Summary

ASN	AS2856 British Telecommunications PLC
BGP	31.121.0.0/16
IPs with RDNS	56
Hosted Domains	0
Pingable IPs	113
Router IPs	53


31.121.232.0	—	0
31.121.232.1	—	0
31.121.232.2	—	0
31.121.232.3	—	0
31.121.232.4	—	0
31.121.232.5	ftip004768432.acc2.guildford.21cn-nte.bt.net	0
31.121.232.6	—	0
31.121.232.7	—	0
31.121.232.8	—	0
31.121.232.9	ftip004768456.acc2.guildford.21cn-nte.bt.net	0
31.121.232.10	—	0
31.121.232.11	ftip007414626.acc3.colindale.21cn-nte.bt.net	0
31.121.232.12	—	0
31.121.232.13	ftip007416026.acc3.colindale.21cn-nte.bt.net	0
31.121.232.14	—	0
31.121.232.15	ftip007443497.acc3.colindale.21cn-nte.bt.net	0
31.121.232.16	—	0
31.121.232.17	ftip003390771.acc3.colindale.21cn-nte.bt.net	0
31.121.232.18	—	0
31.121.232.19	ftip004531708.acc2.kingston.21cn-nte.bt.net	0
31.121.232.20	—	0
31.121.232.21	—	0
31.121.232.22	—	0
31.121.232.23	ftip004701620.acc3.colindale.21cn-nte.bt.net	0
31.121.232.24	—	0
31.121.232.25	ftip007417023.acc3.mr.21cn-nte.bt.net	0
31.121.232.26	—	0
31.121.232.27	ftip005368020.acc3.colindale.21cn-nte.bt.net	0
31.121.232.28	—	0
31.121.232.29	—	0
31.121.232.30	—	0
31.121.232.31	—	0
31.121.232.32	—	0
31.121.232.33	—	0
31.121.232.34	—	0
31.121.232.35	—	0
31.121.232.36	—	0
31.121.232.37	—	0
31.121.232.38	—	0
31.121.232.39	—	0
31.121.232.40	—	0
31.121.232.41	—	0
31.121.232.42	—	0
31.121.232.43	—	0
31.121.232.44	—	0
31.121.232.45	—	0
31.121.232.46	—	0
31.121.232.47	ftip007479854.acc4.mr.21cn-nte.bt.net	0
31.121.232.48	—	0
31.121.232.49	—	0
31.121.232.50	—	0
31.121.232.51	—	0
31.121.232.52	—	0
31.121.232.53	ftip007417252-ms-fo.acc3.mr.21cn-nte.bt.net	0
31.121.232.54	—	0
31.121.232.55	—	0
31.121.232.56	—	0
31.121.232.57	ftip007417252-v1-fo.acc2.colindale.21cn-nte.bt.net	0
31.121.232.58	—	0
31.121.232.59	ftip003988763.acc3.birmingham.21cn-nte.bt.net	0
31.121.232.60	—	0
31.121.232.61	ftip007417429.acc4.mr.21cn-nte.bt.net	0
31.121.232.62	—	0
31.121.232.63	ftip007416248.acc4.mr.21cn-nte.bt.net	0
31.121.232.64	—	0
31.121.232.65	—	0
31.121.232.66	—	0
31.121.232.67	—	0
31.121.232.68	—	0
31.121.232.69	—	0
31.121.232.70	—	0
31.121.232.71	—	0
31.121.232.72	—	0
31.121.232.73	—	0
31.121.232.74	—	0
31.121.232.75	—	0
31.121.232.76	—	0
31.121.232.77	—	0
31.121.232.78	—	0
31.121.232.79	—	0
31.121.232.80	—	0
31.121.232.81	—	0
31.121.232.82	—	0
31.121.232.83	—	0
31.121.232.84	—	0
31.121.232.85	—	0
31.121.232.86	—	0
31.121.232.87	—	0
31.121.232.88	—	0
31.121.232.89	—	0
31.121.232.90	—	0
31.121.232.91	—	0
31.121.232.92	—	0
