AS2149 Cogent Communications, LLC

COGENT-2149 - Cogent Communications, LLC · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#13,280largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#61,017of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS2149 in ASN lookup Look up an IP in this network (192.33.4.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

192.33.4.0/24

IPv6 prefixes

All 1 prefix.

2001:500:2::/48

Other ASNs named Cogent Communications, LLC

5 other networks use the same organisation name; together with AS2149 they announce 24,683,135 IPv4 addresses.

ASNNameIPv4 addresses

AS174COGENT-174 - Cogent Communications, LLC US24,663,935

AS4991COGENT-4991-4994 - Cogent Communications, LLC US16,384

AS1790COGENT-1790 - Cogent Communications, LLC US1,024

AS4550COGENT-4550 - Cogent Communications, LLC US1,024

AS1803COGENT-1803 - Cogent Communications, LLC US512

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IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources