AS23257 IBM

IBMCCH-DAL-EQU - IBM · registered in the United States

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in United States#11,082largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#50,388of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS23257 in ASN lookup Look up an IP in this network (129.41.178.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

129.41.178.0/23

Other ASNs named IBM

12 other networks use the same organisation name; together with AS23257 they announce 99,328 IPv4 addresses.

ASNNameIPv4 addresses

AS1747IBMWATSON-AS - IBM US49,920

AS27530CORNEJO - IBM US16,384

AS10676GLOBALEC - IBM US12,288

AS15293ASN-ISS-ATL - IBM US9,728

AS17390CIO-ORGANIZATION - IBM US7,680

AS27477POLAR-PUBLIC-HUB-POP-ASN - IBM US768

AS22538IBM-CIOUS - IBM US512

AS26543IBM-CMS-RPL - IBM US512

AS23145CALL-HOME-EDGE-CLOUD-FLARE - IBM US256

AS547ASN-IBM-LEX - IBM US256

AS2538IBM-PLP - IBM US256

AS393850CLEVERSAFE - IBM US256

Similar-sized networks in United States

ASNNameIPv4 addresses

AS23223#11079 TOTAL-QUALITY-LOGISTICS-INC - Total Quality Logistics LLC512

AS23227#11080 NIKON - Nikon, Inc.512

AS23247#11081 SAMTECNA - Samtec, inc.512

AS23263#11083 EL-INTERNET-NORTHWEST - E.L. Internet Northwest512

AS23310#11084 TASTYLIME - TASTY LIME512

AS23356#11085 LAFC - Los Angeles Football Club512

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