AS14306 GlaxoSmithKline

GLAXOSMITHKLINE - GlaxoSmithKline · registered in the United States

IPv4 addresses7683 prefixes · <0.001% of announced IPv4

Rank in United States#9,357largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#43,803of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS14306 in ASN lookup Look up an IP in this network (152.51.24.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

152.51.24.0/24
152.51.27.0/24
152.51.48.0/24

Other ASNs named GlaxoSmithKline

4 other networks use the same organisation name; together with AS14306 they announce 2,816 IPv4 addresses.

ASNNameIPv4 addresses

AS3902GLAXOSMITHKLINE - GlaxoSmithKline US1,024

AS824GLAXOSMITHKLINE - GlaxoSmithKline US512

AS2539GLAXOSMITHKLINE - GlaxoSmithKline US256

AS5635GLAXOSMITHKLINE - GlaxoSmithKline US256

Similar-sized networks in United States

ASNNameIPv4 addresses

AS14162#9354 FHLB-PITT - FEDERAL HOME LOAN BANK of PITTSBURGH768

AS14195#9355 CONTEGO-AS - Contego Solutions LLC768

AS14301#9356 EVEREST-INTERNET - Everest Global Services768

AS14310#9358 SNB-ASN - Safra National Bank Of New York768

AS14360#9359 AS14360 - Alvarez & Marsal Holdings, LLC768

AS14473#9360 I3ASN1-200E - Inside The Internet, Inc768

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