AS53768 Laboratory Corporation of America

LABCORP - Laboratory Corporation of America · registered in the United States

IPv4 addresses26,3688 prefixes · <0.001% of announced IPv4

Rank in United States#1,888largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#5,326of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS53768 in ASN lookup Look up an IP in this network (12.35.188.1) All networks in United States

IPv4 prefixes

All 8 prefixes, in address order.

12.35.188.0/22
12.39.198.0/23
12.145.88.0/21
162.134.32.0/19
162.134.64.0/19
162.134.96.0/21
162.134.160.0/20
162.134.250.0/24

Other ASNs named Laboratory Corporation of America

2 other networks use the same organisation name; together with AS53768 they announce 29,192 IPv4 addresses.

ASNNameIPv4 addresses

AS18994LABCORP-BLS - Laboratory Corporation of America US2,312

AS22502LABCORP-HOLDINGS - Laboratory Corporation of America US512

Similar-sized networks in United States

ASNNameIPv4 addresses

AS138#1885 DNIC-AS-00138 - United States Department of Defense (DoD)26,368

AS26831#1886 CAMERON-COMMUNICATIONS - Cameron Communications, LLC26,368

AS32645#1887 PIVOT - Fidium26,368

AS33362#1889 WIKTEL - Wikstrom Telephone Company, Incorporated26,112

AS22489#1890 DATABANK-CASTLEACCESS - Castle Access Inc26,112

AS25645#1891 MOMENTUM-ACCESS - Momentum Telecom, Inc.26,112

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