Summary

ASN	AS2856 British Telecommunications PLC
BGP	31.121.0.0/16
IPs with RDNS	72
Hosted Domains	0
Pingable IPs	131
Router IPs	67


31.121.238.0	—	0
31.121.238.1	—	0
31.121.238.2	—	0
31.121.238.3	—	0
31.121.238.4	—	0
31.121.238.5	ftip004305163.acc2.colindale.21cn-nte.bt.net	0
31.121.238.6	—	0
31.121.238.7	ftip007438455-ms-lb.acc4.mr.21cn-nte.bt.net	0
31.121.238.8	—	0
31.121.238.9	ftip007438455-v1-lb.acc4.sf.21cn-nte.bt.net	0
31.121.238.10	—	0
31.121.238.11	ftip003497715-v2-fo.acc3.colindale.21cn-nte.bt.net	0
31.121.238.12	—	0
31.121.238.13	ftip007439650.acc4.mr.21cn-nte.bt.net	0
31.121.238.14	—	0
31.121.238.15	—	0
31.121.238.16	—	0
31.121.238.17	ftip007613920.acc4.faraday.21cn-nte.bt.net	0
31.121.238.18	—	0
31.121.238.19	ftip003511701.acc4.mr.21cn-nte.bt.net	0
31.121.238.20	—	0
31.121.238.21	—	0
31.121.238.22	—	0
31.121.238.23	—	0
31.121.238.24	—	0
31.121.238.25	ftip007437830.acc3.mr.21cn-nte.bt.net	0
31.121.238.26	—	0
31.121.238.27	—	0
31.121.238.28	—	0
31.121.238.29	ftip007439636.acc4.sf.21cn-nte.bt.net	0
31.121.238.30	—	0
31.121.238.31	ftip007439674.acc4.sf.21cn-nte.bt.net	0
31.121.238.32	—	0
31.121.238.33	—	0
31.121.238.34	—	0
31.121.238.35	ftip007690693.acc1.colindale.21cn-nte.bt.net	0
31.121.238.36	—	0
31.121.238.37	—	0
31.121.238.38	—	0
31.121.238.39	ftip007437854.acc3.mr.21cn-nte.bt.net	0
31.121.238.40	—	0
31.121.238.41	—	0
31.121.238.42	—	0
31.121.238.43	ftip007439667.acc4.sf.21cn-nte.bt.net	0
31.121.238.44	—	0
31.121.238.45	—	0
31.121.238.46	—	0
31.121.238.47	ftip007439841-ms-lb.acc4.mr.21cn-nte.bt.net	0
31.121.238.48	—	0
31.121.238.49	ftip007439841-v1-lb.acc4.sf.21cn-nte.bt.net	0
31.121.238.50	—	0
31.121.238.51	ftip007439025.acc3.mr.21cn-nte.bt.net	0
31.121.238.52	—	0
31.121.238.53	—	0
31.121.238.54	—	0
31.121.238.55	—	0
31.121.238.56	—	0
31.121.238.57	—	0
31.121.238.58	—	0
31.121.238.59	—	0
31.121.238.60	—	0
31.121.238.61	—	0
31.121.238.62	—	0
31.121.238.63	—	0
31.121.238.64	—	0
31.121.238.65	—	0
31.121.238.66	—	0
31.121.238.67	ftip003463086.acc3.colindale.21cn-nte.bt.net	0
31.121.238.68	—	0
31.121.238.69	—	0
31.121.238.70	—	0
31.121.238.71	—	0
31.121.238.72	—	0
31.121.238.73	—	0
31.121.238.74	—	0
31.121.238.75	ftip003328347-v1-lb.acc2.guildford.21cn-nte.bt.net	0
31.121.238.76	—	0
31.121.238.77	—	0
31.121.238.78	—	0
31.121.238.79	—	0
31.121.238.80	—	0
31.121.238.81	—	0
31.121.238.82	—	0
31.121.238.83	—	0
31.121.238.84	—	0
31.121.238.85	—	0
31.121.238.86	—	0
31.121.238.87	—	0
31.121.238.88	—	0
31.121.238.89	—	0
31.121.238.90	—	0
31.121.238.91	ftip007441448-v1-lb.acc4.sf.21cn-nte.bt.net	0
31.121.238.92	—	0
31.121.238.93	ftip007439278.acc3.birmingham.21cn-nte.bt.net	0
31.121.238.94	—	0
31.121.238.95	ftip007439681-ms-fo.acc4.mr.21cn-nte.bt.net	0
31.121.238.96	—	0
