Summary

ASN	AS8220 COLT Technology Services Group Limited
BGP	212.121.128.0/19
IPs with RDNS	67
Hosted Domains	0
Pingable IPs	126
Router IPs	46


212.121.154.0	—	0
212.121.154.1	—	0
212.121.154.2	cpede_fra000732.ia.colt.net	0
212.121.154.3	—	0
212.121.154.4	—	0
212.121.154.5	—	0
212.121.154.6	cpede_haj000531.ia.colt.net	0
212.121.154.7	—	0
212.121.154.8	—	0
212.121.154.9	ar2.fra.de.colt.net	0
212.121.154.10	cpede_ber000357.ia.colt.net	0
212.121.154.11	—	0
212.121.154.12	—	0
212.121.154.13	—	0
212.121.154.14	—	0
212.121.154.15	—	0
212.121.154.16	—	0
212.121.154.17	—	0
212.121.154.18	—	0
212.121.154.19	—	0
212.121.154.20	cpede_cgn000612.ia.colt.net	0
212.121.154.21	cpede_ger000389.ia.colt.net	0
212.121.154.22	cpede_uwe000017.ia.colt.net	0
212.121.154.23	—	0
212.121.154.24	—	0
212.121.154.25	—	0
212.121.154.26	—	0
212.121.154.27	—	0
212.121.154.28	—	0
212.121.154.29	—	0
212.121.154.30	cpede_ber001693.ia.colt.net	0
212.121.154.31	—	0
212.121.154.32	—	0
212.121.154.33	—	0
212.121.154.34	—	0
212.121.154.35	—	0
212.121.154.36	—	0
212.121.154.37	—	0
212.121.154.38	cpede_str066081.ia.colt.net	0
212.121.154.39	—	0
212.121.154.40	—	0
212.121.154.41	—	0
212.121.154.42	cpede_ber000074.ia.colt.net	0
212.121.154.43	—	0
212.121.154.44	—	0
212.121.154.45	—	0
212.121.154.46	cpede_muc000993.ia.colt.net	0
212.121.154.47	—	0
212.121.154.48	—	0
212.121.154.49	—	0
212.121.154.50	—	0
212.121.154.51	—	0
212.121.154.52	—	0
212.121.154.53	—	0
212.121.154.54	—	0
212.121.154.55	—	0
212.121.154.56	pw-ether105.3-lo0-sr1.fra.router.colt.net	0
212.121.154.57	lo0-fra-ic-001560.ia.colt.net	0
212.121.154.58	pw-ether468.82030-lo0-sr1.fra.router.colt.net	0
212.121.154.59	lo0-hdb-ic-000002.ia.colt.net	0
212.121.154.60	—	0
212.121.154.61	—	0
212.121.154.62	—	0
212.121.154.63	—	0
212.121.154.64	—	0
212.121.154.65	—	0
212.121.154.66	cpede_ham000497.ia.colt.net	0
212.121.154.67	—	0
212.121.154.68	—	0
212.121.154.69	—	0
212.121.154.70	cpede_fra065486.ia.colt.net	0
212.121.154.71	—	0
212.121.154.72	—	0
212.121.154.73	—	0
212.121.154.74	—	0
212.121.154.75	—	0
212.121.154.76	—	0
212.121.154.77	—	0
212.121.154.78	cpede_fra001510.ia.colt.net	0
212.121.154.79	—	0
212.121.154.80	—	0
212.121.154.81	ar2.fra.de.colt.net	0
212.121.154.82	cpede_ham000643.ia.colt.net	0
212.121.154.83	—	0
212.121.154.84	—	0
212.121.154.85	ar2.muc.de.colt.net	0
212.121.154.86	—	0
212.121.154.87	—	0
212.121.154.88	—	0
212.121.154.89	pw-ether546.42030-lo0-sr2.fra.router.colt.net	0
212.121.154.90	cpede_ber001062.ia.colt.net	0
212.121.154.91	—	0
212.121.154.92	—	0
212.121.154.93	—	0
212.121.154.94	inxs.customer.muc.de.colt.net	0
212.121.154.95	—	0
212.121.154.96	—	0
212.121.154.97	—	0
212.121.154.98	ir1.ber.de.colt.net	0
212.121.154.99	—	0
212.121.154.100	—	0
212.121.154.101	—	0
212.121.154.102	ir2.ber.de.colt.net	0
212.121.154.103	—	0
212.121.154.104	—	0
212.121.154.105	ir1.ber.de.colt.net	0
212.121.154.106	cpede_dus009853.ia.colt.net	0
212.121.154.107	—	0
212.121.154.108	—	0
212.121.154.109	ar1.fra.de.colt.net	0
212.121.154.110	as3.fra.de.colt.net	0
212.121.154.111	—	0
212.121.154.112	—	0
212.121.154.113	—	0
212.121.154.114	—	0
212.121.154.115	—	0
212.121.154.116	—	0
212.121.154.117	—	0
212.121.154.118	—	0
212.121.154.119	—	0
212.121.154.120	—	0
212.121.154.121	—	0
212.121.154.122	cpede_fra001243.ia.colt.net	0
212.121.154.123	—	0
212.121.154.124	—	0
212.121.154.125	—	0
212.121.154.126	cpede_ger041441.ia.colt.net	0
212.121.154.127	—	0
212.121.154.128	—	0
212.121.154.129	—	0
212.121.154.130	cpede_ger000127.ia.colt.net	0
212.121.154.131	—	0
212.121.154.132	—	0
212.121.154.133	—	0
212.121.154.134	cpede_ger000115.ia.colt.net	0
