Summary

ASN	AS174 Cogent Communications, LLC
BGP	199.100.0.0/16
IPs with RDNS	56
Hosted Domains	0
Pingable IPs	46
Router IPs	17


199.100.4.0	—	0
199.100.4.1	be6753.ccr51.rio01.atlas.cogentco.com	0
199.100.4.2	—	0
199.100.4.3	—	0
199.100.4.4	—	0
199.100.4.5	—	0
199.100.4.6	—	0
199.100.4.7	—	0
199.100.4.8	—	0
199.100.4.9	te0-2-0-1.ccr51.rio01.atlas.cogentco.com	0
199.100.4.10	—	0
199.100.4.11	—	0
199.100.4.12	—	0
199.100.4.13	—	0
199.100.4.14	—	0
199.100.4.15	—	0
199.100.4.16	—	0
199.100.4.17	hu0-0-0-6.ccr51.rio01.atlas.cogentco.com	0
199.100.4.18	—	0
199.100.4.19	—	0
199.100.4.20	—	0
199.100.4.21	—	0
199.100.4.22	—	0
199.100.4.23	—	0
199.100.4.24	—	0
199.100.4.25	te0-0-0-4.agr62.rio01.atlas.cogentco.com	0
199.100.4.26	cogent.rjo-ex2-edge.as272786.net	0
199.100.4.27	—	0
199.100.4.28	—	0
199.100.4.29	—	0
199.100.4.30	—	0
199.100.4.31	—	0
199.100.4.32	—	0
199.100.4.33	te0-2-0-9.ccr51.rio01.atlas.cogentco.com	0
199.100.4.34	—	0
199.100.4.35	—	0
199.100.4.36	—	0
199.100.4.37	—	0
199.100.4.38	—	0
199.100.4.39	—	0
199.100.4.40	—	0
199.100.4.41	te0-0-0-0.201.agr61.rio01.atlas.cogentco.com	0
199.100.4.42	—	0
199.100.4.43	—	0
199.100.4.44	—	0
199.100.4.45	te0-0-0-0.202.agr61.rio01.atlas.cogentco.com	0
199.100.4.46	—	0
199.100.4.47	—	0
199.100.4.48	—	0
199.100.4.49	gi0-0-0-4.nr11.b071420-0.rio01.atlas.cogentco.com	0
199.100.4.50	sjnet.demarc.cogentco.com	0
199.100.4.51	—	0
199.100.4.52	—	0
199.100.4.53	—	0
199.100.4.54	—	0
199.100.4.55	—	0
199.100.4.56	—	0
199.100.4.57	te0-0-0-1.agr61.rio01.atlas.cogentco.com	0
199.100.4.58	—	0
199.100.4.59	—	0
199.100.4.60	—	0
199.100.4.61	—	0
199.100.4.62	—	0
199.100.4.63	—	0
199.100.4.64	—	0
199.100.4.65	hu0-0-0-0.ccr51.rio01.atlas.cogentco.com	0
199.100.4.66	—	0
199.100.4.67	—	0
199.100.4.68	—	0
199.100.4.69	—	0
199.100.4.70	—	0
199.100.4.71	—	0
199.100.4.72	—	0
199.100.4.73	be6960.agr62.rio01.atlas.cogentco.com	0
199.100.4.74	—	0
199.100.4.75	—	0
199.100.4.76	—	0
199.100.4.77	—	0
199.100.4.78	—	0
199.100.4.79	—	0
199.100.4.80	—	0
199.100.4.81	te0-0-0-5.202.agr61.rio01.atlas.cogentco.com	0
199.100.4.82	—	0
199.100.4.83	—	0
199.100.4.84	—	0
199.100.4.85	—	0
199.100.4.86	—	0
199.100.4.87	—	0
199.100.4.88	—	0
199.100.4.89	te0-0-0-13.agr62.rio01.atlas.cogentco.com	0
199.100.4.90	—	0
199.100.4.91	—	0
199.100.4.92	—	0
199.100.4.93	—	0
199.100.4.94	—	0
199.100.4.95	—	0
199.100.4.96	—	0
199.100.4.97	be6362.ccr51.rio01.atlas.cogentco.com	0
