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AS2152 · Registration country: US US — CENIC

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CENIC-2152 · ARIN · Registration country: US US

Identity sourceAS2152 · Registration country: US US CENIC

NRO allocation data

155IPv4 prefixes
23IPv6 prefixes
91Observed neighbors
RPKIValid: 4Invalid: 0Not found: 174Unknown: 0

Selected local snapshot coverage; not the whole Internet. BGP snapshots: ris-rrc00 11 Oct 00:00 UTC; routeviews2 11 Oct 06:00 UTC; routeviews6 11 Oct 04:00 UTC. Validator: 11 Oct 06:22 UTC. Publication-point issues: 90

Address space details

Overlapping originated prefixes counted once. IPv4 addresses: 2,012,160

IPv6 addresses: 79228162514264337593543950336

Loading public source data…

Observed originated prefixes

These are observed BGP origins, not an inventory of registered allocations or transit reachability.

Advanced filters

178 matching prefix–origin pairs. Each pair appears once; source observations are in Details.

PrefixRPKILast observedDetails
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found
Not Found
11 Oct 06:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI not_found
  • routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI not_found

Next rows

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Observed AS neighbors

91 unique neighbors in the selected local snapshots. This is the available collector dataset, not a complete map of the Internet. Adjacency does not establish upstream service or peering.

91 matching neighbors · 76–91 shown

NetworkIPv4/IPv6Seen inLast observedDetails
AS46750 · Registration country: US US STANFORD-INTERNET-ACCESS2 - Stanford University
IPv6
ris-rrc00, routeviews6
11 Oct 04:00 UTC
Source observations
  • ris-rrc00 · IPv6 · 11 Oct 00:00 UTC
  • routeviews6 · IPv6 · 11 Oct 04:00 UTC
AS46985 · Registration country: US US HPWREN - The Regents of the University of California - University of California, San Diego.
IPv4
ris-rrc00, routeviews2
11 Oct 06:00 UTC
Source observations
  • ris-rrc00 · IPv4 · 11 Oct 00:00 UTC
  • routeviews2 · IPv4 · 11 Oct 06:00 UTC
AS54048 · Registration country: US US CVIN - Vast Networks
IPv4
ris-rrc00, routeviews2
11 Oct 06:00 UTC
Source observations
  • ris-rrc00 · IPv4 · 11 Oct 00:00 UTC
  • routeviews2 · IPv4 · 11 Oct 06:00 UTC
AS54179 · Registration country: US US VCOE - Ventura County Office of Education
IPv4
ris-rrc00, routeviews2
11 Oct 06:00 UTC
Source observations
  • ris-rrc00 · IPv4 · 11 Oct 00:00 UTC
  • routeviews2 · IPv4 · 11 Oct 06:00 UTC
AS54192 · Registration country: US US MONTEBELLO-USD - Montebello Unified School District
IPv4
ris-rrc00, routeviews2
11 Oct 06:00 UTC
Source observations
  • ris-rrc00 · IPv4 · 11 Oct 00:00 UTC
  • routeviews2 · IPv4 · 11 Oct 06:00 UTC
AS63435 · Registration country: US US County of Monterey
IPv4
ris-rrc00, routeviews2
11 Oct 06:00 UTC
Source observations
  • ris-rrc00 · IPv4 · 11 Oct 00:00 UTC
  • routeviews2 · IPv4 · 11 Oct 06:00 UTC
AS393282 · Registration country: US US UCB-1 - University of California at Berkeley
IPv4, IPv6
ris-rrc00, routeviews2, routeviews6
11 Oct 06:00 UTC
Source observations
  • ris-rrc00 · IPv4 · 11 Oct 00:00 UTC
  • routeviews2 · IPv4 · 11 Oct 06:00 UTC
  • ris-rrc00 · IPv6 · 11 Oct 00:00 UTC
  • routeviews6 · IPv6 · 11 Oct 04:00 UTC
AS393425 · Registration country: US US CALACADEMY-NET - California Academy of Sciences
IPv4
ris-rrc00, routeviews2
11 Oct 06:00 UTC
Source observations
  • ris-rrc00 · IPv4 · 11 Oct 00:00 UTC
  • routeviews2 · IPv4 · 11 Oct 06:00 UTC
AS394435 · Registration country: US US ACLIBRARY - Alameda County Library
IPv4
ris-rrc00, routeviews2
11 Oct 06:00 UTC
Source observations
  • ris-rrc00 · IPv4 · 11 Oct 00:00 UTC
  • routeviews2 · IPv4 · 11 Oct 06:00 UTC
AS395148 · Registration country: US US PACLW - PACIFIC LIGHTWAVE, A CALIFORNIA CORPORATION
IPv4
ris-rrc00, routeviews2
11 Oct 06:00 UTC
Source observations
  • ris-rrc00 · IPv4 · 11 Oct 00:00 UTC
  • routeviews2 · IPv4 · 11 Oct 06:00 UTC
AS395226 · Registration country: US US SACRAMENTO-COE - Sacramento County Office of Education
IPv4, IPv6
ris-rrc00, routeviews2, routeviews6
11 Oct 06:00 UTC
Source observations
  • ris-rrc00 · IPv4 · 11 Oct 00:00 UTC
  • routeviews2 · IPv4 · 11 Oct 06:00 UTC
  • routeviews6 · IPv6 · 11 Oct 04:00 UTC
AS396310 · Registration country: US US SDSU-SCIENCE-NETWORK - San Diego State University
IPv4
ris-rrc00, routeviews2
11 Oct 06:00 UTC
Source observations
  • ris-rrc00 · IPv4 · 11 Oct 00:00 UTC
  • routeviews2 · IPv4 · 11 Oct 06:00 UTC
AS396450 · Registration country: US US INTERNET2-2 - Internet2
IPv4
ris-rrc00, routeviews2
11 Oct 06:00 UTC
Source observations
  • ris-rrc00 · IPv4 · 11 Oct 00:00 UTC
  • routeviews2 · IPv4 · 11 Oct 06:00 UTC
AS396465 · Registration country: US US SACSTATE - California State University, Sacramento
IPv4, IPv6
ris-rrc00, routeviews2, routeviews6
11 Oct 06:00 UTC
Source observations
  • ris-rrc00 · IPv4 · 11 Oct 00:00 UTC
  • routeviews2 · IPv4 · 11 Oct 06:00 UTC
  • routeviews6 · IPv6 · 11 Oct 04:00 UTC
AS399574 · Registration country: US US RCCD-ASN - Riverside Community College District
IPv4
ris-rrc00, routeviews2
11 Oct 06:00 UTC
Source observations
  • ris-rrc00 · IPv4 · 11 Oct 00:00 UTC
  • routeviews2 · IPv4 · 11 Oct 06:00 UTC
AS400452 · Registration country: US US UC-DAVIS-HEALTH - University of California Davis Medical Center
IPv4
ris-rrc00, routeviews2
11 Oct 06:00 UTC
Source observations
  • ris-rrc00 · IPv4 · 11 Oct 00:00 UTC
  • routeviews2 · IPv4 · 11 Oct 06:00 UTC

