Summary

ASN	AS2856 British Telecommunications PLC
BGP	31.121.0.0/16
IPs with RDNS	58
Hosted Domains	0
Pingable IPs	126
Router IPs	46


31.121.239.0	—	0
31.121.239.1	—	0
31.121.239.2	—	0
31.121.239.3	ftip007443480.acc5.faraday.21cn-nte.bt.net	0
31.121.239.4	—	0
31.121.239.5	—	0
31.121.239.6	—	0
31.121.239.7	—	0
31.121.239.8	—	0
31.121.239.9	—	0
31.121.239.10	—	0
31.121.239.11	ftip007439452.acc4.mr.21cn-nte.bt.net	0
31.121.239.12	—	0
31.121.239.13	ftip007439254.acc3.colindale.21cn-nte.bt.net	0
31.121.239.14	—	0
31.121.239.15	—	0
31.121.239.16	—	0
31.121.239.17	ftip007444692.acc2.guildford.21cn-nte.bt.net	0
31.121.239.18	—	0
31.121.239.19	—	0
31.121.239.20	—	0
31.121.239.21	—	0
31.121.239.22	—	0
31.121.239.23	ftip007443633.acc4.birmingham.21cn-nte.bt.net	0
31.121.239.24	—	0
31.121.239.25	ftip007443626.acc4.birmingham.21cn-nte.bt.net	0
31.121.239.26	—	0
31.121.239.27	—	0
31.121.239.28	—	0
31.121.239.29	—	0
31.121.239.30	—	0
31.121.239.31	—	0
31.121.239.32	—	0
31.121.239.33	ftip007444678.acc4.mr.21cn-nte.bt.net	0
31.121.239.34	—	0
31.121.239.35	—	0
31.121.239.36	—	0
31.121.239.37	—	0
31.121.239.38	—	0
31.121.239.39	ftip007690495.acc4.faraday.21cn-nte.bt.net	0
31.121.239.40	—	0
31.121.239.41	—	0
31.121.239.42	—	0
31.121.239.43	ftip007439421.acc4.mr.21cn-nte.bt.net	0
31.121.239.44	—	0
31.121.239.45	ftip006677435.acc3.colindale.21cn-nte.bt.net	0
31.121.239.46	—	0
31.121.239.47	ftip007444708.acc6.faraday.21cn-nte.bt.net	0
31.121.239.48	—	0
31.121.239.49	—	0
31.121.239.50	ftip007419645.acc4.birmingham.21cn-nte.bt.net	0
31.121.239.51	—	0
31.121.239.52	—	0
31.121.239.53	ftip007439438.acc5.faraday.21cn-nte.bt.net	0
31.121.239.54	—	0
31.121.239.55	—	0
31.121.239.56	—	0
31.121.239.57	ftip004050544.acc5.faraday.21cn-nte.bt.net	0
31.121.239.58	—	0
31.121.239.59	ftip007442025.acc5.faraday.21cn-nte.bt.net	0
31.121.239.60	—	0
31.121.239.61	—	0
31.121.239.62	—	0
31.121.239.63	ftip003205662-v1-lb.acc4.faraday.21cn-nte.bt.net	0
31.121.239.64	—	0
31.121.239.65	ftip005320875.acc2.kingston.21cn-nte.bt.net	0
31.121.239.66	—	0
31.121.239.67	ftip007442230.acc5.faraday.21cn-nte.bt.net	0
31.121.239.68	—	0
31.121.239.69	—	0
31.121.239.70	—	0
31.121.239.71	ftip007443527.acc5.faraday.21cn-nte.bt.net	0
31.121.239.72	—	0
31.121.239.73	—	0
31.121.239.74	—	0
31.121.239.75	—	0
31.121.239.76	—	0
31.121.239.77	—	0
31.121.239.78	—	0
31.121.239.79	—	0
31.121.239.80	—	0
31.121.239.81	—	0
31.121.239.82	—	0
31.121.239.83	ftip005344826.acc3.birmingham.21cn-nte.bt.net	0
31.121.239.84	—	0
31.121.239.85	—	0
31.121.239.86	—	0
