Summary

ASN	AS174 Cogent Communications, LLC
BGP	38.0.0.0/8
IPs with RDNS	63
Hosted Domains	0
Pingable IPs	11
Router IPs	5


38.104.141.0	—	0
38.104.141.1	se1-0-2-0.ca01.sjc02.atlas.cogentco.com	0
38.104.141.2	—	0
38.104.141.3	—	0
38.104.141.4	—	0
38.104.141.5	se5-1-2-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.6	—	0
38.104.141.7	—	0
38.104.141.8	—	0
38.104.141.9	—	0
38.104.141.10	—	0
38.104.141.11	—	0
38.104.141.12	—	0
38.104.141.13	fa0-1.na01.b003123-1.sjc04.atlas.cogentco.com	0
38.104.141.14	—	0
38.104.141.15	—	0
38.104.141.16	—	0
38.104.141.17	se5-0-2-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.18	—	0
38.104.141.19	—	0
38.104.141.20	—	0
38.104.141.21	se1-1-1-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.22	—	0
38.104.141.23	—	0
38.104.141.24	—	0
38.104.141.25	se5-1-12-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.26	—	0
38.104.141.27	—	0
38.104.141.28	—	0
38.104.141.29	se5-1-11-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.30	—	0
38.104.141.31	—	0
38.104.141.32	—	0
38.104.141.33	gi0-0-0-19.203.agr11.sjc04.atlas.cogentco.com	0
38.104.141.34	—	0
38.104.141.35	—	0
38.104.141.36	—	0
38.104.141.37	se5-1-26-0.ca01.sfo01.atlas.cogentco.com	0
38.104.141.38	—	0
38.104.141.39	—	0
38.104.141.40	—	0
38.104.141.41	—	0
38.104.141.42	—	0
38.104.141.43	—	0
38.104.141.44	—	0
38.104.141.45	—	0
38.104.141.46	—	0
38.104.141.47	—	0
38.104.141.48	—	0
38.104.141.49	se5-1-28-0.ca01.sfo01.atlas.cogentco.com	0
38.104.141.50	—	0
38.104.141.51	—	0
38.104.141.52	—	0
38.104.141.53	fa0-14.na02.b003123-1.sjc04.atlas.cogentco.com	0
38.104.141.54	—	0
38.104.141.55	—	0
38.104.141.56	—	0
38.104.141.57	se5-1-9-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.58	—	0
38.104.141.59	—	0
38.104.141.60	—	0
38.104.141.61	se5-1-11-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.62	—	0
38.104.141.63	—	0
38.104.141.64	—	0
38.104.141.65	gi0-0-1-19.204.agr12.sjc04.atlas.cogentco.com	0
38.104.141.66	—	0
38.104.141.67	—	0
38.104.141.68	—	0
38.104.141.69	se5-1-7-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.70	—	0
38.104.141.71	—	0
38.104.141.72	—	0
38.104.141.73	gi0-0-0-4.agr11.sjc04.atlas.cogentco.com	0
38.104.141.74	—	0
38.104.141.75	—	0
38.104.141.76	—	0
38.104.141.77	se1-1-8-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.78	—	0
38.104.141.79	—	0
38.104.141.80	—	0
38.104.141.81	be8496.ccr31.sjc04.atlas.cogentco.com	0
38.104.141.82	—	0
38.104.141.83	—	0
38.104.141.84	—	0
38.104.141.85	se3-1-1-0.ca01.sfo01.atlas.cogentco.com	0
38.104.141.86	—	0
38.104.141.87	—	0
38.104.141.88	—	0
38.104.141.89	hu0-4-0-6.ccr31.sjc04.atlas.cogentco.com	0
38.104.141.90	—	0
38.104.141.91	—	0
38.104.141.92	—	0
38.104.141.93	se3-1-13-0.ca01.sfo01.atlas.cogentco.com	0
38.104.141.94	—	0
38.104.141.95	—	0
38.104.141.96	—	0
38.104.141.97	te0-0-1-18.ccr31.sjc04.atlas.cogentco.com	0
38.104.141.98	tenge1-2-cr01-rnchcrdv-smf.unwiredltd.net	0
38.104.141.99	—	0
38.104.141.100	—	0
38.104.141.101	fa0-2.na02.b003123-1.sjc04.atlas.cogentco.com	0
38.104.141.102	hq.cloudera.com	0
38.104.141.103	—	0
38.104.141.104	—	0
38.104.141.105	te0-0-2-2.1624.agr12.sjc04.atlas.cogentco.com	0
38.104.141.106	—	0
38.104.141.107	—	0
38.104.141.108	—	0
38.104.141.109	se1-1-17-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.110	—	0
38.104.141.111	—	0
38.104.141.112	—	0
38.104.141.113	gi0-0-0-6.agr12.sjc04.atlas.cogentco.com	0
38.104.141.114	—	0
38.104.141.115	—	0
38.104.141.116	—	0
38.104.141.117	se5-1-19-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.118	—	0
38.104.141.119	—	0
38.104.141.120	—	0
38.104.141.121	gi3-36.mag01.sjc04.atlas.cogentco.com	0
38.104.141.122	—	0
38.104.141.123	—	0
38.104.141.124	—	0
38.104.141.125	gi1-4.mag01.sjc04.atlas.cogentco.com	0
38.104.141.126	—	0
38.104.141.127	—	0
38.104.141.128	—	0
38.104.141.129	gi0-0-1-0.agr12.sjc04.atlas.cogentco.com	0
38.104.141.130	—	0
38.104.141.131	—	0
38.104.141.132	—	0
38.104.141.133	gi1-8.mag01.sjc04.atlas.cogentco.com	0
