38.17.20.0/24 IP Range

Summary

ASN	AS174 Cogent Communications, LLC
BGP	38.0.0.0/8
IPs with RDNS	60
Hosted Domains	0
Pingable IPs	72
Router IPs	13


38.17.20.0	—	0
38.17.20.1	gi0-0-1-3.nr11.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.2	—	0
38.17.20.3	—	0
38.17.20.4	—	0
38.17.20.5	—	0
38.17.20.6	—	0
38.17.20.7	—	0
38.17.20.8	—	0
38.17.20.9	be5424.nr61.b020455-0.yyz04.atlas.cogentco.com	0
38.17.20.10	—	0
38.17.20.11	—	0
38.17.20.12	—	0
38.17.20.13	—	0
38.17.20.14	—	0
38.17.20.15	—	0
38.17.20.16	—	0
38.17.20.17	gi100-0-0-9.nr61.b011281-1.yyz04.atlas.cogentco.com	0
38.17.20.18	—	0
38.17.20.19	—	0
38.17.20.20	—	0
38.17.20.21	—	0
38.17.20.22	—	0
38.17.20.23	—	0
38.17.20.24	—	0
38.17.20.25	gi0-0-1-10.nr12.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.26	—	0
38.17.20.27	srv01.unionservers.ca	0
38.17.20.28	srv01.unionservers.ca	0
38.17.20.29	srv02.unionservers.ca	0
38.17.20.30	srv02.unionservers.ca	0
38.17.20.31	—	0
38.17.20.32	—	0
38.17.20.33	gi0-0-1-1.nr11.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.34	—	0
38.17.20.35	—	0
38.17.20.36	—	0
38.17.20.37	—	0
38.17.20.38	—	0
38.17.20.39	—	0
38.17.20.40	—	0
38.17.20.41	gi0-0-0-0.nr12.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.42	core2-tor-west.clearclouds.ca	0
38.17.20.43	rec2-tor-west.clearclouds.ca	0
38.17.20.44	qos2-tor-west.clearclouds.ca	0
38.17.20.45	—	0
38.17.20.46	sb.clearclouds.ca	0
38.17.20.47	—	0
38.17.20.48	te0-0-0-3.nr61.b030191-0.yyz04.atlas.cogentco.com	0
38.17.20.49	gi0-0-1-10.nr12.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.50	gi100-0-0-16.nr61.b011281-1.yyz04.atlas.cogentco.com	0
38.17.20.51	—	0
38.17.20.52	gi0-0-0-3.nr11.b030191-0.yyz04.atlas.cogentco.com	0
38.17.20.53	—	0
38.17.20.54	gi0-0-0-11.nr12.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.55	—	0
38.17.20.56	—	0
38.17.20.57	gi0-0-0-3.nr12.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.58	—	0
38.17.20.59	—	0
38.17.20.60	—	0
38.17.20.61	—	0
38.17.20.62	—	0
38.17.20.63	—	0
38.17.20.64	—	0
38.17.20.65	—	0
38.17.20.66	—	0
38.17.20.67	—	0
38.17.20.68	—	0
38.17.20.69	—	0
38.17.20.70	—	0
38.17.20.71	—	0
38.17.20.72	—	0
38.17.20.73	gi0-0-0-4.nr12.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.74	—	0
38.17.20.75	—	0
38.17.20.76	—	0
38.17.20.77	—	0
38.17.20.78	—	0
38.17.20.79	—	0
38.17.20.80	—	0
38.17.20.81	hu0-0-0-1.nr71.b011281-1.yyz04.atlas.cogentco.com	0
38.17.20.82	—	0
38.17.20.83	—	0
38.17.20.84	—	0
38.17.20.85	—	0
38.17.20.86	—	0
38.17.20.87	—	0
38.17.20.88	—	0
38.17.20.89	gi0-0-0-2.nr12.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.90	—	0
38.17.20.91	—	0
38.17.20.92	—	0
38.17.20.93	—	0
38.17.20.94	—	0
38.17.20.95	—	0
38.17.20.96	—	0
38.17.20.97	gi0-0-0-6.nr11.b020455-0.yyz04.atlas.cogentco.com	0
38.17.20.98	—	0
38.17.20.99	—	0
38.17.20.100	—	0
38.17.20.101	—	0
38.17.20.102	—	0
38.17.20.103	—	0
38.17.20.104	—	0
38.17.20.105	gi0-0-0-17.nr12.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.106	—	0
38.17.20.107	—	0
38.17.20.108	—	0
38.17.20.109	—	0
38.17.20.110	—	0
38.17.20.111	—	0
38.17.20.112	—	0
38.17.20.113	gi0-0-0-16.nr11.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.114	—	0
38.17.20.115	—	0
38.17.20.116	—	0
38.17.20.117	—	0
38.17.20.118	—	0
38.17.20.119	—	0
38.17.20.120	—	0
38.17.20.121	gi0-0-0-5.nr12.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.122	—	0
38.17.20.123	—	0
38.17.20.124	—	0
38.17.20.125	—	0
38.17.20.126	—	0
38.17.20.127	—	0
38.17.20.128	—	0
38.17.20.129	te0-3-0-9.rcr51.yyz04.atlas.cogentco.com	0
38.17.20.130	—	0
38.17.20.131	—	0
38.17.20.132	—	0
38.17.20.133	—	0
38.17.20.134	—	0
38.17.20.135	—	0
38.17.20.136	—	0