31.121.238.97	ftip007439681-v1-fo.acc4.sf.21cn-nte.bt.net	0
31.121.238.98	—	0
31.121.238.99	—	0
31.121.238.100	—	0
31.121.238.101	ftip007439445.acc3.colindale.21cn-nte.bt.net	0
31.121.238.102	—	0
31.121.238.103	ftip007439322.acc3.colindale.21cn-nte.bt.net	0
31.121.238.104	—	0
31.121.238.105	ftip006889043-v1-bk.acc3.sf.21cn-nte.bt.net	0
31.121.238.106	—	0
31.121.238.107	—	0
31.121.238.108	—	0
31.121.238.109	—	0
31.121.238.110	—	0
31.121.238.111	ftip007690488.acc4.faraday.21cn-nte.bt.net	0
31.121.238.112	—	0
31.121.238.113	ftip007440458.acc3.colindale.21cn-nte.bt.net	0
31.121.238.114	—	0
31.121.238.115	ftip007440830.acc4.mr.21cn-nte.bt.net	0
31.121.238.116	—	0
31.121.238.117	ftip007442629.acc3.colindale.21cn-nte.bt.net	0
31.121.238.118	—	0
31.121.238.119	—	0
31.121.238.120	—	0
31.121.238.121	ftip007441899.acc6.faraday.21cn-nte.bt.net	0
31.121.238.122	—	0
31.121.238.123	—	0
31.121.238.124	—	0
31.121.238.125	—	0
31.121.238.126	—	0
31.121.238.127	—	0
31.121.238.128	—	0
31.121.238.129	—	0
31.121.238.130	—	0
31.121.238.131	—	0
31.121.238.132	—	0
31.121.238.133	—	0
31.121.238.134	—	0
31.121.238.135	ftip007439285.acc3.mr.21cn-nte.bt.net	0
31.121.238.136	—	0
31.121.238.137	ftip007439315.acc3.birmingham.21cn-nte.bt.net	0
31.121.238.138	—	0
31.121.238.139	ftip007439292.acc3.mr.21cn-nte.bt.net	0
31.121.238.140	—	0
31.121.238.141	ftip007440434.acc3.colindale.21cn-nte.bt.net	0
31.121.238.142	—	0
31.121.238.143	ftip007439308.acc3.mr.21cn-nte.bt.net	0
31.121.238.144	—	0
31.121.238.145	—	0
31.121.238.146	—	0
31.121.238.147	ftip004539636-v1-fo.acc4.birmingham.21cn-nte.bt.net	0
31.121.238.148	—	0
31.121.238.149	ftip007440229.acc3.birmingham.21cn-nte.bt.net	0
31.121.238.150	—	0
31.121.238.151	ftip007439261.acc3.mr.21cn-nte.bt.net	0
31.121.238.152	—	0
31.121.238.153	ftip007441844-ms-fo.acc3.colindale.21cn-nte.bt.net	0
31.121.238.154	—	0
31.121.238.155	—	0
31.121.238.156	—	0
31.121.238.157	ftip007440625.acc3.colindale.ukcore.bt.net	0
31.121.238.158	—	0
31.121.238.159	ftip007441844-v1-fo.acc6.faraday.21cn-nte.bt.net	0
31.121.238.160	—	0
31.121.238.161	ftip007613708.acc2.colindale.21cn-nte.bt.net	0
31.121.238.162	—	0
31.121.238.163	ftip007440632.acc3.colindale.21cn-nte.bt.net	0
31.121.238.164	—	0
31.121.238.165	ftip007439346.acc3.birmingham.21cn-nte.bt.net	0
31.121.238.166	—	0
31.121.238.167	ftip007440656.acc3.mr.21cn-nte.bt.net	0
31.121.238.168	—	0
31.121.238.169	—	0
31.121.238.170	—	0
31.121.238.171	—	0
31.121.238.172	—	0
31.121.238.173	ftip007439353.acc3.birmingham.21cn-nte.bt.net	0
31.121.238.174	—	0
31.121.238.175	—	0
31.121.238.176	—	0
31.121.238.177	—	0
31.121.238.178	—	0
31.121.238.179	ftip007442421.acc2.colindale.21cn-nte.bt.net	0
31.121.238.180	—	0
31.121.238.181	ftip007442438.acc5.faraday.21cn-nte.bt.net	0
31.121.238.182	—	0
