AS596 Level 3 Parent, LLC

CENTURYLINK-LEGACY-LVLT-596 - Level 3 Parent, LLC · registered in the United States

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in United States#10,500largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#49,464of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS596 in ASN lookup Look up an IP in this network (137.83.2.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

137.83.2.0/23

Other ASNs named Level 3 Parent, LLC

8 other networks use the same organisation name; together with AS596 they announce 32,815,616 IPv4 addresses.

ASNNameIPv4 addresses

AS3356LEVEL3 - Level 3 Parent, LLC US27,412,864

AS3549LVLT-3549 - Level 3 Parent, LLC US4,521,728

AS10753LUMEN-LEGACY-L3-CUSTOMER-SHARED-USE - Level 3 Parent, LLC US640,512

AS203CENTURYLINK-LEGACY-LVLT-203 - Level 3 Parent, LLC US230,912

AS1LVLT-1 - Level 3 Parent, LLC US7,296

AS202CENTURYLINK-LEGACY-LVLT-202 - Level 3 Parent, LLC US1,024

AS18756PATEAM - Level 3 Parent, LLC US512

AS19094RESERVED-IPADMIN - Level 3 Parent, LLC US256

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AS619#10501 DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD)512

AS813#10502 UUNET-CANADA - Verizon Business512

AS824#10503 GLAXOSMITHKLINE - GlaxoSmithKline512

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