AS23528 Bird.com Inc.

SPARKPOST - Bird.com Inc. · registered in the United States

IPv4 addresses33,02449 prefixes · 0.001% of announced IPv4

Rank in United States#1,721largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#4,755of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS23528 in ASN lookup Look up an IP in this network (91.206.59.1) All networks in United States

IPv4 prefixes

All 49 prefixes, in address order.

91.206.59.0/24
137.22.224.0/20
137.22.240.0/22
137.22.244.0/24
137.22.247.0/24
137.22.248.0/23
137.22.250.0/24
147.160.155.0/24
147.253.208.0/20
156.70.2.0/23
156.70.4.0/23
156.70.12.0/23
156.70.16.0/23
156.70.22.0/23
156.70.24.0/23
156.70.34.0/23
156.70.46.0/23
156.70.52.0/23
156.70.62.0/23
156.70.72.0/23
156.70.76.0/23
156.70.88.0/23
156.70.120.0/23
156.70.150.0/23
161.129.25.0/24
161.129.27.0/24
161.199.112.0/24
162.247.166.0/23
168.203.32.0/22
168.203.36.0/23
168.203.42.0/23
168.203.46.0/23
168.203.48.0/22
168.203.52.0/23
192.133.16.0/24
192.158.253.0/24
192.174.80.0/21
192.174.88.0/22
192.174.92.0/24
192.174.93.0/24
192.174.94.0/23
194.28.204.0/23
199.15.224.0/22
216.24.61.0/24
223.165.112.0/24
223.165.114.0/24
223.165.116.0/23
223.165.122.0/23
223.165.124.0/22

Similar-sized networks in United States

ASNNameIPv4 addresses

AS1565#1718 DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD)33,024

AS2577#1719 DNIC-AS-02577 - United States Department of Defense (DoD)33,024

AS16600#1720 UTHEALTHCENTER-TYLER - University of Texas Health Science Center at Tyler33,024

AS26923#1722 OPLIN - Ohio Public Library Information Network (OPLIN)33,024

AS29984#1723 WILLAMETTE - Willamette University33,024

AS33022#1724 WELLESLEY-COLLEGE - Wellesley College33,024

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