Summary

ASN	AS2856 British Telecommunications PLC
BGP	81.128.0.0/12
IPs with RDNS	69
Hosted Domains	0
Pingable IPs	102
Router IPs	46


81.134.230.0	—	0
81.134.230.1	—	0
81.134.230.2	—	0
81.134.230.3	ftip004057741.acc3.sf.21cn-ipp.bt.net	0
81.134.230.4	—	0
81.134.230.5	—	0
81.134.230.6	—	0
81.134.230.7	—	0
81.134.230.8	—	0
81.134.230.9	ftip006772628.acc4.mr.21cn-nte.bt.net	0
81.134.230.10	—	0
81.134.230.11	ftip004049753-v1-bk.acc3.sf.21cn-ipp.bt.net	0
81.134.230.12	—	0
81.134.230.13	ftip007546495.acc4.sf.21cn-nte.bt.net	0
81.134.230.14	—	0
81.134.230.15	ftip007546198.acc4.mr.21cn-nte.bt.net	0
81.134.230.16	—	0
81.134.230.17	ftip004297741.l-nws.21cn-ipp.bt.net	0
81.134.230.18	—	0
81.134.230.19	—	0
81.134.230.20	—	0
81.134.230.21	—	0
81.134.230.22	—	0
81.134.230.23	ftip006772642.acc4.birmingham.21cn-nte.bt.net	0
81.134.230.24	—	0
81.134.230.25	—	0
81.134.230.26	—	0
81.134.230.27	ftip004055372.acc3.birmingham.21cn-nte.bt.net	0
81.134.230.28	—	0
81.134.230.29	ftip006868024.acc4.mr.21cn-nte.bt.net	0
81.134.230.30	—	0
81.134.230.31	ftip007013232.acc5.faraday.21cn-nte.bt.net	0
81.134.230.32	—	0
81.134.230.33	—	0
81.134.230.34	—	0
81.134.230.35	—	0
81.134.230.36	—	0
81.134.230.37	—	0
81.134.230.38	—	0
81.134.230.39	ftip003421734-ms-lb.acc5.faraday.21cn-nte.bt.net	0
81.134.230.40	—	0
81.134.230.41	—	0
81.134.230.42	—	0
81.134.230.43	—	0
81.134.230.44	—	0
81.134.230.45	—	0
81.134.230.46	—	0
81.134.230.47	—	0
81.134.230.48	—	0
81.134.230.49	ftip007060458.acc5.faraday.21cn-nte.bt.net	0
81.134.230.50	—	0
81.134.230.51	—	0
81.134.230.52	—	0
81.134.230.53	—	0
81.134.230.54	—	0
81.134.230.55	ftip007546228-ms-fo.acc5.faraday.21cn-nte.bt.net	0
81.134.230.56	—	0
81.134.230.57	ftip004211143.acc3.mr.21cn-ipp.bt.net	0
81.134.230.58	—	0
81.134.230.59	ftip004211150.acc3.sf.21cn-ipp.bt.net	0
81.134.230.60	—	0
81.134.230.61	—	0
81.134.230.62	ftip003170236.acc3.birmingham.21cn-nte.bt.net	0
81.134.230.63	—	0
81.134.230.64	—	0
81.134.230.65	—	0
81.134.230.66	—	0
81.134.230.67	ftip006365035.acc5.faraday.21cn-nte.bt.net	0
81.134.230.68	—	0
81.134.230.69	ftip004211358.acc3.birmingham.21cn-nte.bt.net	0
81.134.230.70	—	0
81.134.230.71	—	0
81.134.230.72	—	0
81.134.230.73	ftip003467558.acc3.birmingham.21cn-nte.bt.net	0
81.134.230.74	—	0
81.134.230.75	ftip004002550-ms-bk.acc4.mr.21cn-nte.bt.net	0
81.134.230.76	—	0
81.134.230.77	ftip004326953.acc2.kingston.21cn-nte.bt.net	0
81.134.230.78	—	0
81.134.230.79	ftip004326366.acc3.mr.21cn-ipp.bt.net	0
81.134.230.80	—	0
81.134.230.81	ftip006094843.acc4.sheffield.21cn-nte.bt.net	0
81.134.230.82	—	0
81.134.230.83	ftip007111853.acc2.colindale.21cn-nte.bt.net	0
81.134.230.84	—	0
81.134.230.85	—	0
81.134.230.86	—	0
81.134.230.87	—	0
81.134.230.88	—	0