31.121.239.87	ftip003751336.acc5.faraday.21cn-nte.bt.net	0
31.121.239.88	—	0
31.121.239.89	ftip004768609.acc5.faraday.21cn-nte.bt.net	0
31.121.239.90	—	0
31.121.239.91	ftip004690023.acc3.birmingham.21cn-nte.bt.net	0
31.121.239.92	—	0
31.121.239.93	ftip003200445.acc3.faraday.21cn-nte.bt.net	0
31.121.239.94	—	0
31.121.239.95	ftip003514153.acc2.kingston.21cn-nte.bt.net	0
31.121.239.96	—	0
31.121.239.97	—	0
31.121.239.98	—	0
31.121.239.99	ftip004428626.acc3.birmingham.21cn-nte.bt.net	0
31.121.239.100	—	0
31.121.239.101	—	0
31.121.239.102	—	0
31.121.239.103	ftip005491254.acc5.faraday.21cn-nte.bt.net	0
31.121.239.104	—	0
31.121.239.105	ftip007618536.acc2.faraday.21cn-nte.bt.net	0
31.121.239.106	—	0
31.121.239.107	—	0
31.121.239.108	—	0
31.121.239.109	—	0
31.121.239.110	—	0
31.121.239.111	—	0
31.121.239.112	—	0
31.121.239.113	ftip007445361.acc3.birmingham.21cn-nte.bt.net	0
31.121.239.114	—	0
31.121.239.115	—	0
31.121.239.116	—	0
31.121.239.117	—	0
31.121.239.118	—	0
31.121.239.119	—	0
31.121.239.120	—	0
31.121.239.121	ftip003409930.acc3.birmingham.21cn-nte.bt.net	0
31.121.239.122	—	0
31.121.239.123	—	0
31.121.239.124	—	0
31.121.239.125	ftip007445248.acc3.birmingham.21cn-nte.bt.net	0
31.121.239.126	—	0
31.121.239.127	—	0
31.121.239.128	—	0
31.121.239.129	ftip007622939.acc3.birmingham.21cn-nte.bt.net	0
31.121.239.130	—	0
31.121.239.131	ftip007446658.acc3.colindale.21cn-nte.bt.net	0
31.121.239.132	—	0
31.121.239.133	ftip007446245.acc6.faraday.21cn-nte.bt.net	0
31.121.239.134	—	0
31.121.239.135	—	0
31.121.239.136	—	0
31.121.239.137	ftip005650057.acc3.colindale.21cn-nte.bt.net	0
31.121.239.138	—	0
31.121.239.139	—	0
31.121.239.140	—	0
31.121.239.141	acc3.colindale.21cn-nte.bt.net	0
31.121.239.142	—	0
31.121.239.143	—	0
31.121.239.144	—	0
31.121.239.145	—	0
31.121.239.146	—	0
31.121.239.147	—	0
31.121.239.148	—	0
31.121.239.149	—	0
31.121.239.150	—	0
31.121.239.151	—	0
31.121.239.152	—	0
31.121.239.153	—	0
31.121.239.154	—	0
31.121.239.155	—	0
31.121.239.156	—	0
31.121.239.157	—	0
31.121.239.158	—	0
31.121.239.159	ftip007445408.acc3.colindale.21cn-nte.bt.net	0
31.121.239.160	—	0
31.121.239.161	ftip003538531.acc3.colindale.21cn-nte.bt.net	0
31.121.239.162	—	0
31.121.239.163	—	0
31.121.239.164	—	0
31.121.239.165	—	0
31.121.239.166	—	0
31.121.239.167	—	0
31.121.239.168	—	0
31.121.239.169	ftip007445422.acc3.birmingham.21cn-nte.bt.net	0
31.121.239.170	—	0
31.121.239.171	—	0
31.121.239.172	—	0
31.121.239.173	—	0
31.121.239.174	—	0
31.121.239.175	ftip007445354.acc3.colindale.21cn-nte.bt.net	0
31.121.239.176	—	0
31.121.239.177	—	0
