Autonomous system
AS11279 GEORGE-MASON-UNIV - George Mason University
Education ARIN Educational/Research
Summary
George Mason University
university education research legacy
GEORGE-MASON-UNIV is the campus network of George Mason University, Virginia's largest public research university, based in Fairfax with additional campuses in Arlington, Manassas and Front Royal. This is a straightforward single-institution academic AS.
What it's used for
RIS observes 16 IPv4 prefixes carrying 66,048 addresses, one IPv6 prefix (2620:10e:6000::/40), and three observed neighbours. Read the prefix count against the address count and the estate is smaller than it looks: almost all 16 announcements are the same /16, 129.174.0.0/16, sliced into /17s, /18s and /19s and announced alongside the aggregate. Deaggregating a legacy /16 like that is standard university practice, used for traffic engineering across multiple upstreams and to make the space harder to hijack with a more-specific. Only two prefixes sit outside it: 192.5.215.0/24 and 199.26.254.0/24.
Three neighbours is the classic research-and-education edge — connections through the state and national R&E networks plus commercial transit for redundancy. The space carries campus infrastructure: student and staff wired and wireless access, residence halls, library and administrative systems, and research computing.
Notable
Every prefix RDAP resolved is registered to George Mason University itself, under the handles MASONET, MASONNET and MASONETCS. A /40 of IPv6 is a generous, modern allocation and it is announced, so the campus is genuinely v6-reachable rather than merely v6-allocated.
Interesting
The one reverse-DNS record the pack sampled is the informative one. 199.26.254.5 answers as a199-26-254-212.deploy.akamaitechnologies.com — an Akamai content-delivery node living inside the university's own registered /24. Universities routinely host on-net caches so that streaming, software updates and course content are served from campus instead of crossing the transit link. It is also a good reminder of what reverse DNS does and does not tell you: the PTR names Akamai, but the block is George Mason's, and rDNS describes what space carries, never who holds it.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Equinix Internet Exchange Ashburn | Ashburn, United States | 206.126.237.48 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 66.05K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 4 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11279- Registry name
- GEORGE-MASON-UNIV
- Registrant
- George Mason University
- Abuse contact
- abuse@gmu.edu
- Registered
- 1998-06-10
- Last changed
- 2012-02-24
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- George Mason University
- Network type
- Educational/Research
- Scope
- Regional
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- Present at
- 1 exchanges
- Facilities
- 1 facilities
- Website
- https://www2.gmu.edu/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 17 with no ROA
- ROAs
- 0 authorising AS11279
- ASPA
- no ASPA record
- IRR
- 100% registered · 17 of 17 announcements
- Route objects
- 18 naming AS11279
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: 447 networks and 1,843 prefixes, as published 2026-11-01. 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