38.17.20.137	gi0-0-0-9.nr12.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.138	—	0
38.17.20.139	—	0
38.17.20.140	—	0
38.17.20.141	—	0
38.17.20.142	—	0
38.17.20.143	—	0
38.17.20.144	—	0
38.17.20.145	gi0-0-0-12.nr12.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.146	—	0
38.17.20.147	—	0
38.17.20.148	—	0
38.17.20.149	—	0
38.17.20.150	—	0
38.17.20.151	—	0
38.17.20.152	—	0
38.17.20.153	gi100-0-0-6.nr61.b011281-1.yyz04.atlas.cogentco.com	0
38.17.20.154	—	0
38.17.20.155	—	0
38.17.20.156	—	0
38.17.20.157	—	0
38.17.20.158	—	0
38.17.20.159	—	0
38.17.20.160	gi0-0-0-8.nr12.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.161	gi0-0-0-18.213.nr11.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.162	te0-3-0-1.rcr51.yyz04.atlas.cogentco.com	0
38.17.20.163	—	0
38.17.20.164	gi0-0-1-5.nr12.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.165	—	0
38.17.20.166	gi100-0-0-17.nr61.b011281-1.yyz04.atlas.cogentco.com	0
38.17.20.167	—	0
38.17.20.168	—	0
38.17.20.169	gi0-0-0-10.nr12.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.170	—	0
38.17.20.171	—	0
38.17.20.172	—	0
38.17.20.173	—	0
38.17.20.174	—	0
38.17.20.175	—	0
38.17.20.176	—	0
38.17.20.177	te0-0-0-0.nr61.b010969-0.yyz04.atlas.cogentco.com	0
38.17.20.178	—	0
38.17.20.179	—	0
38.17.20.180	—	0
38.17.20.181	—	0
38.17.20.182	—	0
38.17.20.183	—	0
38.17.20.184	—	0
38.17.20.185	be5094.rcr51.yyz04.atlas.cogentco.com	0
38.17.20.186	—	0
38.17.20.187	—	0
38.17.20.188	—	0
38.17.20.189	—	0
38.17.20.190	—	0
38.17.20.191	—	0
38.17.20.192	te0-0-0-2.nr61.b040995-0.yyz04.atlas.cogentco.com	0
38.17.20.193	gi0-0-0-19.201.nr11.b020455-0.yyz04.atlas.cogentco.com	0
38.17.20.194	gi0-0-0-5.nr11.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.195	—	0
38.17.20.196	gi0-0-0-6.nr11.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.197	—	0
38.17.20.198	te0-0-0-1.nr61.b011281-1.yyz04.atlas.cogentco.com	0
38.17.20.199	—	0
38.17.20.200	—	0
38.17.20.201	gi0-0-0-7.nr11.b020455-0.yyz04.atlas.cogentco.com	0
38.17.20.202	—	0
38.17.20.203	—	0
38.17.20.204	—	0
38.17.20.205	—	0
38.17.20.206	—	0
38.17.20.207	—	0
38.17.20.208	—	0
38.17.20.209	te0-3-0-4.rcr51.yyz04.atlas.cogentco.com	0
38.17.20.210	—	0
38.17.20.211	—	0
38.17.20.212	—	0
38.17.20.213	—	0
38.17.20.214	—	0
38.17.20.215	—	0
38.17.20.216	—	0
38.17.20.217	te0-3-1-14.rcr51.yyz04.atlas.cogentco.com	0
38.17.20.218	gw.comprehensive.sulutions	0
38.17.20.219	—	0
38.17.20.220	mx.smartent.ca	0
38.17.20.221	mx2.smartent.ca	0
38.17.20.222	mail.smartent.ca	0
38.17.20.223	—	0
38.17.20.224	—	0
38.17.20.225	gi0-0-0-19.nr12.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.226	—	0
38.17.20.227	—	0
38.17.20.228	—	0
38.17.20.229	—	0
38.17.20.230	—	0
38.17.20.231	—	0
38.17.20.232	—	0
38.17.20.233	te0-3-0-19.rcr51.yyz04.atlas.cogentco.com	0
38.17.20.234	r2.yyz01.as63447.net	0
38.17.20.235	38-17-20-235.as63447.net	0
38.17.20.236	38-17-20-236.as63447.net	0
38.17.20.237	38-17-20-237.as63447.net	0
38.17.20.238	38-17-20-238.as63447.net	0
38.17.20.239	—	0
38.17.20.240	—	0
38.17.20.241	gi0-0-0-19.201.nr11.b011274-1.yyz04.atlas.cogentco.com	0
38.17.20.242	—	0
38.17.20.243	—	0
38.17.20.244	—	0
38.17.20.245	—	0
38.17.20.246	—	0
38.17.20.247	—	0
38.17.20.248	—	0
38.17.20.249	te0-2-0-12.rcr51.yyz04.atlas.cogentco.com	0
38.17.20.250	—	0
38.17.20.251	—	0
38.17.20.252	—	0
38.17.20.253	—	0
38.17.20.254	—	0
38.17.20.255	—	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 38.17.20.237

traceroute to 38.17.20.237 (38.17.20.237): 64 hops max, 52 byte packets

3 [AS174] 154.54.81.42 1.411 ms

4 [AS174] 38.17.20.237 1.067 ms

Measurement taken from

IPinfo ProbeNet in Toronto, CA

On October 9th 2025