38.104.141.134	—	0
38.104.141.135	—	0
38.104.141.136	—	0
38.104.141.137	se5-1-12-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.138	—	0
38.104.141.139	—	0
38.104.141.140	—	0
38.104.141.141	se5-1-20-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.142	—	0
38.104.141.143	—	0
38.104.141.144	—	0
38.104.141.145	te0-0-0-12.ccr31.sjc04.atlas.cogentco.com	0
38.104.141.146	—	0
38.104.141.147	—	0
38.104.141.148	se5-1-23.ca01.sjc04.atlas.cogentco.com	0
38.104.141.149	be4057.ccr21.sjc04.atlas.cogentco.com	0
38.104.141.150	—	0
38.104.141.151	—	0
38.104.141.152	—	0
38.104.141.153	gi0-0-0-8.agr11.sjc04.atlas.cogentco.com	0
38.104.141.154	—	0
38.104.141.155	—	0
38.104.141.156	—	0
38.104.141.157	—	0
38.104.141.158	—	0
38.104.141.159	—	0
38.104.141.160	—	0
38.104.141.161	be4075.ccr21.sjc04.atlas.cogentco.com	0
38.104.141.162	—	0
38.104.141.163	—	0
38.104.141.164	—	0
38.104.141.165	gi0-0-0-2.agr11.sjc04.atlas.cogentco.com	0
38.104.141.166	—	0
38.104.141.167	—	0
38.104.141.168	—	0
38.104.141.169	gi0-0-0-3.agr11.sjc04.atlas.cogentco.com	0
38.104.141.170	—	0
38.104.141.171	—	0
38.104.141.172	—	0
38.104.141.173	se5-1-5-0.ca01.sfo01.atlas.cogentco.com	0
38.104.141.174	—	0
38.104.141.175	—	0
38.104.141.176	—	0
38.104.141.177	se5-1-27-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.178	—	0
38.104.141.179	—	0
38.104.141.180	—	0
38.104.141.181	se5-1-23-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.182	—	0
38.104.141.183	—	0
38.104.141.184	—	0
38.104.141.185	se5-1-15-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.186	—	0
38.104.141.187	—	0
38.104.141.188	—	0
38.104.141.189	se5-1-25-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.190	—	0
38.104.141.191	—	0
38.104.141.192	—	0
38.104.141.193	gi0-0-0-1.nr01.b007374-2.sjc04.atlas.cogentco.com	0
38.104.141.194	—	0
38.104.141.195	—	0
38.104.141.196	—	0
38.104.141.197	se5-1-24-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.198	—	0
38.104.141.199	—	0
38.104.141.200	—	0
38.104.141.201	be4080.ccr31.sjc04.atlas.cogentco.com	0
38.104.141.202	—	0
38.104.141.203	—	0
38.104.141.204	—	0
38.104.141.205	se1-1-2-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.206	—	0
38.104.141.207	—	0
38.104.141.208	—	0
38.104.141.209	se1-1-26-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.210	—	0
38.104.141.211	—	0
38.104.141.212	—	0
38.104.141.213	se1-1-5-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.214	—	0
38.104.141.215	—	0
38.104.141.216	—	0
38.104.141.217	se1-1-11-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.218	—	0
38.104.141.219	—	0
38.104.141.220	—	0
38.104.141.221	se1-1-6-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.222	—	0
38.104.141.223	—	0
38.104.141.224	—	0
38.104.141.225	te0-0-2-2.1526.agr12.sjc04.atlas.cogentco.com	0
38.104.141.226	—	0
38.104.141.227	—	0
38.104.141.228	—	0
38.104.141.229	te0-7-0-6.ccr21.sjc04.atlas.cogentco.com	0
38.104.141.230	—	0
38.104.141.231	—	0
38.104.141.232	—	0
38.104.141.233	se5-1-6-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.234	—	0
38.104.141.235	—	0
38.104.141.236	—	0
38.104.141.237	be4089.ccr31.sjc04.atlas.cogentco.com	0
38.104.141.238	—	0
38.104.141.239	—	0
38.104.141.240	—	0
38.104.141.241	te0-3-1-7.2527.ccr22.sfo01.atlas.cogentco.com	0
38.104.141.242	—	0
38.104.141.243	—	0
38.104.141.244	—	0
38.104.141.245	te0-0-0-7.ccr21.sjc04.atlas.cogentco.com	0
38.104.141.246	—	0
38.104.141.247	—	0
38.104.141.248	—	0
38.104.141.249	te0-0-0-9.ccr31.sjc04.atlas.cogentco.com	0
38.104.141.250	—	0
38.104.141.251	—	0
38.104.141.252	—	0
38.104.141.253	se1-1-10-0.ca01.sjc04.atlas.cogentco.com	0
38.104.141.254	—	0
38.104.141.255	—	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 38.104.141.145

traceroute to 38.104.141.145 (38.104.141.145): 64 hops max, 52 byte packets

3 [AS6453] 216.6.52.68 1.107 ms

4 *

5 *

6 [AS174] 38.104.141.145 1.43 ms

Measurement taken from

IPinfo ProbeNet in San Jose, US

On December 28th 2025