81.134.230.89	ftip006322021.acc1.guildford.21cn-nte.bt.net	0
81.134.230.90	—	0
81.134.230.91	ftip006885625.acc4.mr.21cn-nte.bt.net	0
81.134.230.92	—	0
81.134.230.93	ftip003337844.acc5.faraday.21cn-nte.bt.net	0
81.134.230.94	—	0
81.134.230.95	ftip006772833.acc4.birmingham.21cn-nte.bt.net	0
81.134.230.96	—	0
81.134.230.97	—	0
81.134.230.98	—	0
81.134.230.99	ftip004061816.acc2.kingston.21cn-nte.bt.net	0
81.134.230.100	—	0
81.134.230.101	ftip004640844.l-nws.21cn-ipp.bt.net	0
81.134.230.102	—	0
81.134.230.103	ftip006868222.acc3.birmingham.21cn-nte.bt.net	0
81.134.230.104	—	0
81.134.230.105	ftip005470860.acc3.sf.21cn-ipp.bt.net	0
81.134.230.106	—	0
81.134.230.107	ftip007546228-v1-fo.acc1.birmingham.21cn-nte.bt.net	0
81.134.230.108	—	0
81.134.230.109	—	0
81.134.230.110	—	0
81.134.230.111	—	0
81.134.230.112	—	0
81.134.230.113	ftip005329250.acc4.sf.21cn-nte.bt.net	0
81.134.230.114	—	0
81.134.230.115	—	0
81.134.230.116	—	0
81.134.230.117	—	0
81.134.230.118	—	0
81.134.230.119	—	0
81.134.230.120	—	0
81.134.230.121	ftip004623236-v1-fo.acc3.birmingham.21cn-nte.bt.net	0
81.134.230.122	—	0
81.134.230.123	ftip004623625-v1-fo.acc3.sf.21cn-ipp.bt.net	0
81.134.230.124	—	0
81.134.230.125	ftip003328576.acc5.faraday.21cn-nte.bt.net	0
81.134.230.126	—	0
81.134.230.127	—	0
81.134.230.128	—	0
81.134.230.129	ftip004055532.acc2.kingston.21cn-nte.bt.net	0
81.134.230.130	—	0
81.134.230.131	—	0
81.134.230.132	—	0
81.134.230.133	—	0
81.134.230.134	—	0
81.134.230.135	—	0
81.134.230.136	—	0
81.134.230.137	ftip005326457.acc4.sf.21cn-nte.bt.net	0
81.134.230.138	—	0
81.134.230.139	—	0
81.134.230.140	—	0
81.134.230.141	ftip005470020.acc3.sf.21cn-ipp.bt.net	0
81.134.230.142	—	0
81.134.230.143	—	0
81.134.230.144	—	0
81.134.230.145	ftip005074037.acc4.mr.21cn-nte.bt.net	0
81.134.230.146	—	0
81.134.230.147	—	0
81.134.230.148	—	0
81.134.230.149	—	0
81.134.230.150	—	0
81.134.230.151	—	0
81.134.230.152	—	0
81.134.230.153	—	0
81.134.230.154	—	0
81.134.230.155	—	0
81.134.230.156	—	0
81.134.230.157	ftip004075134.acc4.faraday.21cn-nte.bt.net	0
81.134.230.158	—	0
81.134.230.159	—	0
81.134.230.160	—	0
81.134.230.161	ftip006513634.acc2.colindale.21cn-nte.bt.net	0
81.134.230.162	—	0
81.134.230.163	—	0
81.134.230.164	—	0
81.134.230.165	ftip004002550-v2-bk.acc3.sf.21cn-nte.bt.net	0
81.134.230.166	—	0
81.134.230.167	ftip007129223.acc2.colindale.21cn-nte.bt.net	0
81.134.230.168	—	0
81.134.230.169	ftip006772635.acc2.kingston.21cn-nte.bt.net	0
81.134.230.170	—	0
81.134.230.171	—	0
81.134.230.172	—	0
81.134.230.173	—	0
81.134.230.174	—	0
81.134.230.175	—	0
81.134.230.176	—	0
81.134.230.177	ftip007662102.acc4.faraday.21cn-nte.bt.net	0
81.134.230.178	—	0
81.134.230.179	ftip007042621.acc3.colindale.21cn-nte.bt.net	0
