HomeASN LookupAS2152

AS2152 CENIC-2152 - CENIC

🇺🇸
ARINassigned
Announced Prefixes (BGP)
804total
780 IPv424 IPv6
IPv4 Addresses
Allocated (RIR)1.7M
Announced (BGP)2.5M
IPv6 Addresses
Allocated (RIR)7.9×10²⁸
Announced (BGP)7.9×10²⁸
Prefix Limit (IPv4)
2,000
Prefix Limit (IPv6)
100
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
2024-07-08

Routing hygiene

Score 36/100 · Medium risk
RPKI ROA coverage
3.5%
no RPKI invalid prefixes
IRR route objects
97.6%
19 prefixes registered for another origin
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
4
diversity 55/100
  • 97% of announced prefixes (776 of 804) have no valid ROA
  • 10 prefixes registered in IRR route objects for another active network and not authorized by a ROA

Based on 804 announced prefixes, updated daily (2026-10-21). How the score works · RPKI explained

Announced Prefixes

(BGP)804
|
Prefix
RPKI
IRR
Last Seen
64.39.112.0/20
No ROA
Other IRR
2026-10-27
69.48.214.0/23
No ROA
Other IRR
2026-10-27
69.48.215.0/24
No ROA-2026-10-27
76.78.96.0/21
No ROA
Other IRR
2026-10-27
76.78.124.0/24
No ROA
ARINOther IRR
2026-10-27
76.78.125.0/24
No ROA
ARINOther IRR
2026-10-27
104.249.91.0/24
No ROA
Other IRR
2026-10-27
104.249.94.0/24
No ROA
Other IRR
2026-10-27
130.65.0.0/16
No ROA
Other IRR
2026-10-27
130.86.2.0/23
No ROA-2026-10-27
1-10 of 804
1 / 81

Allocated Prefixes

(RIR)57
Prefix
Country
RIR
Status
64.39.112.0/20🇺🇸 USARINallocated
69.48.214.0/23🇺🇸 USARINallocated
130.65.0.0/16🇺🇸 USARINallocated
130.157.0.0/16🇺🇸 USARINallocated
130.166.0.0/16🇺🇸 USARINallocated
130.182.0.0/16🇺🇸 USARINallocated
130.191.0.0/16🇺🇸 USARINallocated
130.212.0.0/16🇺🇸 USARINallocated
134.139.0.0/16🇺🇸 USARINallocated
134.154.0.0/16🇺🇸 USARINallocated
1-10 of 57
1 / 6

All 804 announced prefixes of AS2152 →

Downstream Customers(1)

ASNName
AS23483🇺🇸SHASTACOE - Shasta County Office of Education

BGP Neighbours

(seen in AS paths)

Upstreams (4)

Networks AS2152 hands its own prefixes to: transit providers, or peers at an exchange.

Downstreams (100 of 101)

Networks whose own prefixes AS2152 passes on: usually its customers.

