AS27521 CATCOMM INTERNET SERVICES, LLC

CATCOMM-ASN - CATCOMM INTERNET SERVICES, LLC · registered in the United States

IPv4 addresses6,40012 prefixes · <0.001% of announced IPv4

Rank in United States#3,734largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#12,049of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS27521 in ASN lookup Look up an IP in this network (64.39.64.1) All networks in United States

IPv4 prefixes

All 12 prefixes, in address order.

64.39.64.0/23
64.39.66.0/24
64.39.69.0/24
64.39.71.0/24
64.39.72.0/23
64.39.74.0/24
64.39.76.0/22
65.166.66.0/24
69.45.224.0/21
69.45.232.0/23
69.45.251.0/24
204.117.128.0/24

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AS30043#3737 RBAND-AS30043 - ResortInternet6,400

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