38.100.138.0/24 IP Range

Summary

ASN	AS174 Cogent Communications, LLC
BGP	38.0.0.0/8
IPs with RDNS	54
Hosted Domains	0
Pingable IPs	49
Router IPs	1


38.100.138.0	—	0
38.100.138.1	te0-0-0-1.1100.agr61.dca04.atlas.cogentco.com	0
38.100.138.2	—	0
38.100.138.3	—	0
38.100.138.4	—	0
38.100.138.5	—	0
38.100.138.6	—	0
38.100.138.7	—	0
38.100.138.8	—	0
38.100.138.9	—	0
38.100.138.10	—	0
38.100.138.11	—	0
38.100.138.12	mail.fascorpinc.com	0
38.100.138.13	—	0
38.100.138.14	—	0
38.100.138.15	—	0
38.100.138.16	—	0
38.100.138.17	—	0
38.100.138.18	—	0
38.100.138.19	—	0
38.100.138.20	—	0
38.100.138.21	—	0
38.100.138.22	—	0
38.100.138.23	—	0
38.100.138.24	—	0
38.100.138.25	—	0
38.100.138.26	—	0
38.100.138.27	—	0
38.100.138.28	—	0
38.100.138.29	—	0
38.100.138.30	—	0
38.100.138.31	—	0
38.100.138.32	—	0
38.100.138.33	—	0
38.100.138.34	—	0
38.100.138.35	—	0
38.100.138.36	—	0
38.100.138.37	—	0
38.100.138.38	mail.oissolutions.com	0
38.100.138.39	—	0
38.100.138.40	—	0
38.100.138.41	—	0
38.100.138.42	—	0
38.100.138.43	—	0
38.100.138.44	—	0
38.100.138.45	—	0
38.100.138.46	—	0
38.100.138.47	—	0
38.100.138.48	—	0
38.100.138.49	—	0
38.100.138.50	—	0
38.100.138.51	—	0
38.100.138.52	—	0
38.100.138.53	—	0
38.100.138.54	—	0
38.100.138.55	—	0
38.100.138.56	—	0
38.100.138.57	—	0
38.100.138.58	—	0
38.100.138.59	—	0
38.100.138.60	—	0
38.100.138.61	—	0
38.100.138.62	—	0
38.100.138.63	—	0
38.100.138.64	dc4.ruckus.net	0
38.100.138.65	—	0
38.100.138.66	—	0
38.100.138.67	—	0
38.100.138.68	smtp.appanet.org	0
38.100.138.69	—	0
38.100.138.70	—	0
38.100.138.71	—	0
38.100.138.72	—	0
38.100.138.73	—	0
38.100.138.74	—	0
38.100.138.75	mx1.appanet.org	0
38.100.138.76	—	0
38.100.138.77	—	0
38.100.138.78	—	0
38.100.138.79	—	0
38.100.138.80	—	0
38.100.138.81	—	0
38.100.138.82	—	0
38.100.138.83	—	0
38.100.138.84	—	0
38.100.138.85	—	0
38.100.138.86	—	0
38.100.138.87	—	0
38.100.138.88	—	0
38.100.138.89	—	0
38.100.138.90	—	0
38.100.138.91	—	0
38.100.138.92	—	0
38.100.138.93	—	0
38.100.138.94	—	0
38.100.138.95	—	0
38.100.138.96	—	0
38.100.138.97	gi0-0-1-15.206.agr12.iad03.atlas.cogentco.com	0
38.100.138.98	—	0
38.100.138.99	—	0
38.100.138.100	—	0
38.100.138.101	—	0
38.100.138.102	—	0
38.100.138.103	—	0
38.100.138.104	—	0
38.100.138.105	vpn.beconet.com	0
38.100.138.106	mail.beconet.com	0
38.100.138.107	exchange.beconet.com	0
38.100.138.108	spam.beconet.com	0
38.100.138.109	—	0
38.100.138.110	—	0
38.100.138.111	—	0
38.100.138.112	—	0
38.100.138.113	—	0
38.100.138.114	—	0
38.100.138.115	vpn.willowasset.com	0
38.100.138.116	mail.willowasset.com	0
38.100.138.117	exchange.willowasset.com	0
38.100.138.118	spam.willowasset.com	0
38.100.138.119	—	0
38.100.138.120	—	0
38.100.138.121	—	0
38.100.138.122	—	0
38.100.138.123	—	0
38.100.138.124	—	0
38.100.138.125	—	0
38.100.138.126	—	0
38.100.138.127	—	0
38.100.138.128	—	0
38.100.138.129	gi0-0-1-14.nr11.b003353-1.dca04.atlas.cogentco.com	0
38.100.138.130	ns3.dona.net	0
38.100.138.131	—	0
38.100.138.132	—	0
38.100.138.133	—	0
38.100.138.134	—	0
38.100.138.135	—	0
38.100.138.136	—	0
38.100.138.137	—	0
38.100.138.138	—	0
38.100.138.139	—	0
38.100.138.140	medusa.handle.net	0
38.100.138.141	—	0
38.100.138.142	vmware-cogent.handle.net	0
38.100.138.143	repost.cnri.net	0
38.100.138.144	ns.handle.net	0
38.100.138.145	—	0
38.100.138.146	—	0
38.100.138.147	—	0
