AS2152 CENIC - CalREN 🇺🇸 US

CENIC. Announcing 756 prefixes, seen at the RIS collectors.

IPv4 prefixes

733

2,487,808 (9,718 × /24)

IPv6 prefixes

1 × /32

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

172

ASes reachable through it

Registry and operator data

AS number: AS2152
Name: CENIC - CalREN
Organisation: CENIC / CalREN AS2152
Country: 🇺🇸 US
RIR: ARIN
Allocated: 2024-07-08
Network type: Educational/Research
Traffic levels: 1-5Tbps
Scope: Regional
Peering policy: Selective
IRR as-set: AS-CALRENDC
Website: https://cenic.org
Looking glass: https://bgp.tools/lg/2152
PeeringDB: net/321
Exchanges: 7
Facilities: 6

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

27 valid (3.6%) 0 invalid (0.0%) 729 no ROA (96.4%)

Upstreams

Networks seen providing transit to this one

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS3356 Lumen (Level 3)	🇺🇸 US	70,916	2,084	31,248	CAIDA
AS11164 Internet2 I2PX	🇺🇸 US	1,268	13	1,353	CAIDA
AS396450 Internet2	🇺🇸 US	199	0	120	CAIDA

Peers

Adjacencies that look settlement-free rather than transit

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS6939 Hurricane Electric LLC	🇺🇸 US	52,953	235	8,532	CAIDA
AS6461 Zayo Bandwidth	🇺🇸 US	52,659	213	3,736	CAIDA
AS2153 CENIC	🇺🇸 US	53	11	4,440	CAIDA

