asn.dev

Autonomous system

AS46749 STANFORD-INTERNET-ACCESS

Unclassified ARIN

IPv4 addresses 3.84K 5 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 2 downstream
Flagged prefixes 2 see address space

Summary

Stanford University

United States of America · AI-generated

education research university

STANFORD-INTERNET-ACCESS is operated by Stanford University.

What it's used for

  • The address space carries university network services, as indicated by the netname SUNET-INET-SVCS and reverse DNS entries such as RNET-SW-E82C6D427A40.SUNet and SZ-mobile-public-v4-net.SUNet.
  • The AS announces 3842 IPv4 addresses across 5 prefixes and 1 IPv6 prefix, with 6 observed routing neighbours. This ratio of address space to peering partners is consistent with an institutional access network rather than a transit provider.
  • Traffic from this AS represents the university's internal network, including campus infrastructure, research systems, and mobile public network access for students and staff.

Notable

  • Registrants for the primary prefixes are Stanford University, matching the AS holder. The small /31 prefix 137.164.23.144/31 is registered to CENIC under the netname CALREN, reflecting the California Research Network's role in providing connectivity to academic institutions.
  • The inventory consists of four contiguous blocks in the 68.65.160.0/21 range and a single /31, indicating a consolidated internal estate with minimal fragmentation.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 2 downstream and 7 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6939Hurricane Electric LLC61
AS2152CENIC8

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 5 prefixes · 3.84K addresses IPv6 1 prefixes

CountryNamePrefixes
USUnited States of America6

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS46749
Registry name
STANFORD-INTERNET-ACCESS
Registrant
Stanford University
Abuse contact
abuse@stanford.edu
Registered
2008-11-24
Last changed
2012-03-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
1 authorising AS46749
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
2 naming AS46749

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,773 prefixes, as published 2026-10-13. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check