38.100.138.148	—	0
38.100.138.149	—	0
38.100.138.150	ehs7.handle.net	0
38.100.138.151	—	0
38.100.138.152	—	0
38.100.138.153	cnri-ars.cnri.reston.va.us	0
38.100.138.154	handledns.handle.net	0
38.100.138.155	—	0
38.100.138.156	—	0
38.100.138.157	—	0
38.100.138.158	—	0
38.100.138.159	—	0
38.100.138.160	—	0
38.100.138.161	unitrends-herndon.cnri.reston.va.us	0
38.100.138.162	—	0
38.100.138.163	—	0
38.100.138.164	—	0
38.100.138.165	—	0
38.100.138.166	—	0
38.100.138.167	—	0
38.100.138.168	—	0
38.100.138.169	vmware-cogent1.handle.net	0
38.100.138.170	vmware-cogent2.cnri.reston.va.us	0
38.100.138.171	sting.mems-exchange.org	0
38.100.138.172	ns-vienna.cnri.reston.va.us	0
38.100.138.173	maildrop.cnri.reston.va.us	0
38.100.138.174	—	0
38.100.138.175	openvpn-vienna.cnri.reston.va.us	0
38.100.138.176	—	0
38.100.138.177	—	0
38.100.138.178	—	0
38.100.138.179	—	0
38.100.138.180	mpa-cnri-cogent-a.dona.net	0
38.100.138.181	mpa-cnri-cogent-a-dmz.dona.net	0
38.100.138.182	mpa-cnri-cogent-a-ilo.dona.net	0
38.100.138.183	mpa-cnri-cogent-b.dona.net	0
38.100.138.184	mpa-cnri-cogent-b-dmz.dona.net	0
38.100.138.185	mpa-cnri-cogent-b-ilo.dona.net	0
38.100.138.186	—	0
38.100.138.187	—	0
38.100.138.188	—	0
38.100.138.189	—	0
38.100.138.190	shortdoi.doi.org	0
38.100.138.191	—	0
38.100.138.192	—	0
38.100.138.193	te0-0-2-1.548.agr12.iad02.atlas.cogentco.com	0
38.100.138.194	ethiopian-television-network.demarc.cogentco.com	0
38.100.138.195	live.ouretn.net	0
38.100.138.196	—	0
38.100.138.197	—	0
38.100.138.198	—	0
38.100.138.199	—	0
38.100.138.200	—	0
38.100.138.201	—	0
38.100.138.202	—	0
38.100.138.203	—	0
38.100.138.204	—	0
38.100.138.205	—	0
38.100.138.206	—	0
38.100.138.207	—	0
38.100.138.208	—	0
38.100.138.209	gi0-3-1-11.rcr21.iad03.atlas.cogentco.com	0
38.100.138.210	exchange.newshour.org	0
38.100.138.211	macneil-lehrer.com	0
38.100.138.212	macneil-lehrer.com	0
38.100.138.213	—	0
38.100.138.214	—	0
38.100.138.215	—	0
38.100.138.216	—	0
38.100.138.217	gi9-6.mpd01.iad03.atlas.cogentco.com	0
38.100.138.218	ethnic-tv-network.demarc.cogentco.com	0
38.100.138.219	—	0
38.100.138.220	—	0
38.100.138.221	—	0
38.100.138.222	—	0
38.100.138.223	—	0
38.100.138.224	—	0
38.100.138.225	gi0-0-0-1.2627.nr21.b003393-1.iad03.atlas.cogentco.com	0
38.100.138.226	mediasentry.demarc.cogentco.com	0
38.100.138.227	—	0
38.100.138.228	webmail3.groom.com	0
38.100.138.229	portal.groom.com	0
38.100.138.230	vpn.groom.com	0
38.100.138.231	—	0
38.100.138.232	—	0
38.100.138.233	fa0-11.na02.b003364-1.iad01.atlas.cogentco.com	0
38.100.138.234	—	0
38.100.138.235	—	0
38.100.138.236	—	0
38.100.138.237	—	0
38.100.138.238	—	0
38.100.138.239	—	0
38.100.138.240	—	0
38.100.138.241	gi0-0-0-3.3794.nr21.b003393-1.iad03.atlas.cogentco.com	0
38.100.138.242	—	0
38.100.138.243	—	0
38.100.138.244	—	0
38.100.138.245	—	0
38.100.138.246	—	0
38.100.138.247	—	0
38.100.138.248	—	0
38.100.138.249	—	0
38.100.138.250	—	0
38.100.138.251	—	0
38.100.138.252	—	0
38.100.138.253	—	0
38.100.138.254	—	0
38.100.138.255	—	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 38.100.138.193

traceroute to 38.100.138.193 (38.100.138.193): 64 hops max, 52 byte packets

3 [AS174] 38.32.206.151 1.336 ms

4 *

5 [AS174] 38.100.138.193 1.806 ms

Measurement taken from

IPinfo ProbeNet in Reston, US

On October 17th 2025