199.100.4.98	—	0
199.100.4.99	—	0
199.100.4.100	—	0
199.100.4.101	—	0
199.100.4.102	—	0
199.100.4.103	—	0
199.100.4.104	be7716.ccr51.rio01.atlas.cogentco.com	0
199.100.4.105	te0-2-0-9.201.ccr51.rio01.atlas.cogentco.com	0
199.100.4.106	hu0-2-0-3.ccr51.rio01.atlas.cogentco.com	0
199.100.4.107	—	0
199.100.4.108	be7913.ccr51.rio01.atlas.cogentco.com	0
199.100.4.109	—	0
199.100.4.110	te0-0-0-1.agr62.rio01.atlas.cogentco.com	0
199.100.4.111	—	0
199.100.4.112	gi0-0-0-2.nr11.b071420-0.rio01.atlas.cogentco.com	0
199.100.4.113	hu0-1-0-1.ccr51.rio01.atlas.cogentco.com	0
199.100.4.114	hu0-0-0-2.ccr51.rio01.atlas.cogentco.com	0
199.100.4.115	—	0
199.100.4.116	te0-0-0-3.agr61.rio01.atlas.cogentco.com	0
199.100.4.117	—	0
199.100.4.118	te0-0-0-6.nr61.b071566-1.rio01.atlas.cogentco.com	0
199.100.4.119	—	0
199.100.4.120	—	0
199.100.4.121	be6961.agr61.rio01.atlas.cogentco.com	0
199.100.4.122	redebrtelecom.demarc.cogentco.com	0
199.100.4.123	—	0
199.100.4.124	—	0
199.100.4.125	—	0
199.100.4.126	—	0
199.100.4.127	—	0
199.100.4.128	—	0
199.100.4.129	hu0-0-0-1.201.ccr51.rio01.atlas.cogentco.com	0
199.100.4.130	k1fibra.demarc.cogentco.com	0
199.100.4.131	—	0
199.100.4.132	—	0
199.100.4.133	—	0
199.100.4.134	—	0
199.100.4.135	—	0
199.100.4.136	—	0
199.100.4.137	hu0-1-0-3.ccr51.rio01.atlas.cogentco.com	0
199.100.4.138	—	0
199.100.4.139	—	0
199.100.4.140	—	0
199.100.4.141	—	0
199.100.4.142	—	0
199.100.4.143	—	0
199.100.4.144	—	0
199.100.4.145	gi0-0-0-9.nr11.b071420-0.rio01.atlas.cogentco.com	0
199.100.4.146	—	0
199.100.4.147	—	0
199.100.4.148	—	0
199.100.4.149	—	0
199.100.4.150	—	0
199.100.4.151	—	0
199.100.4.152	—	0
199.100.4.153	te0-0-0-5.201.agr61.rio01.atlas.cogentco.com	0
199.100.4.154	—	0
199.100.4.155	—	0
199.100.4.156	—	0
199.100.4.157	—	0
199.100.4.158	—	0
199.100.4.159	—	0
199.100.4.160	be4577.ccr51.rio01.atlas.cogentco.com	0
199.100.4.161	gi0-0-0-2.nr11.b071420-0.rio01.atlas.cogentco.com	0
199.100.4.162	te0-0-1-0.3030.nr11.b071560-0.rio01.atlas.cogentco.com	0
199.100.4.163	—	0
199.100.4.164	te0-0-0-45.agr62.rio01.atlas.cogentco.com	0
199.100.4.165	—	0
199.100.4.166	te0-0-0-2.agr62.rio01.atlas.cogentco.com	0
199.100.4.167	—	0
199.100.4.168	—	0
199.100.4.169	be5779.ccr31.sao01.atlas.cogentco.com	0
199.100.4.170	amazon.demarc.cogentco.com	0
199.100.4.171	—	0
199.100.4.172	—	0
199.100.4.173	—	0
199.100.4.174	—	0
199.100.4.175	—	0
199.100.4.176	—	0
