AS14207 CSG Systems Inc.

CSG-OD2 - CSG Systems Inc. · registered in the United States

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in United States#10,721largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#49,869of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS14207 in ASN lookup Look up an IP in this network (205.144.157.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

205.144.157.0/24
205.144.159.0/24

Other ASNs named CSG Systems Inc.

1 other network uses the same organisation name; together with AS14207 they announce 1,024 IPv4 addresses.

ASNNameIPv4 addresses

AS46895CSGN - CSG Systems Inc. US512

Similar-sized networks in United States

ASNNameIPv4 addresses

AS14092#10718 AFS-9 - AMERIPRISE FINANCIAL SERVICES, LLC512

AS14105#10719 NO - Secure IP512

AS14149#10720 ICONFITNESS-MAIN - Icon Health & Fitness Inc512

AS14226#10722 STIFEL - Stifel Nicolaus and Company Incorporated512

AS14252#10723 SCHOOLSPECIALTY - School Specialty, Inc.512

AS14257#10724 EZ-NET - The Iserv Company, LLC512

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