Upstream networks

AS25577 C4L-AS

Hosting APNIC

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS25577: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

AS	Network	Type	Families	Paths seen
AS174	Cogent Communications, LLC	Transit	IPv4	954
AS3257	GTT Communications Inc.	Transit	IPv4 IPv6	610
AS6939	Hurricane Electric LLC	Transit	IPv4 IPv6	441
AS34549	meerfarbig GmbH & Co. KG	Hosting	IPv4	135
AS3223	Voxility LLP	Hosting	IPv4	118
AS50304	Blix Solutions AS	Unclassified	IPv4	90
AS4637	Telstra Global	Unclassified	IPv4	51
AS12552	GlobalConnect AB	Unclassified	IPv4	49
AS3303	Swisscom (Schweiz) AG	Residential	IPv4	48
AS24482	SG.GS	Hosting	IPv4 IPv6	48
AS48185	team.blue NV	Unclassified	IPv4 IPv6	48
AS33891	Core-Backbone GmbH	Hosting	IPv4	47
AS50300	CustodianDC Limited	Unclassified	IPv4	47
AS37721	Virtual Technologies & Solutions	Residential	IPv4 IPv6	46
AS3741	Dimension Data	Unclassified	IPv4	45
AS4657	StarHub Ltd	Residential	IPv4	45
AS12779	IT.Gate S.p.A.	Unclassified	IPv4	45
AS17639	Converge ICT Solutions Inc.	Unclassified	IPv4	45
AS31500	Global Network Management Inc	Unclassified	IPv4	45
AS37100	SEACOM Limited	Unclassified	IPv4	45
AS48362	Stadtwerke Feldkirch	Residential	IPv4	45
AS9505	Taiwan Internet Gateway	Unclassified	IPv4	3
AS29169	GANDI SAS	Hosting	IPv4	3

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you.

Derived from routing tables collected at 2026-10-18 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.17M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.