AS27501 isp.net

ISPNET-AS - isp.net · registered in the United States

IPv4 addresses37,12025 prefixes · 0.001% of announced IPv4

Rank in United States#1,628largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#4,463of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS27501 in ASN lookup Look up an IP in this network (64.72.96.1) All networks in United States

IPv4 prefixes

All 25 prefixes, in address order.

64.72.96.0/20
64.250.224.0/21
64.250.232.0/23
64.250.234.0/23
64.250.236.0/23
64.250.238.0/23
64.250.240.0/23
64.250.242.0/23
64.250.244.0/22
64.250.248.0/22
64.250.252.0/22
74.113.216.0/21
103.25.144.0/22
103.78.160.0/22
103.85.232.0/22
148.170.64.0/19
199.88.32.0/20
199.88.48.0/22
199.127.116.0/22
208.95.72.0/23
208.95.74.0/24
208.95.78.0/23
208.95.108.0/22
209.51.40.0/21
216.127.116.0/22

Other ASNs named isp.net

1 other network uses the same organisation name; together with AS27501 they announce 38,144 IPv4 addresses.

ASNNameIPv4 addresses

AS3704ISPNET-AS - isp.net US1,024

Similar-sized networks in United States

ASNNameIPv4 addresses

AS6597#1625 COLOBLOX - Coloblox Data Centers Inc37,120

AS25649#1626 AYERA-AS - AYERA TECHNOLOGIES, INC.37,120

AS32329#1627 MONKEYBRAINS - Another Corporate ISP, LLC37,120

AS7078#1629 MONMOUTH - Monmouth Internet Corp36,864

AS22772#1630 LOGIN - Login, Inc.36,864

AS32444#1631 ANTHEMBB - Anthem Broadband36,864

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