AS7377·Registration country: US US— University of California, San Diego

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UCSD · ARIN · Registration country: US US

Identity sourceAS7377 · Registration country: US US University of California, San Diego

NRO allocation data

Selected local snapshot coverage; not the whole Internet. BGP snapshots: ris-rrc00 11 Oct 08:00 UTC; routeviews2 11 Oct 10:00 UTC; routeviews6 11 Oct 10:00 UTC. Validator: 11 Oct 11:44 UTC. Publication-point issues: 88

Address space details

Overlapping originated prefixes counted once. IPv4 addresses: 12,855,552

IPv6 addresses: 99035203142830421991929937920

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Observed originated prefixes

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

Advanced filters

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

PrefixRPKILast observedDetails
Valid
11 Oct 10:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T08:00:00+00:00 · 1 selected peers · RPKI valid
  • routeviews2 · 2026-10-11T10:00:00+00:00 · 1 selected peers · RPKI valid
Valid
11 Oct 10:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T08:00:00+00:00 · 1 selected peers · RPKI valid
  • routeviews2 · 2026-10-11T10:00:00+00:00 · 1 selected peers · RPKI valid
Valid
11 Oct 10:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T08:00:00+00:00 · 1 selected peers · RPKI valid
  • routeviews2 · 2026-10-11T10:00:00+00:00 · 1 selected peers · RPKI valid
Valid
11 Oct 10:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T08:00:00+00:00 · 1 selected peers · RPKI valid
  • routeviews2 · 2026-10-11T10:00:00+00:00 · 1 selected peers · RPKI valid
Valid
11 Oct 10:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T08:00:00+00:00 · 1 selected peers · RPKI valid
  • routeviews2 · 2026-10-11T10:00:00+00:00 · 1 selected peers · RPKI valid
Valid
11 Oct 10:00 UTC
2 source observations
  • ris-rrc00 · 2026-10-11T08:00:00+00:00 · 1 selected peers · RPKI valid
  • routeviews6 · 2026-10-11T10:00:00+00:00 · 1 selected peers · RPKI valid

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AS connectivity

2 observed neighbors · 3 direct networks including inferred relationships (excludes this AS).

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3 matching networks · 1–3 shown

NetworkRelationship to AS7377IPv4/IPv6Evidence
AS2152 · Registration country: US US CENIC
v4: upstream / v6: upstream
IPv4, IPv6
Observed + inferred
  • IPv4 · upstream · CAIDA 2026-10-01 · ris-rrc00 11 Oct 08:00 UTC; routeviews2 11 Oct 10:00 UTC
  • IPv6 · upstream · CAIDA 2026-10-01 · ris-rrc00 11 Oct 08:00 UTC; routeviews6 11 Oct 10:00 UTC
AS2153 · Registration country: US US CENIC-2153 - CENIC
v4: upstream / v6: upstream
IPv4, IPv6
Inferred
  • IPv6 · upstream · CAIDA 2026-10-01 · No BGP observation
  • IPv4 · upstream · CAIDA 2026-10-01 · No BGP observation
AS26397 · Registration country: US US The Regents of the University of California - University of California, San Diego.
v4: downstream
IPv4
Observed + inferred
  • IPv4 · downstream · CAIDA 2026-10-01 · ris-rrc00 11 Oct 08:00 UTC; routeviews2 11 Oct 10:00 UTC

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Peering & locations

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Registry information

ARIN · fetched 10 Oct 22:50 UTC

Resource name
UCSD
Handle
AS7377
RDAP country
Not supplied
ASN
7377

Registered organizations

Last Changed: 19 Dec 2023 19:53 UTC

Registration: 25 Nov 1996 05:00 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 10:00 UTC
IPv4
18
140.192.8.16/IPv4
routeviews6
11 Oct 10:00 UTC
IPv6
2
2406:840:feed:2::1/IPv6
ris-rrc00
11 Oct 08:00 UTC
IPv6
2
2a00:5884::6/IPv6, 89.234.186.6/IPv4
routeviews6
11 Oct 08:00 UTC
IPv6
2
2406:840:feed:2::1/IPv6
routeviews2
11 Oct 08:00 UTC
IPv4
18
140.192.8.16/IPv4
ris-rrc00
11 Oct 08:00 UTC
IPv4
18
2a00:5884::6/IPv6, 89.234.186.6/IPv4
ris-rrc00
11 Oct 00:00 UTC
IPv4
18
2a00:5884::6/IPv6, 89.234.186.6/IPv4
ris-rrc00
11 Oct 00:00 UTC
IPv6
2
2a00:5884::6/IPv6, 89.234.186.6/IPv4