AS17215 Ameren Corp.

AMEREN-AS3 - Ameren Corp. · registered in the United States

IPv4 addresses7683 prefixes · <0.001% of announced IPv4

Rank in United States#9,411largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#43,877of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS17215 in ASN lookup Look up an IP in this network (198.51.215.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

198.51.215.0/24
199.38.133.0/24
204.136.7.0/24

Other ASNs named Ameren Corp.

1 other network uses the same organisation name; together with AS17215 they announce 1,024 IPv4 addresses.

ASNNameIPv4 addresses

AS21794AMEREN-AS2 - Ameren Corp. US256

Similar-sized networks in United States

ASNNameIPv4 addresses

AS17091#9408 HOLLCORP - Hollister Incorporated768

AS17096#9409 SUMMITRACING - SUMMIT RACING768

AS17145#9410 TEAJAX - THE ENERGY AUTHORITY768

AS17244#9412 MCNEESE - McNeese State University768

AS17245#9413 APEX - Apex Clearing Solutions, LLC768

AS17301#9414 FASTENAL - Fastenal Company768

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