Summary

ASN	AS174 Cogent Communications, LLC
BGP	38.0.0.0/8
IPs with RDNS	45
Hosted Domains	0
Pingable IPs	57
Router IPs	2


38.140.21.0	—	0
38.140.21.1	gi100-0-0-7.nr61.b001411-0.jfk02.atlas.cogentco.com	0
38.140.21.2	—	0
38.140.21.3	—	0
38.140.21.4	—	0
38.140.21.5	—	0
38.140.21.6	—	0
38.140.21.7	—	0
38.140.21.8	—	0
38.140.21.9	gi0-0-0-1.nr01.b002740-0.jfk02.atlas.cogentco.com	0
38.140.21.10	—	0
38.140.21.11	—	0
38.140.21.12	—	0
38.140.21.13	—	0
38.140.21.14	—	0
38.140.21.15	—	0
38.140.21.16	—	0
38.140.21.17	gi0-0-0-41.206.nr01.b001603-0.jfk01.atlas.cogentco.com	0
38.140.21.18	—	0
38.140.21.19	—	0
38.140.21.20	—	0
38.140.21.21	—	0
38.140.21.22	—	0
38.140.21.23	—	0
38.140.21.24	—	0
38.140.21.25	gi0-0-0-16.nr01.b001168-0.jfk02.atlas.cogentco.com	0
38.140.21.26	—	0
38.140.21.27	—	0
38.140.21.28	—	0
38.140.21.29	te0-1-0-3.233.rcr22.b001362-2.jfk01.atlas.cogentco.com	0
38.140.21.30	—	0
38.140.21.31	—	0
38.140.21.32	—	0
38.140.21.33	gi0-0-0-16.401.nr11.b001173-0.jfk02.atlas.cogentco.com	0
38.140.21.34	—	0
38.140.21.35	—	0
38.140.21.36	—	0
38.140.21.37	—	0
38.140.21.38	—	0
38.140.21.39	—	0
38.140.21.40	—	0
38.140.21.41	gi0-0-0-13.nr01.b005072-0.jfk02.atlas.cogentco.com	0
38.140.21.42	—	0
38.140.21.43	—	0
38.140.21.44	—	0
38.140.21.45	—	0
38.140.21.46	—	0
38.140.21.47	—	0
38.140.21.48	—	0
38.140.21.49	gi0-0-0-36.nr01.b000934-0.jfk02.atlas.cogentco.com	0
38.140.21.50	—	0
38.140.21.51	—	0
38.140.21.52	—	0
38.140.21.53	—	0
38.140.21.54	—	0
38.140.21.55	—	0
38.140.21.56	—	0
38.140.21.57	gi0-0-0-2.nr01.b001656-0.jfk02.atlas.cogentco.com	0
38.140.21.58	—	0
38.140.21.59	—	0
38.140.21.60	—	0
38.140.21.61	—	0
38.140.21.62	—	0
38.140.21.63	—	0
38.140.21.64	—	0
38.140.21.65	gi100-0-0-6.nr01.b069677-0.jfk02.atlas.cogentco.com	0
38.140.21.66	—	0
38.140.21.67	—	0
38.140.21.68	—	0
38.140.21.69	—	0
38.140.21.70	—	0
38.140.21.71	—	0
38.140.21.72	—	0
38.140.21.73	gi100-0-0-19.201.nr61.b001169-0.jfk02.atlas.cogentco.com	0
38.140.21.74	—	0
38.140.21.75	—	0
38.140.21.76	—	0
38.140.21.77	—	0
38.140.21.78	—	0
38.140.21.79	—	0
38.140.21.80	—	0
38.140.21.81	gi0-0-0-38.nr01.b001656-0.jfk02.atlas.cogentco.com	0
38.140.21.82	—	0
38.140.21.83	—	0
38.140.21.84	—	0
38.140.21.85	—	0
38.140.21.86	—	0
38.140.21.87	—	0
38.140.21.88	—	0
38.140.21.89	gi0-0-0-36.nr01.b001128-0.jfk02.atlas.cogentco.com	0
38.140.21.90	—	0
38.140.21.91	—	0