199.100.4.177	te0-0-0-43.203.agr62.rio01.atlas.cogentco.com	0
199.100.4.178	—	0
199.100.4.179	—	0
199.100.4.180	gi0-0-0-5.nr11.b071420-0.rio01.atlas.cogentco.com	0
199.100.4.181	te0-3-0-3.202.ccr51.rio01.atlas.cogentco.com	0
199.100.4.182	be7711.ccr51.rio01.atlas.cogentco.com	0
199.100.4.183	—	0
199.100.4.184	—	0
199.100.4.185	be4092.ccr51.rio01.atlas.cogentco.com	0
199.100.4.186	—	0
199.100.4.187	—	0
199.100.4.188	—	0
199.100.4.189	te0-3-0-3.204.ccr51.rio01.atlas.cogentco.com	0
199.100.4.190	—	0
199.100.4.191	—	0
199.100.4.192	—	0
199.100.4.193	be7245.agr62.rio01.atlas.cogentco.com	0
199.100.4.194	—	0
199.100.4.195	—	0
199.100.4.196	—	0
199.100.4.197	—	0
199.100.4.198	—	0
199.100.4.199	—	0
199.100.4.200	—	0
199.100.4.201	be7244.agr61.rio01.atlas.cogentco.com	0
199.100.4.202	—	0
199.100.4.203	—	0
199.100.4.204	—	0
199.100.4.205	—	0
199.100.4.206	—	0
199.100.4.207	—	0
199.100.4.208	hu0-0-0-0.ccr51.rio01.atlas.cogentco.com	0
199.100.4.209	te0-0-0-3.agr61.rio01.atlas.cogentco.com	0
199.100.4.210	be9698.ccr51.rio01.atlas.cogentco.com	0
199.100.4.211	—	0
199.100.4.212	—	0
199.100.4.213	—	0
199.100.4.214	—	0
199.100.4.215	—	0
199.100.4.216	—	0
199.100.4.217	gi0-0-0-0.nr11.b071420-0.rio01.atlas.cogentco.com	0
199.100.4.218	—	0
199.100.4.219	—	0
199.100.4.220	—	0
199.100.4.221	—	0
199.100.4.222	—	0
199.100.4.223	—	0
199.100.4.224	—	0
199.100.4.225	gi0-0-0-1.nr11.b071420-0.rio01.atlas.cogentco.com	0
199.100.4.226	—	0
199.100.4.227	—	0
199.100.4.228	—	0
199.100.4.229	—	0
199.100.4.230	—	0
199.100.4.231	—	0
199.100.4.232	—	0
199.100.4.233	be6506.ccr51.rio01.atlas.cogentco.com	0
199.100.4.234	—	0
199.100.4.235	—	0
199.100.4.236	—	0
199.100.4.237	—	0
199.100.4.238	—	0
199.100.4.239	—	0
199.100.4.240	—	0
199.100.4.241	te0-3-0-5.202.ccr51.rio01.atlas.cogentco.com	0
199.100.4.242	—	0
199.100.4.243	—	0
199.100.4.244	—	0
199.100.4.245	—	0
199.100.4.246	—	0
199.100.4.247	—	0
199.100.4.248	—	0
199.100.4.249	hu0-1-0-1.ccr51.rio01.atlas.cogentco.com	0
199.100.4.250	—	0
199.100.4.251	—	0
199.100.4.252	—	0
199.100.4.253	—	0
199.100.4.254	—	0
199.100.4.255	—	0

Traceroute

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

traceroute -a -n -q1 199.100.4.186

traceroute to 199.100.4.186 (199.100.4.186): 64 hops max, 52 byte packets

1 [AS31898] 140.91.208.30 0.195 ms

2 [AS174] 199.100.4.186 7.315 ms

Measurement taken from

IPinfo ProbeNet in Sao Paulo, BR

On January 30th 2026