212.121.154.135	—	0
212.121.154.136	—	0
212.121.154.137	—	0
212.121.154.138	—	0
212.121.154.139	—	0
212.121.154.140	—	0
212.121.154.141	—	0
212.121.154.142	—	0
212.121.154.143	—	0
212.121.154.144	—	0
212.121.154.145	—	0
212.121.154.146	cpede_str000386.ia.colt.net	0
212.121.154.147	—	0
212.121.154.148	pw-ether259.3-lo0-sr2.fra.router.colt.net	0
212.121.154.149	lo0-fra-ic-001514.ia.colt.net	0
212.121.154.150	cpede_fra000514.ia.colt.net	0
212.121.154.151	—	0
212.121.154.152	—	0
212.121.154.153	—	0
212.121.154.154	cpede_muc000983.ia.colt.net	0
212.121.154.155	—	0
212.121.154.156	—	0
212.121.154.157	—	0
212.121.154.158	—	0
212.121.154.159	—	0
212.121.154.160	—	0
212.121.154.161	—	0
212.121.154.162	—	0
212.121.154.163	—	0
212.121.154.164	—	0
212.121.154.165	—	0
212.121.154.166	cpede_ber000914.ia.colt.net	0
212.121.154.167	—	0
212.121.154.168	—	0
212.121.154.169	—	0
212.121.154.170	cpede_dus009851.ia.colt.net	0
212.121.154.171	—	0
212.121.154.172	—	0
212.121.154.173	ir1.fra.de.colt.net	0
212.121.154.174	ir2.fra.de.colt.net	0
212.121.154.175	—	0
212.121.154.176	—	0
212.121.154.177	—	0
212.121.154.178	cpede_muc000957.ia.colt.net	0
212.121.154.179	—	0
212.121.154.180	—	0
212.121.154.181	—	0
212.121.154.182	cpede_fra001508.ia.colt.net	0
212.121.154.183	—	0
212.121.154.184	—	0
212.121.154.185	—	0
212.121.154.186	cpede_ber000484.ia.colt.net	0
212.121.154.187	—	0
212.121.154.188	—	0
212.121.154.189	—	0
212.121.154.190	cpede_str001136.ia.colt.net	0
212.121.154.191	—	0
212.121.154.192	—	0
212.121.154.193	—	0
212.121.154.194	k-gw2.k.net.dtag.de	0
212.121.154.195	—	0
212.121.154.196	—	0
212.121.154.197	—	0
212.121.154.198	cpede_ger000129.ia.colt.net	0
212.121.154.199	—	0
212.121.154.200	—	0
212.121.154.201	—	0
212.121.154.202	cpede_ber001410.ia.colt.net	0
212.121.154.203	—	0
212.121.154.204	—	0
212.121.154.205	—	0
212.121.154.206	cpede_ger000132.ia.colt.net	0
212.121.154.207	—	0
212.121.154.208	—	0
212.121.154.209	—	0
212.121.154.210	cpede_mhg000026.ia.colt.net	0
212.121.154.211	—	0
212.121.154.212	—	0
212.121.154.213	—	0
212.121.154.214	cpede_fra001512.ia.colt.net	0
212.121.154.215	—	0
212.121.154.216	—	0
212.121.154.217	—	0
212.121.154.218	cpede_ber001973.ia.colt.net	0
212.121.154.219	—	0
212.121.154.220	—	0
212.121.154.221	—	0
212.121.154.222	cpede_str065348.ia.colt.net	0
212.121.154.223	—	0
212.121.154.224	—	0
212.121.154.225	—	0
212.121.154.226	cpefr_mrs059005.ia.colt.net	0
212.121.154.227	—	0
212.121.154.228	—	0
212.121.154.229	—	0
212.121.154.230	cpede_fra001179.ia.colt.net	0
212.121.154.231	—	0
212.121.154.232	pw-ether170.2-lo0-sr2.fra.router.colt.net	0
212.121.154.233	lo0-fra-ic-001467.ia.colt.net	0
212.121.154.234	pw-ether233.2-lo0-sr1.fra.router.colt.net	0
212.121.154.235	lo0-fra-ic-001468.ia.colt.net	0
212.121.154.236	—	0
212.121.154.237	ar4.fra.de.colt.net	0
212.121.154.238	—	0
212.121.154.239	—	0
212.121.154.240	—	0
212.121.154.241	—	0
212.121.154.242	cpede_dus000535.ia.colt.net	0
212.121.154.243	—	0
212.121.154.244	—	0
212.121.154.245	ar3.fra.de.colt.net	0
212.121.154.246	ag_dialout.fra.de.colt.net	0
212.121.154.247	—	0
212.121.154.248	—	0
212.121.154.249	ar2.fra.de.colt.net	0
212.121.154.250	—	0
212.121.154.251	—	0
212.121.154.252	—	0
212.121.154.253	—	0
212.121.154.254	cpede_ber001696.ia.colt.net	0
212.121.154.255	—	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 212.121.154.137

traceroute to 212.121.154.137 (212.121.154.137): 64 hops max, 52 byte packets

3 [AS201011] 81.95.9.44 0.411 ms

4 *

5 [AS8220] 212.121.154.137 4.225 ms

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On March 6, 2026