38.140.21.92	—	0
38.140.21.93	—	0
38.140.21.94	—	0
38.140.21.95	—	0
38.140.21.96	—	0
38.140.21.97	gi100-0-0-5.nr61.b001130-0.jfk02.atlas.cogentco.com	0
38.140.21.98	—	0
38.140.21.99	—	0
38.140.21.100	—	0
38.140.21.101	—	0
38.140.21.102	—	0
38.140.21.103	—	0
38.140.21.104	—	0
38.140.21.105	gi0-0-0-40.212.nr01.b001386-0.jfk02.atlas.cogentco.com	0
38.140.21.106	—	0
38.140.21.107	mail.widowskilawgroup.com	0
38.140.21.108	—	0
38.140.21.109	—	0
38.140.21.110	—	0
38.140.21.111	—	0
38.140.21.112	—	0
38.140.21.113	gi100-0-0-9.216.nr61.b001580-0.jfk02.atlas.cogentco.com	0
38.140.21.114	—	0
38.140.21.115	—	0
38.140.21.116	—	0
38.140.21.117	—	0
38.140.21.118	—	0
38.140.21.119	—	0
38.140.21.120	—	0
38.140.21.121	gi0-0-0-14.nr01.b002745-0.jfk02.atlas.cogentco.com	0
38.140.21.122	—	0
38.140.21.123	—	0
38.140.21.124	—	0
38.140.21.125	—	0
38.140.21.126	—	0
38.140.21.127	—	0
38.140.21.128	—	0
38.140.21.129	gi0-0-0-15.nr11.b000900-0.jfk02.atlas.cogentco.com	0
38.140.21.130	—	0
38.140.21.131	—	0
38.140.21.132	—	0
38.140.21.133	—	0
38.140.21.134	—	0
38.140.21.135	—	0
38.140.21.136	—	0
38.140.21.137	gi0-0-0-41.208.nr01.b000934-0.jfk02.atlas.cogentco.com	0
38.140.21.138	—	0
38.140.21.139	—	0
38.140.21.140	—	0
38.140.21.141	—	0
38.140.21.142	—	0
38.140.21.143	—	0
38.140.21.144	—	0
38.140.21.145	gi100-0-0-7.nr01.b001090-0.jfk02.atlas.cogentco.com	0
38.140.21.146	—	0
38.140.21.147	—	0
38.140.21.148	—	0
38.140.21.149	—	0
38.140.21.150	—	0
38.140.21.151	—	0
38.140.21.152	—	0
38.140.21.153	gi0-0-0-35.nr01.b001449-0.jfk02.atlas.cogentco.com	0
38.140.21.154	mariacarvainisagency.com	0
38.140.21.155	—	0
38.140.21.156	—	0
38.140.21.157	—	0
38.140.21.158	—	0
38.140.21.159	—	0
38.140.21.160	—	0
38.140.21.161	gi0-0-0-15.nr11.b001118-0.jfk02.atlas.cogentco.com	0
38.140.21.162	—	0
38.140.21.163	—	0
38.140.21.164	—	0
38.140.21.165	—	0
38.140.21.166	—	0
38.140.21.167	—	0
38.140.21.168	—	0
38.140.21.169	gi0-0-0-26.nr01.b002745-0.jfk02.atlas.cogentco.com	0
38.140.21.170	mail.citymeals.org	0
38.140.21.171	—	0
38.140.21.172	—	0
38.140.21.173	—	0
38.140.21.174	—	0
38.140.21.175	—	0
38.140.21.176	—	0
38.140.21.177	gi100-0-0-17.nr61.b001442-0.jfk02.atlas.cogentco.com	0
38.140.21.178	—	0
38.140.21.179	—	0
38.140.21.180	—	0
38.140.21.181	—	0
38.140.21.182	—	0
38.140.21.183	—	0
38.140.21.184	—	0
38.140.21.185	gi100-0-0-10.nr01.b001152-0.jfk02.atlas.cogentco.com	0
