AS2923 TIAA-CREF

AS-TIAA-NET - TIAA-CREF · registered in the United States

IPv4 addresses38,65623 prefixes · 0.001% of announced IPv4

Rank in United States#1,604largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#4,389of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS2923 in ASN lookup Look up an IP in this network (103.175.178.1) All networks in United States

IPv4 prefixes

All 23 prefixes, in address order.

103.175.178.0/24
103.215.155.0/24
143.165.0.0/19
143.165.32.0/20
143.165.48.0/20
143.165.80.0/22
143.165.88.0/24
143.165.90.0/23
143.165.128.0/21
143.165.136.0/24
143.165.137.0/24
143.165.138.0/24
143.165.139.0/24
143.165.140.0/22
143.165.144.0/20
143.165.161.0/24
143.165.187.0/24
143.165.188.0/24
143.165.190.0/23
143.165.192.0/24
143.165.208.0/22
143.165.216.0/22
143.165.224.0/19

Similar-sized networks in United States

ASNNameIPv4 addresses

AS10913#1601 INTERNAP-BLK - Unitas Global38,656

AS30257#1602 GEMC - Gibson Electric Membership Corporation38,656

AS46269#1603 KRONOS-MA - UKG Kronos Systems, LLC38,656

AS18862#1605 NCS-HEALTHCARE - Omnicare, Inc.38,656

AS30569#1606 CREIGHTON-AS - Creighton University38,656

AS16700#1607 CNSNEXT - CNSNext38,400

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