31.121.239.178	—	0
31.121.239.179	—	0
31.121.239.180	—	0
31.121.239.181	—	0
31.121.239.182	—	0
31.121.239.183	—	0
31.121.239.184	—	0
31.121.239.185	—	0
31.121.239.186	—	0
31.121.239.187	—	0
31.121.239.188	—	0
31.121.239.189	—	0
31.121.239.190	—	0
31.121.239.191	—	0
31.121.239.192	—	0
31.121.239.193	—	0
31.121.239.194	—	0
31.121.239.195	—	0
31.121.239.196	—	0
31.121.239.197	ftip007444098.acc2.faraday.21cn-nte.bt.net	0
31.121.239.198	—	0
31.121.239.199	ftip007445293.acc4.faraday.21cn-nte.bt.net	0
31.121.239.200	—	0
31.121.239.201	ftip007444456.acc4.faraday.21cn-nte.bt.net	0
31.121.239.202	—	0
31.121.239.203	ftip007445224.acc5.faraday.21cn-nte.bt.net	0
31.121.239.204	—	0
31.121.239.205	ftip003503829.acc3.mr.21cn-nte.bt.net	0
31.121.239.206	—	0
31.121.239.207	—	0
31.121.239.208	—	0
31.121.239.209	ftip005504367.acc3.birmingham.21cn-nte.bt.net	0
31.121.239.210	—	0
31.121.239.211	ftip003616956-ms-bk.acc3.colindale.21cn-nte.bt.net	0
31.121.239.212	—	0
31.121.239.213	ftip007447259.acc3.mr.21cn-nte.bt.net	0
31.121.239.214	—	0
31.121.239.215	ftip003616956-v1-bk.acc2.kingston.21cn-nte.bt.net	0
31.121.239.216	—	0
31.121.239.217	ftip007619304.acc2.faraday.21cn-nte.bt.net	0
31.121.239.218	—	0
31.121.239.219	—	0
31.121.239.220	—	0
31.121.239.221	—	0
31.121.239.222	—	0
31.121.239.223	—	0
31.121.239.224	—	0
31.121.239.225	ftip007448669.acc4.birmingham.21cn-nte.bt.net	0
31.121.239.226	—	0
31.121.239.227	ftip004030188.acc3.colindale.21cn-nte.bt.net	0
31.121.239.228	—	0
31.121.239.229	ftip007447648.acc3.mr.21cn-nte.bt.net	0
31.121.239.230	—	0
31.121.239.231	—	0
31.121.239.232	—	0
31.121.239.233	ftip004339939.acc3.mr.21cn-nte.bt.net	0
31.121.239.234	—	0
31.121.239.235	ftip007447624.acc3.mr.21cn-nte.bt.net	0
31.121.239.236	—	0
31.121.239.237	—	0
31.121.239.238	—	0
31.121.239.239	—	0
31.121.239.240	—	0
31.121.239.241	—	0
31.121.239.242	—	0
31.121.239.243	—	0
31.121.239.244	—	0
31.121.239.245	ftip007447440.acc3.mr.21cn-nte.bt.net	0
31.121.239.246	—	0
31.121.239.247	—	0
31.121.239.248	—	0
31.121.239.249	ftip003370773.acc3.birmingham.21cn-nte.bt.net	0
31.121.239.250	—	0
31.121.239.251	—	0
31.121.239.252	—	0
31.121.239.253	ftip007447457.acc3.mr.21cn-nte.bt.net	0
31.121.239.254	—	0
31.121.239.255	—	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 31.121.239.190

traceroute to 31.121.239.190 (31.121.239.190): 64 hops max, 52 byte packets

3 [AS2856] 109.159.253.113 9.325 ms

4 [AS2856] 62.6.201.12 9.523 ms

5 [AS2856] 31.121.239.190 13.969 ms

Measurement taken from

IPinfo ProbeNet in Edinburgh, GB

On January 9th 2026