Adjacent networks

AS2153 CENIC-2153

Unclassified ARIN

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS2153 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS2152	CENIC	Unclassified	IPv4 IPv6	25,963
AS11537	Internet2	Unclassified	IPv4 IPv6	17,165
AS7575	Australian Academic and Research Network (AARNet)	Education	IPv4 IPv6	4,876
AS293	ESnet	Unclassified	IPv4	1,515
AS6509	CANARIE Inc	Education	IPv4	1,124
AS2907	Research Organization of Information and Systems, National Institute of Informatics	Unclassified	IPv4 IPv6	1,070
AS17579	KISTI	Education	IPv4	579
AS567	Los Nettos	Unclassified	IPv4	351
AS195	San Diego Supercomputer Center	Unclassified	IPv4 IPv6	317
AS668	United States Department of Defense (DoD)	Business	IPv4	288
AS11096	FloridaNet	Education	IPv4	237
AS38022	REANNZ National Research and Education Network	Unclassified	IPv4	118
AS6192	University of California, Davis	Education	IPv4 IPv6	108
AS7377	University of California, San Diego	Education	IPv4 IPv6	97
AS40498	New Mexico Lambda Rail, Inc.	Unclassified	IPv4	68
AS52	University of California, Los Angeles	Unclassified	IPv4 IPv6	61
AS7539	National Center for High-performance Computing	Education	IPv4	54
AS46985	The Regents of the University of California - University of California, San Diego.	Unclassified	IPv4	43
AS8075	Microsoft Corporation	Hosting	IPv4	32
AS31	California Institute of Technology	Unclassified	IPv4 IPv6	31
AS299	University of California, Irvine	Unclassified	IPv4 IPv6	31
AS131	University of California, Santa Barbara	Unclassified	IPv4	30
AS26397	The Regents of the University of California - University of California, San Diego.	Unclassified	IPv4	26
AS5653	University of California San Francisco	Education	IPv4	25
AS32361	UltraLight	Unclassified	IPv4	22
AS6360	University of Hawaii	Education	IPv4	21
AS257	Navy Network Information Center (NNIC)	Unclassified	IPv4	20
AS32	Stanford University	Unclassified	IPv4 IPv6	15
AS101	University of Washington	Unclassified	IPv4	15
AS5739	University of California, Santa Cruz	Education	IPv4 IPv6	13
AS396310	San Diego State University	Unclassified	IPv4	11
AS6106	University of California, Riverside	Education	IPv4 IPv6	8
AS22323	University of California, Merced	Unclassified	IPv4	7
AS9	Carnegie Mellon University	Unclassified	IPv4	6
AS16	Lawrence Berkeley National Laboratory	Unclassified	IPv4	6
AS2037	California State University at Fresno	Unclassified	IPv4	6
AS7960	California Polytechnic State University	Education	IPv4	6
AS26488	Santa Clara University	Unclassified	IPv4	6
AS396465	California State University, Sacramento	Unclassified	IPv4	6
AS46357	California Polytechnic State University	Unclassified	IPv4	5
AS47	University of Southern California	Unclassified	IPv4	4
AS24	National Aeronautics and Space Administration	Unclassified	IPv4 IPv6	3
AS160	The University of Chicago	Education	IPv4	1

Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Derived from routing tables collected at 2026-10-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.22M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.