	12572	12573	12574	12575
12576	12577	12578	12579	12580	12581
12582	12583	12584	12585	12586	12587
12588	12589	12590	12601	12615	12902
12980	13000	13001	13082	13084	13128
13228	13333	13380	13443	13780	14006
14024	14026	14082	14084	14101	14104
14130	14182	14184	14330	14400	14401
14402	14403	14404	14406	14407	14443
14523	14524	14825	14873	14875	14880
14894	14895	14896	14897	14900	14901
14903	14905	14909	15000	15001	15002
15006	15018	15038	15040	15042	15044
15082	15084	15123	15151	15502	15503
15504	15555	15588	15672	15673	15831
16000	16001	16002	16003	16004	16005
16006	16007	16008	16009	16010	16011
16012	16013	16014	16015	16016	16017
16018	16019	16020	16021	16022	16023
16024	16025	16026	16027	16028	16029
16030	16031	16032	16033	16034	16035
16036	16037	16038	16039	16040	16041
16042	16043	16044	16045	16046	16047
16048	16049	16050	16051	16052	16053
16054	16055	16056	16057	16058	16059
16060	16061	16062	16063	16064	16065
16066	16067	16068	16069	16070	16071
16072	16073	16074	16075	16076	16077
16078	16079	16080	16081	16082	16083
16084	16085	16086	16087	16088	16089
16090	16091	16092	16093	16094	16095
16096	16097	16098	16099	16100	16101
16102	16103	16104	16311	16316	16400
16401	16402	16403	16404	16443	16601
16666	16667	16800	16831	16888	16992
16993	17000	17001	17010	17020	17070
17082	17084	17100	17102	17182	17184
17185	17443	17770	17771	17772	17773
17774	17775	17776	17777	17778	17779
17780	18000	18001	18002	18003	18004
18005	18006	18007	18008	18009	18010
18011	18012	18013	18014	18015	18016
18017	18018	18019	18020	18021	18022
18023	18024	18025	18026	18027	18028
18029	18030	18031	18032	18033	18034
18035	18036	18037	18038	18039	18040
18041	18042	18043	18044	18045	18046
18047	18048	18049	18050	18051	18052
18053	18054	18055	18056	18057	18058
18059	18060	18061	18062	18063	18064
18065	18066	18067	18068	18069	18070
18071	18072	18073	18074	18075	18076
18077	18078	18079	18080	18081	18082
18083	18084	18085	18086	18087	18088
18089	18090	18091	18092	18093	18094
18095	18096	18097	18098	18099	18100
18101	18102	18103	18104	18105	18106
18107	18108	18109	18110	18111	18112
18113	18181	18182	18200	18225	18239
18264	18368	18443	18556	18765	18802
18888	19013	19014	19015	19016	19017
19022	19080	19082	19084	19090	19091
19100	19222	19233	19443	19776	19902
19998	19999	20000	20001	20002	20010
20018	20020	20030	20040	20050	20053
20060	20070	20080	20082	20084	20090
20100	20106	20107	20110	20121	20150
20151	20182	20184	20185	20200	20201
20202	20208	20325	20440	20443	20500
20512	20600	20800	20892	20894	20900
21001	21002	21081	21082	21083	21084
21100	21200	21230	21231	21232	21233
21234	21235	21236	21237	21238	21239
21240	21241	21242	21243	21244	21245
21246	21247	21248	21249	21250	21251
21252	21253	21254	21255	21256	21257
21258	21259	21260	21261	21262	21263
21264	21265	21266	21267	21268	21269
21270	21271	21272	21273	21274	21275
21276	21277	21278	21279	21280	21281
21282	21283	21284	21285	21286	21287
21288	21289	21290	21291	21292	21293
21294	21295	21296	21297	21298	21299
21300	21301	21302	21303	21304	21305
21306	21307	21308	21309	21310	21311
21312	21313	21314	21315	21316	21317
21318	21319	21320	21321	21322	21323
21324	21325	21326	21327	21328	21329
21330	21357	21381	21400	21443	21500
21515	21935	22000	22022	22082	22084
22103	22107	22206	22222	22345	22380
22403	22609	22703	22705	23082	23084
23128	23182	23184	24082	24084	24181
24442	24472	24510	24808	25000	25001
25002	25003	25004	25005	25006	25007
25008	25009	25010	25082	25084	25782
25952	27015	27017	27105	27571	28001
28080	28443	28818	29798	29799	29840
29842	29984	30000	30001	30002	30003
30004	30005	30006	30007	30008	30009
30010	30011	30013	30015	30017	30019
30021	30023	30025	30027	30029	30050
30083	30101	30104	30106	30110	30111
30112	30113	30120	30121	30122	30123
30443	30444	30452	30468	30473	30479
30501	30700	30701	30892	30894	31001
31017	31210	31337	31380	31443	31444
32001	32080	32101	32102	32202	32303
32400	32443	32444	32746	32800	33060
33389	34225	34500	35002	35004	35100
35101	35153	35240	35241	35250	35251
35522	35524	35531	35554	35559	35560
36501	36505	36982	36983	36984	37080
37443	38080	38520	38880	39001	40000
40001	40005	40029	40070	40099	40471
40892	40894	42208	42235	42420	42424
42443	42901	43008	43009	43080	43200
43221	44021	44100	44300	44301	44302
44303	44304	44305	44306	44307	44308
44309	44310	44320	44332	44333	44334
44336	44337	44340	44341	44345	44350
44365	44399	44400	44410	44420	44444
44500	44510	44520	45000	45001	45002
45003	45005	45006	45039	45111	45333
45444	45555	45666	45667	45668	45677
45777	45786	45788	45821	45886	45888
46000	46001	46443	46862	47000	47001
47080	47534	47808	47984	47989	48000
48001	48002	48012	48013	48018	48019
48020	48100	48888	48889	49080	49121
49152	49153	49200	49210	49443	49501
49502	49592	49682	49684	49686	49688
49690	49692	49694	49767	50000	50001
50002	50003	50004	50005	50006	50007
50008	50009	50010	50011	50012	50013
50014	50022	50042	50050	50073	50080
50085	50100	50101	50102	50103	50104
50105	50106	50107	50112	50113	50122
50160	50202	50257	50443	50500	50580
50777	50805	50995	50996	50997	50998
50999	51000	51001	51002	51003	51004
51005	51007	51200	51201	51294	51434
52010	52200	52230	52311	52536	52869
52881	52931	52951	53200	53400	53413
53480	53481	53482	53483	53484	53485
53490	53805	53806	54022	54321	54327
54490	54545	54857	55055	55080	55081
55200	55350	55388	55470	55475	55481
55490	55554	55555	57778	57779	57780
57781	57782	57783	57784	57785	57786
57787	57788	58000	58378	58392	58443
58532	58585	58603	59012	59443	60000
60001	60021	60023	60099	60443	61234
61617	61619	62016	62080	62237	62443
62865	63045	63443	63676	64477	64671
64683	64738	65000	65004	65432	65527