Downstreams

Networks this one appears to provide transit to

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS54048 Vast Networks	🇺🇸 US	20	10	409	CAIDA
AS6360 University of Hawaii	🇺🇸 US	18	11	175	CAIDA
AS567 Los Nettos	🇺🇸 US	16	1	1,758	CAIDA
AS40498 New Mexico Lambda Rail, Inc.	🇺🇸 US	8	12	79	CAIDA
AS395226 Sacramento County Office of Education	🇺🇸 US	7	34	1,913	CAIDA
AS195 San Diego Supercomputer Center	🇺🇸 US	6	31	1,363	CAIDA
AS395148 PACIFIC LIGHTWAVE, A CALIFORNIA CORPORATION	🇺🇸 US	4	24	913	CAIDA
AS18558 Riverside County Office of Education	🇺🇸 US	3	140	6,591	CAIDA
AS23024 Orange County Department of Education	🇺🇸 US	3	59	2,518	CAIDA
AS46749 Stanford University	🇺🇸 US	3	1	68	CAIDA
AS2920 Los Angeles County Office of Education	🇺🇸 US	2	225	7,372	CAIDA
AS7377 University of California, San Diego	🇺🇸 US	2	18	819	CAIDA
AS6099 Alameda County Office of Education	🇺🇸 US	2	19	511	CAIDA
AS3734 Santa Clara County Office of Education	🇺🇸 US	2	16	391	CAIDA
AS21694 Fresno County Office of Education	🇺🇸 US	2	7	356	CAIDA
AS6106 University of California, Riverside	🇺🇸 US	2	4	288	CAIDA
AS5783 Kern County Superintendent of Schools	🇺🇸 US	2	5	213	CAIDA
AS21708 San Diego County Office of Education	🇺🇸 US	2	3	142	CAIDA
AS24 National Aeronautics and Space Administration	🇺🇸 US	2	1	103	CAIDA
AS6192 University of California, Davis	🇺🇸 US	2	6	102	CAIDA
AS22315 San Bernardino County Superintendent of Schools	🇺🇸 US	0	59	2,478	CAIDA
AS54179 Ventura County Office of Education	🇺🇸 US	0	58	2,316	CAIDA
AS10867 Foothill-DeAnza Community College District	🇺🇸 US	0	18	756	CAIDA
AS5653 University of California San Francisco	🇺🇸 US	0	16	609	CAIDA
AS25 University of California at Berkeley	🇺🇸 US	0	13	578	CAIDA
AS23117 Imperial County Office of Education	🇺🇸 US	0	12	504	CAIDA
AS11293 University of California - Office of the President	🇺🇸 US	0	19	494	CAIDA
AS23483 Shasta County Office of Education	🇺🇸 US	0	12	478	CAIDA
AS23489 Marin County Office of Education	🇺🇸 US	0	15	430	CAIDA
AS52 University of California, Los Angeles	🇺🇸 US	0	10	426	CAIDA
AS11159 Los Angeles Public Library	🇺🇸 US	0	7	294	CAIDA
AS396465 California State University, Sacramento	🇺🇸 US	0	8	294	CAIDA
AS393282 University of California at Berkeley	🇺🇸 US	0	6	287	CAIDA
AS6492 Palomar Community College District	🇺🇸 US	0	5	246	CAIDA
AS299 University of California, Irvine	🇺🇸 US	0	5	231	CAIDA
AS131 University of California, Santa Barbara	🇺🇸 US	0	5	231	CAIDA
AS31 California Institute of Technology	🇺🇸 US	0	12	230	CAIDA
AS32361 UltraLight	🇺🇸 US	0	4	228	CAIDA
AS31764 OAKLAND UNIFIED SCHOOL DISTRICT	🇺🇸 US	0	8	221	CAIDA
AS14255 University of San Diego	🇺🇸 US	0	6	214	CAIDA
AS30193 Los Angeles Unified School District	🇺🇸 US	0	5	210	CAIDA
AS25664 Solano County Office of Education	🇺🇸 US	0	4	205	CAIDA
AS7960 California Polytechnic State University	🇺🇸 US	0	23	203	CAIDA
AS23369 Sonoma County Office of Education	🇺🇸 US	0	6	172	CAIDA
AS13940 San Joaquin County Office of Education	🇺🇸 US	0	4	168	CAIDA
AS46290 MtSAC	🇺🇸 US	0	4	168	CAIDA
AS21545 Kings County Office of Education	🇺🇸 US	0	4	168	CAIDA
AS23323 Diablo Valley College	🇺🇸 US	0	4	168	CAIDA
AS21915 Merced County Office of Education	🇺🇸 US	0	8	138	CAIDA
AS21828 Tulare County Office of Education	🇺🇸 US	0	3	126	CAIDA
AS17369 Chapman University	🇺🇸 US	0	4	126	CAIDA
AS26403 Madera County Office of Education	🇺🇸 US	0	3	126	CAIDA
AS257 Navy Network Information Center (NNIC)	🇺🇸 US	0	2	114	CAIDA
AS5739 University of California, Santa Cruz	🇺🇸 US	0	2	114	CAIDA
AS46985 The Regents of the University of California - University of California, San Diego.	🇺🇸 US	0	8	97	CAIDA
AS18975 Stanislaus County Office of Education	🇺🇸 US	0	3	86	CAIDA
AS54192 Montebello Unified School District	🇺🇸 US	0	2	84	CAIDA
AS27502 Madera County Office of Education	🇺🇸 US	0	2	84	CAIDA
AS2037 California State University at Fresno	🇺🇸 US	0	2	81	CAIDA
AS26488 Santa Clara University	🇺🇸 US	0	2	81	CAIDA
AS23309 Contra Costa County Office of Education	🇺🇸 US	0	1	79	CAIDA
AS396310 San Diego State University	🇺🇸 US	0	2	78	CAIDA
AS30679 California State Polytechnic University - Pomona	🇺🇸 US	0	2	78	CAIDA
AS16573 Santa Monica Community College District	🇺🇸 US	0	2	44	CAIDA
AS39941 Pacific Wave	🇺🇸 US	0	2	44	CAIDA
AS63435 County of Monterey	🇺🇸 US	0	5	43	CAIDA
AS26066 Napa Valley Unified School District	🇺🇸 US	0	1	42	CAIDA
AS400452 University of California Davis Medical Center	🇺🇸 US	0	2	42	CAIDA
AS23065 Santa Barbara County Education Office	🇺🇸 US	0	1	42	CAIDA
AS32933 Ceres Unified School District	🇺🇸 US	0	1	42	CAIDA
AS22323 University of California, Merced	🇺🇸 US	0	2	42	CAIDA
AS22226 San Francisco Unified School District	🇺🇸 US	0	1	42	CAIDA
AS22063 J. Paul Getty Trust	🇺🇸 US	0	1	42	CAIDA
AS394435 Alameda County Library	🇺🇸 US	0	1	42	CAIDA
AS11188 LOS ANGELES COUNTY - INTERNAL SERVICESDIVISION	🇺🇸 US	0	49	42	CAIDA
AS10294 Coast Community College District	🇺🇸 US	0	1	42	CAIDA
AS399574 Riverside Community College District	🇺🇸 US	0	1	42	CAIDA
AS393425 California Academy of Sciences	🇺🇸 US	0	1	41	CAIDA
AS46750 Stanford University	🇺🇸 US	0	0	36	CAIDA
AS46425 Salinas Valley Memorial Hospital	🇺🇸 US	0	1	33	CAIDA
AS46357 California Polytechnic State University	🇺🇸 US	0	1	31	CAIDA
AS16 Lawrence Berkeley National Laboratory	🇺🇸 US	0	2	30	CAIDA
AS14213 Monterey County Office of Education	🇺🇸 US	0	13	26	CAIDA
AS29878 Community Hospital of the Monterey Peninsula	🇺🇸 US	0	2	26	CAIDA
AS26492 VCCCD	🇺🇸 US	0	10	20	CAIDA
AS18760 City of Rancho Cucamonga	🇺🇸 US	0	3	7	inferred
AS14212 Santa Cruz County Office of Education	🇺🇸 US	0	3	7	CAIDA
AS55032 The Jackson Laboratory	🇺🇸 US	0	17	4	CAIDA
AS22768 SYNERGY BROADBAND	🇺🇸 US	0	48	2	CAIDA
AS7941 Internet Archive	🇺🇸 US	0	6	1	CAIDA

Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.