AS31822 City University of New York

CITY-UNIVERSITY-OF-NEW-YORK - City University of New York · registered in the United States

IPv4 addresses659,71212 prefixes · 0.021% of announced IPv4

Rank in United States#141largest network in US by IPv4 space, of 18,338 · 0.05% of US

Rank worldwide#478of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS31822 in ASN lookup Look up an IP in this network (128.228.0.1) All networks in United States

IPv4 prefixes

All 12 prefixes, in address order.

128.228.0.0/16
134.74.0.0/16
146.95.0.0/16
146.96.0.0/16
146.111.0.0/16
146.245.0.0/16
148.84.0.0/16
149.4.0.0/16
150.210.0.0/16
163.238.0.0/16
198.61.16.0/20
198.180.141.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses

AS21859#138 ZEN-ECN - Zenlayer Inc667,136

AS22516#139 CHARTER-22516-CENTRAL-CA-C3 - Charter Communications LLC665,088

AS22258#140 COMCAST-22258 - Comcast Cable Communications, LLC664,064

AS4193#142 WA-STATE-GOV - State of Washington655,872

AS3128#143 BRUWS-AS3128 - University of Wisconsin System655,616

AS297#144 AS297 - National Aeronautics and Space Administration649,472

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