AS27477 IBM

POLAR-PUBLIC-HUB-POP-ASN - IBM · registered in the United States

IPv4 addresses7682 prefixes · <0.001% of announced IPv4

Rank in United States#9,568largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#44,101of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS27477 in ASN lookup Look up an IP in this network (192.147.88.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

192.147.88.0/23
192.147.91.0/24

Other ASNs named IBM

12 other networks use the same organisation name; together with AS27477 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

AS22538IBM-CIOUS - IBM US512

AS23257IBMCCH-DAL-EQU - 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

AS27358#9565 TRUSTMARK-INSURANCE-INTERNET - TRUSTMARK INSURANCE CO.768

AS27377#9566 FTICON-909 - FTI CONSULTING768

AS27451#9567 USO-ASN - US Oncology, Inc.768

AS27548#9569 USAN-AS-A - United States Advanced Network Inc.768

AS27560#9570 ULTCO - Universal Leaf Tobacco Company Inc.768

AS27575#9571 PROVAK - Providence Hospital768

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