AS400509 IPFB LLC

ASIPFB - IPFB LLC · registered in the United States

IPv4 addresses7683 prefixes · <0.001% of announced IPv4

Rank in United States#9,252largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#43,618of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS400509 in ASN lookup Look up an IP in this network (23.133.88.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

23.133.88.0/24
74.112.101.0/24
207.174.28.0/24

IPv6 prefixes

All 1 prefix.

2606:bbc0::/48

Similar-sized networks in United States

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AS400773#9253 BOSTON-FIBER - Boston Fiber LLC768

AS400806#9254 CLEARLYIP-CA - Clearly IP Inc768

AS401731#9255 ROLL-TIDE - The University of Alabama Athletics768

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