31.121.232.93	—	0
31.121.232.94	—	0
31.121.232.95	—	0
31.121.232.96	—	0
31.121.232.97	—	0
31.121.232.98	—	0
31.121.232.99	ftip007612886.acc3.sf.21cn-nte.bt.net	0
31.121.232.100	—	0
31.121.232.101	ftip007416224.acc4.mr.21cn-nte.bt.net	0
31.121.232.102	—	0
31.121.232.103	—	0
31.121.232.104	—	0
31.121.232.105	ftip007416620.acc4.mr.21cn-nte.bt.net	0
31.121.232.106	—	0
31.121.232.107	—	0
31.121.232.108	—	0
31.121.232.109	ftip007416637.acc4.mr.21cn-nte.bt.net	0
31.121.232.110	—	0
31.121.232.111	ftip003478127.acc4.mr.21cn-nte.bt.net	0
31.121.232.112	—	0
31.121.232.113	—	0
31.121.232.114	—	0
31.121.232.115	ftip007416477.acc4.mr.21cn-nte.bt.net	0
31.121.232.116	—	0
31.121.232.117	—	0
31.121.232.118	—	0
31.121.232.119	—	0
31.121.232.120	—	0
31.121.232.121	—	0
31.121.232.122	—	0
31.121.232.123	ftip007416453.acc4.mr.21cn-nte.bt.net	0
31.121.232.124	—	0
31.121.232.125	—	0
31.121.232.126	—	0
31.121.232.127	ftip007417450.acc3.colindale.21cn-nte.bt.net	0
31.121.232.128	—	0
31.121.232.129	ftip007416484.acc4.mr.21cn-nte.bt.net	0
31.121.232.130	—	0
31.121.232.131	—	0
31.121.232.132	—	0
31.121.232.133	ftip007416255.acc4.mr.21cn-nte.bt.net	0
31.121.232.134	—	0
31.121.232.135	—	0
31.121.232.136	—	0
31.121.232.137	ftip007416231.acc4.mr.21cn-nte.bt.net	0
31.121.232.138	—	0
31.121.232.139	—	0
31.121.232.140	—	0
31.121.232.141	—	0
31.121.232.142	—	0
31.121.232.143	ftip007416422.acc4.mr.21cn-nte.bt.net	0
31.121.232.144	—	0
31.121.232.145	—	0
31.121.232.146	—	0
31.121.232.147	—	0
31.121.232.148	—	0
31.121.232.149	—	0
31.121.232.150	—	0
31.121.232.151	—	0
31.121.232.152	—	0
31.121.232.153	—	0
31.121.232.154	—	0
31.121.232.155	—	0
31.121.232.156	—	0
31.121.232.157	—	0
31.121.232.158	—	0
31.121.232.159	ftip007416439.acc4.mr.21cn-nte.bt.net	0
31.121.232.160	—	0
31.121.232.161	ftip007416491.acc4.mr.21cn-nte.bt.net	0
31.121.232.162	—	0
31.121.232.163	ftip007416507.acc4.mr.21cn-nte.bt.net	0
31.121.232.164	—	0
31.121.232.165	—	0
31.121.232.166	—	0
31.121.232.167	—	0
31.121.232.168	—	0
31.121.232.169	—	0
31.121.232.170	—	0
31.121.232.171	—	0
31.121.232.172	—	0
31.121.232.173	ftip004768487.acc2.guildford.21cn-nte.bt.net	0
31.121.232.174	—	0
31.121.232.175	ftip004768524.acc2.guildford.21cn-nte.bt.net	0
31.121.232.176	—	0
31.121.232.177	ftip004399254.acc3.colindale.21cn-nte.bt.net	0
31.121.232.178	—	0
31.121.232.179	—	0
31.121.232.180	—	0
31.121.232.181	ftip003516843.acc2.guildford.21cn-nte.bt.net	0
31.121.232.182	—	0
31.121.232.183	—	0
31.121.232.184	—	0
31.121.232.185	—	0
31.121.232.186	—	0
31.121.232.187	—	0
31.121.232.188	—	0
31.121.232.189	ftip007417269.acc4.mr.21cn-nte.bt.net	0
31.121.232.190	—	0
31.121.232.191	ftip007357626.acc3.birmingham.21cn-nte.bt.net	0
31.121.232.192	—	0
31.121.232.193	—	0
31.121.232.194	—	0
31.121.232.195	—	0
31.121.232.196	—	0
31.121.232.197	ftip006354886.acc4.birmingham.21cn-nte.bt.net	0
31.121.232.198	—	0
31.121.232.199	—	0
31.121.232.200	—	0
31.121.232.201	—	0
31.121.232.202	—	0
31.121.232.203	ftip007418235.acc4.mr.21cn-nte.bt.net	0
31.121.232.204	—	0
31.121.232.205	ftip007612770.acc3.sf.21cn-nte.bt.net	0
31.121.232.206	—	0
31.121.232.207	ftip007418235.acc4.sf.21cn-nte.bt.net	0
31.121.232.208	—	0
31.121.232.209	ftip007418631.acc4.mr.21cn-nte.bt.net	0
31.121.232.210	—	0
31.121.232.211	ftip007417474.acc2.colindale.21cn-nte.bt.net	0
31.121.232.212	—	0
31.121.232.213	ftip007613692.acc2.kingston.21cn-nte.bt.net	0
31.121.232.214	—	0
31.121.232.215	ftip004157731.acc4.mr.21cn-nte.bt.net	0
31.121.232.216	—	0
31.121.232.217	ftip004282143.acc6.faraday.21cn-nte.bt.net	0
31.121.232.218	—	0
31.121.232.219	ftip007417276.acc2.colindale.21cn-nte.bt.net	0
31.121.232.220	—	0
31.121.232.221	—	0
31.121.232.222	—	0
31.121.232.223	—	0
31.121.232.224	—	0
31.121.232.225	—	0
31.121.232.226	—	0
31.121.232.227	—	0
31.121.232.228	—	0
31.121.232.229	ftip006230821.acc3.colindale.21cn-nte.bt.net	0
31.121.232.230	—	0
31.121.232.231	ftip003416730.acc6.faraday.21cn-nte.bt.net	0
31.121.232.232	—	0
31.121.232.233	ftip007417627.acc2.colindale.21cn-nte.bt.net	0
31.121.232.234	—	0
31.121.232.235	ftip004768821.acc1.guildford.21cn-nte.bt.net	0
31.121.232.236	—	0
31.121.232.237	ftip006198862.acc3.colindale.ukcore.bt.net	0
31.121.232.238	—	0
31.121.232.239	—	0
31.121.232.240	—	0
31.121.232.241	ftip003529164.acc4.mr.21cn-nte.bt.net	0
31.121.232.242	—	0
31.121.232.243	ftip007415852.acc1.guildford.21cn-nte.bt.net	0
31.121.232.244	—	0
31.121.232.245	—	0
31.121.232.246	—	0
31.121.232.247	ftip007417221.acc2.colindale.21cn-nte.bt.net	0
31.121.232.248	—	0
31.121.232.249	—	0
31.121.232.250	—	0
31.121.232.251	ftip007453540.acc4.mr.21cn-nte.bt.net	0
31.121.232.252	—	0
31.121.232.253	—	0
31.121.232.254	—	0
31.121.232.255	—	0

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f3 31.121.232.238

traceroute to 31.121.232.238 (31.121.232.238): 64 hops max, 52 byte packets

3 [AS2856] 62.6.201.24 186.13 ms

4 [AS2856] 31.121.232.238 181.532 ms

Measurement taken from

IPinfo ProbeNet in Delhi, IN

On December 28th 2025