81.134.230.180	—	0
81.134.230.181	ftip004250609.acc4.faraday.21cn-nte.bt.net	0
81.134.230.182	—	0
81.134.230.183	—	0
81.134.230.184	—	0
81.134.230.185	—	0
81.134.230.186	—	0
81.134.230.187	ftip004695448.access2.birmingham.fixed-nte.bt.net	0
81.134.230.188	—	0
81.134.230.189	—	0
81.134.230.190	—	0
81.134.230.191	ftip004301745.acc2.colindale.21cn-nte.bt.net	0
81.134.230.192	—	0
81.134.230.193	—	0
81.134.230.194	—	0
81.134.230.195	—	0
81.134.230.196	—	0
81.134.230.197	—	0
81.134.230.198	—	0
81.134.230.199	—	0
81.134.230.200	—	0
81.134.230.201	ftip005410620.acc3.birmingham.21cn-nte.bt.net	0
81.134.230.202	—	0
81.134.230.203	—	0
81.134.230.204	—	0
81.134.230.205	—	0
81.134.230.206	—	0
81.134.230.207	ftip004826439.acc3.sf.21cn-nte.bt.net	0
81.134.230.208	—	0
81.134.230.209	—	0
81.134.230.210	—	0
81.134.230.211	—	0
81.134.230.212	—	0
81.134.230.213	ftip003282427.l-nws.21cn-ipp.bt.net	0
81.134.230.214	—	0
81.134.230.215	ftip004001539.acc3.mr.21cn-ipp.bt.net	0
81.134.230.216	—	0
81.134.230.217	—	0
81.134.230.218	—	0
81.134.230.219	—	0
81.134.230.220	—	0
81.134.230.221	ftip007547331.acc4.sf.21cn-nte.bt.net	0
81.134.230.222	—	0
81.134.230.223	—	0
81.134.230.224	—	0
81.134.230.225	ftip005467648.acc3.birmingham.21cn-nte.bt.net	0
81.134.230.226	—	0
81.134.230.227	ftip005471096.acc3.sf.21cn-ipp.bt.net	0
81.134.230.228	—	0
81.134.230.229	ftip005471041.acc3.birmingham.21cn-nte.bt.net	0
81.134.230.230	—	0
81.134.230.231	ftip003241011.acc3.faraday.21cn-nte.bt.net	0
81.134.230.232	—	0
81.134.230.233	ftip006569228.acc4.birmingham.21cn-nte.bt.net	0
81.134.230.234	—	0
81.134.230.235	ftip003477601.acc2.colindale.21cn-nte.bt.net	0
81.134.230.236	—	0
81.134.230.237	ftip005014231.access2.birmingham.fixed-nte.bt.net	0
81.134.230.238	—	0
81.134.230.239	ftip005017638.acc3.birmingham.21cn-nte.bt.net	0
81.134.230.240	—	0
81.134.230.241	—	0
81.134.230.242	ftip003218495-v1-lb.acc3.birmingham.21cn-nte.bt.net	0
81.134.230.243	—	0
81.134.230.244	—	0
81.134.230.245	ftip005417698-ms-fo.acc4.sf.21cn-nte.bt.net	0
81.134.230.246	—	0
81.134.230.247	ftip006773229.acc4.sf.21cn-nte.bt.net	0
81.134.230.248	—	0
81.134.230.249	ftip006321284.acc2.faraday.21cn-nte.bt.net	0
81.134.230.250	—	0
81.134.230.251	—	0
81.134.230.252	—	0
81.134.230.253	ftip006866877.acc2.birmingham.21cn-nte.bt.net	0
81.134.230.254	—	0
81.134.230.255	—	0

Traceroute

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

traceroute -a -n -q1 81.134.230.248

traceroute to 81.134.230.248 (81.134.230.248): 64 hops max, 52 byte packets

1 [AS15169] 74.125.251.219 244.808 ms

2 *

3 [AS2856] 62.6.201.44 177.636 ms

4 [AS2856] 81.134.230.248 177.782 ms

Measurement taken from

IPinfo ProbeNet in Jakarta, ID

On November 28th 2025