Autonomous system
AS11975 WM
Education ARIN
Summary
The College of William and Mary
education university research legacy
WM is the campus network of the College of William & Mary in Williamsburg, Virginia, the second-oldest university in the United States. It also carries the Virginia Institute of Marine Science.
What it's used for
- University connectivity. The AS announces roughly 131,000 addresses across two
/16s and their more-specifics:128.239.0.0/16, registered to the College of William and Mary, and139.70.0.0/16, registered to the Virginia Institute of Marine Science. - VIMS is not a third party. It is William & Mary's marine research school, based at Gloucester Point across the York River, so the second registrant is an intra-institution relationship rather than the unrelated-registrant pattern that marks leased or brokered address space.
- No IPv6 is announced from this AS.
Notable
- Three observed neighbours against 131,000 addresses is a textbook campus shape: a large, long-held address block reached through a small number of upstreams, most likely including a regional research network. Universities hold far more addresses than their peering count would suggest because their space dates from an era of generous allocations, not because they carry other people's traffic.
- The announcement pattern — each
/16also advertised as its two halving/17s — is ordinary traffic engineering across redundant links, not fragmentation.
Interesting
- Both address blocks are registered to the institutions that use them, so the routing table and the registry agree completely here.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 9 prefixes · 131K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 9 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11975- Registry name
- WM
- Registrant
- The College of William and Mary
- Abuse contact
- abuse@wm.edu
- Registered
- 1999-02-18
- Last changed
- 2022-01-05
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 8 with no ROA
- ROAs
- 0 authorising AS11975
- ASPA
- no ASPA record
- IRR
- 100% registered · 8 of 8 announcements
- Route objects
- 6 naming AS11975
Reputation
Classification and threat
Education University, school or national research and education network.
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: 448 networks and 1,851 prefixes, as published 2026-10-29. 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