Previous neighbors

Clear neighbor filters

View observed neighbor graph (up to 15 AS nodes)

Lines mean observed adjacency, with no commercial direction inferred. The table above provides the same evidence and source times.

Showing 14 of 91 matching neighbors, in table sort order, independent of table page.

AS2152AS16AS24AS25AS31AS52AS131AS195AS257AS299AS567AS2037AS2153AS2516AS2920

Peering & locations

Loading public source data…

Registry information

ARIN · fetched 10 Oct 21:05 UTC

Resource name
CENIC-2152
Handle
AS2152
RDAP country
Not supplied
ASN
2152

Registered organizations

Last Changed: 08 Jul 2024 21:00 UTC

Registration: 08 Jul 2024 21:00 UTC

Registry source

Allocation statistics

NRO/RIR delegated-extended records describe allocation or assignment ranges. They do not prove a BGP announcement or replace more-specific RDAP registration information. Country is the allocation record’s registration country, not the physical location of every address.

NRO data and format

Prefix count history

Uses the public RIPEstat Data API when requested.

Local observation changes

Only comparable successful snapshots are compared. First imports, changed peer coverage and collection gaps are baselines, not new global routes or withdrawals. RPKI transition history is not available before it has been recorded.

No retained changes are available for this resource.

Retained local prefix-count observations

Separate collector series. Missing rows are not zero. Peer-set changes are separate coverage, not a continuous trend.

SourceSnapshotFamilyPrefixesPeer coverage
routeviews2
11 Oct 06:00 UTC
IPv4
155
140.192.8.16/IPv4
routeviews2
11 Oct 04:00 UTC
IPv4
155
140.192.8.16/IPv4
routeviews6
11 Oct 04:00 UTC
IPv6
23
2406:840:feed:2::1/IPv6
routeviews2
11 Oct 02:00 UTC
IPv4
155
140.192.8.16/IPv4
routeviews6
11 Oct 02:00 UTC
IPv6
23
2406:840:feed:2::1/IPv6
ris-rrc00
11 Oct 00:00 UTC
IPv6
1
2a00:5884::6/IPv6, 89.234.186.6/IPv4
ris-rrc00
11 Oct 00:00 UTC
IPv4
155
2a00:5884::6/IPv6, 89.234.186.6/IPv4
ris-rrc00
10 Oct 16:00 UTC
IPv6
1
2a00:5884::6/IPv6, 89.234.186.6/IPv4
ris-rrc00
10 Oct 16:00 UTC
IPv4
155
2a00:5884::6/IPv6, 89.234.186.6/IPv4