38.140.21.186	—	0
38.140.21.187	—	0
38.140.21.188	—	0
38.140.21.189	—	0
38.140.21.190	—	0
38.140.21.191	—	0
38.140.21.192	—	0
38.140.21.193	gi100-0-0-14.nr61.b000902-0.jfk01.atlas.cogentco.com	0
38.140.21.194	—	0
38.140.21.195	—	0
38.140.21.196	—	0
38.140.21.197	—	0
38.140.21.198	—	0
38.140.21.199	—	0
38.140.21.200	—	0
38.140.21.201	gi100-0-0-18.nr01.b001152-0.jfk02.atlas.cogentco.com	0
38.140.21.202	smtp.airlinepros.com	0
38.140.21.203	mail2.airlinepros.com	0
38.140.21.204	remote.airlinepros.com	0
38.140.21.205	smtp.groupsystemstravel.com	0
38.140.21.206	fw.airlinepros.com	0
38.140.21.207	—	0
38.140.21.208	—	0
38.140.21.209	gi100-0-0-11.nr01.b001152-0.jfk02.atlas.cogentco.com	0
38.140.21.210	—	0
38.140.21.211	—	0
38.140.21.212	—	0
38.140.21.213	—	0
38.140.21.214	—	0
38.140.21.215	—	0
38.140.21.216	—	0
38.140.21.217	te0-0-2-2.1029.nr11.b001557-0.jfk02.atlas.cogentco.com	0
38.140.21.218	—	0
38.140.21.219	—	0
38.140.21.220	—	0
38.140.21.221	—	0
38.140.21.222	—	0
38.140.21.223	—	0
38.140.21.224	gi100-0-0-7.nr61.b001441-0.jfk02.atlas.cogentco.com	0
38.140.21.225	gi0-0-0-16.203.nr11.b026224-0.jfk02.atlas.cogentco.com	0
38.140.21.226	hu0-0-0-20.nr01.b026191-1.jfk02.atlas.cogentco.com	0
38.140.21.227	—	0
38.140.21.228	—	0
38.140.21.229	gi100-0-0-14.nr61.b001129-0.jfk02.atlas.cogentco.com	0
38.140.21.230	—	0
38.140.21.231	—	0
38.140.21.232	—	0
38.140.21.233	gi100-0-0-7.nr61.b001129-0.jfk02.atlas.cogentco.com	0
38.140.21.234	—	0
38.140.21.235	—	0
38.140.21.236	—	0
38.140.21.237	—	0
38.140.21.238	—	0
38.140.21.239	—	0
38.140.21.240	—	0
38.140.21.241	gi0-0-0-3.nr01.b001160-0.jfk04.atlas.cogentco.com	0
38.140.21.242	—	0
38.140.21.243	—	0
38.140.21.244	—	0
38.140.21.245	—	0
38.140.21.246	—	0
38.140.21.247	—	0
38.140.21.248	—	0
38.140.21.249	gi100-0-0-4.nr61.b001411-0.jfk02.atlas.cogentco.com	0
38.140.21.250	—	0
38.140.21.251	—	0
38.140.21.252	—	0
38.140.21.253	gi0-0-0-19.212.nr11.b001134-0.jfk02.atlas.cogentco.com	0
38.140.21.254	—	0
38.140.21.255	—	0

Traceroute

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

traceroute -a -n -q1 -f4 38.140.21.241

traceroute to 38.140.21.241 (38.140.21.241): 64 hops max, 52 byte packets

4 [AS174] 154.54.173.58 1.375 ms

5 [AS174] 38.140.21.241 1.222 ms

Measurement taken from

IPinfo ProbeNet in New York City, US

On December 6th 2025