  • AS2920Los Angeles County Office Of Education241
  • AS18558Riverside County Office Of Education175
  • AS195San Diego Supercomputer Center164
  • AS22315San Bernardino County Superintendent Of Schools105
  • AS23024Orange County Department Of Education62
  • AS54179Ventura County Office Of Education62
  • AS18975Stanislaus County Office Of Education51
  • AS3734Santa Clara County Office Of Education41
  • AS395226Sacramento County Office Of Education41
  • AS5653University Of California San Francisco33
  • AS7960California Polytechnic State University27
  • AS7377University Of California, San Diego22
  • AS8151UNINET22
  • AS10867Foothill DeAnza Community College District22
  • AS25University Of California At Berkeley19
  • AS52University Of California, Los Angeles19
  • AS21915Merced County Office Of Education19
  • AS26492VCCCD19
  • AS396465California State University, Sacramento19
  • AS23117Imperial County Office Of Education18
  • AS395148PACIFIC LIGHTWAVE, A CALIFORNIA CORPORATION18
  • AS23489Marin County Office Of Education17
  • AS11293University Of California Office Of The President16
  • AS14213Monterey County Office Of Education16
  • AS23483Shasta County Office Of Education15
  • AS21694Fresno County Office Of Education14
  • AS6099Alameda County Office Of Education13
  • AS257Navy Network Information Center (NNIC)12
  • AS6492Palomar Community College District12
  • AS14212Santa Cruz County Office Of Education12
  • AS6192University Of California, Davis11
  • AS393282University Of California At Berkeley11
  • AS131University Of California, Santa Barbara10
  • AS299University Of California, Irvine10
  • AS21708San Diego County Office Of Education10
  • AS31California Institute Of Technology9
  • AS11159Los Angeles Public Library9
  • AS14255University Of San Diego9
  • AS30193Los Angeles Unified School District9
  • AS6106University Of California, Riverside8
  • AS16573Santa Monica Community College District8
  • AS21545Kings County Office Of Education8
  • AS23369Sonoma County Office Of Education8
  • AS32361UltraLight8
  • AS46290MtSAC8
  • AS5739University Of California, Santa Cruz7
  • AS5783Kern County Superintendent Of Schools6
  • AS13940San Joaquin County Office Of Education6
  • AS25664Solano County Office Of Education6
  • AS26403Madera County Office Of Education6
  • AS30679California State Polytechnic University Pomona6
  • AS31764OAKLAND UNIFIED SCHOOL DISTRICT6
  • AS394435Alameda County Library6
  • AS16Lawrence Berkeley National Laboratory5
  • AS567Los Nettos5
  • AS2037California State University At Fresno4
  • AS2543University Of California, Irvine4
  • AS13335Cloudflare4
  • AS17369Chapman University4
  • AS21828Tulare County Office Of Education4
  • AS22226San Francisco Unified School District4
  • AS22323University Of California, Merced4
  • AS23323Diablo Valley College4
  • AS29878Community Hospital Of The Monterey Peninsula4
  • AS40498New Mexico Lambda Rail4
  • AS46985The Regents Of The University Of California University Of California, San Diego4
  • AS63331Lawrence Berkeley National Laboratory4
  • AS393425California Academy Of Sciences4
  • AS7922Comcast Cable Communications3
  • AS20115Charter Communications3
  • AS22063J. Paul Getty Trust3
  • AS23309Contra Costa County Office Of Education3
  • AS26488Santa Clara University3
  • AS27502Madera County Office Of Education3
  • AS54048Vast Networks3
  • AS54192Montebello Unified School District3
  • AS55032The Jackson Laboratory3
  • AS63435County Of Monterey3
  • AS399574Riverside Community College District3
  • AS400452University Of California Davis Medical Center3
  • AS24National Aeronautics And Space Administration2
  • AS42WoodyNet2
  • AS7941Internet Archive2
  • AS10294Coast Community College District2
  • AS11188LOS ANGELES COUNTY INTERNAL SERVICESDIVISION2
  • AS22768SYNERGY BROADBAND2
  • AS23065Santa Barbara County Education Office2
  • AS26066Napa Valley Unified School District2
  • AS33585City Of Newport Beach2
  • AS46357California Polytechnic State University2
  • AS46425Salinas Valley Memorial Hospital2
  • AS46749Stanford University2
  • AS46750Stanford University2
  • AS396310San Diego State University2
  • AS9Carnegie Mellon University1
  • AS2635Automattic1
  • AS11164Internet21
  • AS13979AT&T Enterprises1
  • AS18760City Of Rancho Cucamonga1
  • AS32933Ceres Unified School District1

Other adjacent networks (13)

Adjacent to AS2152 in the transit part of AS paths: peers, providers or customers.

  • AS6461Zayo Bandwidth3,329
  • AS6939Hurricane Electric23
  • AS8220COLT Technology Services Group Limited19
  • AS2516KDDI CORPORATION7
  • AS7342VeriSign Infrastructure & Operations7
  • AS11404Wave Broadband5
  • AS3292TDC Holding A/S4
  • AS1828Unitas Global3
  • AS7843Charter Communications3
  • AS9505Taiwan Internet Gateway2
  • AS18450WebNX2
  • AS19151BroadbandONE2
  • AS49544I3Dnet I3D.Net B.V1

Transfer History

Registry transfers of AS2152 between organisations.

1
ASPA
No ASPA0 upstreams, 1 downstream
Listed as Upstream Provider by
1 ASN
View full ASPA details →
External Links
ARIN WhoisRIPEstat

Learn more

API
Open
GEThttps://api.ipctl.io/v1/asn/2152

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/2152" | jq