31.121.238.183	ftip007442445.acc4.birmingham.21cn-nte.bt.net	0
31.121.238.184	—	0
31.121.238.185	ftip007439360.acc3.colindale.21cn-nte.bt.net	0
31.121.238.186	—	0
31.121.238.187	—	0
31.121.238.188	—	0
31.121.238.189	ftip007439469.acc3.colindale.21cn-nte.bt.net	0
31.121.238.190	—	0
31.121.238.191	—	0
31.121.238.192	—	0
31.121.238.193	ftip007440427.acc3.colindale.21cn-nte.bt.net	0
31.121.238.194	—	0
31.121.238.195	ftip007442834.acc3.colindale.21cn-nte.bt.net	0
31.121.238.196	—	0
31.121.238.197	ftip007613081.acc3.colindale.21cn-nte.bt.net	0
31.121.238.198	—	0
31.121.238.199	ftip007441424.acc3.birmingham.21cn-nte.bt.net	0
31.121.238.200	—	0
31.121.238.201	ftip007439414.acc2.kingston.21cn-nte.bt.net	0
31.121.238.202	—	0
31.121.238.203	ftip007441431.acc3.colindale.21cn-nte.bt.net	0
31.121.238.204	—	0
31.121.238.205	ftip007439377.acc2.kingston.21cn-nte.bt.net	0
31.121.238.206	—	0
31.121.238.207	ftip007439384.acc2.kingston.21cn-nte.bt.net	0
31.121.238.208	—	0
31.121.238.209	ftip004852421.acc4.birmingham.21cn-nte.bt.net	0
31.121.238.210	—	0
31.121.238.211	ftip004572732.acc3.colindale.21cn-nte.bt.net	0
31.121.238.212	—	0
31.121.238.213	ftip004999232.acc3.birmingham.21cn-nte.bt.net	0
31.121.238.214	—	0
31.121.238.215	1380766.acc3.faraday.21cn-nte.bt.net	0
31.121.238.216	—	0
31.121.238.217	—	0
31.121.238.218	—	0
31.121.238.219	—	0
31.121.238.220	—	0
31.121.238.221	ftip004522829.acc4.faraday.21cn-nte.bt.net	0
31.121.238.222	—	0
31.121.238.223	ftip004041139.acc4.faraday.21cn-nte.bt.net	0
31.121.238.224	—	0
31.121.238.225	—	0
31.121.238.226	—	0
31.121.238.227	ftip007692680.acc3.colindale.21cn-nte.bt.net	0
31.121.238.228	—	0
31.121.238.229	ftip007443503.acc3.colindale.21cn-nte.bt.net	0
31.121.238.230	—	0
31.121.238.231	—	0
31.121.238.232	—	0
31.121.238.233	ftip004471424.acc3.colindale.21cn-nte.bt.net	0
31.121.238.234	—	0
31.121.238.235	—	0
31.121.238.236	—	0
31.121.238.237	ftip007443459.acc3.colindale.21cn-nte.bt.net	0
31.121.238.238	—	0
31.121.238.239	—	0
31.121.238.240	—	0
31.121.238.241	—	0
31.121.238.242	—	0
31.121.238.243	ftip007443466.acc3.colindale.21cn-nte.bt.net	0
31.121.238.244	—	0
31.121.238.245	—	0
31.121.238.246	—	0
31.121.238.247	ftip007343476-v1-lb.acc4.sf.21cn-nte.bt.net	0
31.121.238.248	—	0
31.121.238.249	—	0
31.121.238.250	—	0
31.121.238.251	ftip007514241.acc4.mr.21cn-nte.bt.net	0
31.121.238.252	—	0
31.121.238.253	—	0
31.121.238.254	—	0
31.121.238.255	—	0

Traceroute

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

$ traceroute -a -n -q1 31.121.238.32

traceroute to 31.121.238.32 (31.121.238.32): 64 hops max, 52 byte packets

1 [AS15169] 74.125.251.219 24.386 ms

2 *

3 [AS2856] 213.121.193.160 26.171 ms

4 [AS2856] 31.121.238.32 26.001 ms

Measurement taken from

IPinfo ProbeNet in Turin, IT

On March 13, 2026