AS2152 · 
US — CENIC-2152 - CENIC
· View prefixes · Compare ASN · Export prefixes
CENIC-2152 - CENIC · · US
Selected local snapshot coverage; not the whole Internet. BGP snapshots: ris-rrc00 10 Oct 16:00 UTC; routeviews2 10 Oct 20:00 UTC; routeviews6 10 Oct 20:00 UTC. Validator: 10 Oct 20:56 UTC. Publication-point issues: 87
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.
178 matching prefix–origin pairs. Each pair appears once; source observations are in Details.
| Prefix | RPKI | Last observed | Details |
|---|---|---|---|
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
| |
Not Found | 10 Oct 20:00 UTC | 2 source observations
|
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 · 1–25 shown
| Network | IPv4/IPv6 | Seen in | Last observed | Details |
|---|---|---|---|---|
AS16 · US LBL - Lawrence Berkeley National Laboratory | IPv6 | ris-rrc00, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS24 · US AS24 - National Aeronautics and Space Administration | IPv4, IPv6 | ris-rrc00, routeviews2 | 10 Oct 20:00 UTC | Source observations
|
AS25 · US UCB - University of California at Berkeley | IPv4, IPv6 | ris-rrc00, routeviews2, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS31 · US California Institute of Technology | IPv4, IPv6 | ris-rrc00, routeviews2, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS52 · US UCLA - University of California, Los Angeles | IPv4, IPv6 | ris-rrc00, routeviews2, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS131 · US UCSB-NET-AS - University of California, Santa Barbara | IPv4, IPv6 | ris-rrc00, routeviews2, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS195 · US SDSC-AS - San Diego Supercomputer Center | IPv4, IPv6 | ris-rrc00, routeviews2, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS257 · US DNIC-AS-00257 - Navy Network Information Center NNIC | IPv4, IPv6 | ris-rrc00, routeviews2, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS299 · US UCINET-AS - University of California, Irvine | IPv4, IPv6 | ris-rrc00, routeviews2, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS567 · US ASN-LNET-AS - Los Nettos | IPv4, IPv6 | ris-rrc00, routeviews2, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS2037 · US CSUFRESNO - California State University at Fresno | IPv4 | ris-rrc00, routeviews2 | 10 Oct 20:00 UTC | Source observations
|
AS2153 · US CENIC-2153 - CENIC | IPv6 | ris-rrc00, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS2516 ·  JP KDDI KDDI CORPORATION | IPv6 | routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS2920 · US LACOE - Los Angeles County Office of Education | IPv4 | ris-rrc00, routeviews2 | 10 Oct 20:00 UTC | Source observations
|
AS3356 · US LEVEL3 - Level 3 Parent, LLC | IPv4 | ris-rrc00, routeviews2 | 10 Oct 20:00 UTC | Source observations
|
AS3734 · US SCCO - Santa Clara County Office of Education | IPv4 | ris-rrc00, routeviews2 | 10 Oct 20:00 UTC | Source observations
|
AS5653 · US UCSF - University of California San Francisco | IPv4 | ris-rrc00, routeviews2 | 10 Oct 20:00 UTC | Source observations
|
AS5739 · US UCSC - University of California, Santa Cruz | IPv4, IPv6 | ris-rrc00, routeviews2, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS5783 · US KCSOS-NET - Kern County Superintendent of Schools | IPv4 | ris-rrc00, routeviews2 | 10 Oct 20:00 UTC | Source observations
|
AS6099 · US BAE-NET-ASN - Alameda County Office of Education | IPv4, IPv6 | ris-rrc00, routeviews2, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS6106 · US UCR-EDU - University of California, Riverside | IPv4, IPv6 | ris-rrc00, routeviews2, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS6192 · US UCDAVIS-CORE - University of California, Davis | IPv6 | ris-rrc00, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS6360 · US UNIVHAWAII - University of Hawaii | IPv6 | ris-rrc00, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS6461 · US ZAYO-6461 - Zayo Bandwidth | IPv4, IPv6 | ris-rrc00, routeviews2, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
AS6492 · US PCCD - Palomar Community College District | IPv4, IPv6 | ris-rrc00, routeviews2, routeviews6 | 10 Oct 20:00 UTC | Source observations
|
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.
Peering & locations
Loading public source data…
Registry information
No cached registry response is available yet. Routing origins above are not a substitute for registry ownership.
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.
- AS2152–AS2152 · arin · assigned · ASN allocation country: US · Allocation date: 2024-07-08 — NRO/RIR data · snapshot 10 Oct 00:00 UTC
Prefix count history
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.
| Source | Snapshot | Family | Prefixes | Peer coverage |
|---|---|---|---|---|
routeviews2 | 10 Oct 20:00 UTC | IPv4 | 155 | 140.192.8.16/IPv4 |
routeviews6 | 10 Oct 20:00 UTC | IPv6 | 23 | 2406:840:feed:2::1/IPv6 |
routeviews2 | 10 Oct 18:00 UTC | IPv4 | 155 | 140.192.8.16/IPv4 |
routeviews6 | 10 Oct 18:00 UTC | IPv6 | 23 | 2406:840:feed:2::1/IPv6 |
ris-rrc00 | 10 Oct 16:00 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 08:00 UTC | IPv4 | 155 | 2a00:5884::6/IPv6, 89.234.186.6/IPv4 |
ris-rrc00 | 10 Oct 08:00 UTC | IPv6 | 1 | 2a00:5884::6/IPv6, 89.234.186.6/IPv4 |