Autonomous system
AS3 MIT-GATEWAYS
Education ARIN
IPv4 addresses
1.84M
106 prefixes
IPv6 prefixes
6
counted as prefixes, not addresses
Countries
1
mostly US
Flagged prefixes
8
see address space
Summary
Massachusetts Institute of Technology (MIT)
education research legacy
One of the oldest allocations on the internet (MIT-GATEWAYS), serving the
Massachusetts Institute of Technology in Cambridge, Massachusetts.
What it's used for
- Campus, research, and administrative networking for MIT.
- Historically the announcing ASN for the legacy
18.0.0.0/8block — a full "Class A" (16.7M addresses) assigned to MIT in the early internet.
Notable
- In 2017 MIT announced it would sell about half of
18/8(roughly 8 million IPv4 addresses) since it no longer needed them; a portion went to Amazon. - A single-digit AS number reflects how early MIT connected — these were handed out sequentially in the internet's first years.
Interesting
- MIT's early networking work (and its stewardship of a whole /8) makes AS3 a frequent landmark when people explore the very bottom of the ASN space.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Address space
Summary
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 112 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS3- Registry name
- MIT-GATEWAYS
- Registrant
- Massachusetts Institute of Technology
- Abuse contact
- arin-mit-security@mit.edu
- Last changed
- 2025-12-02
- Status
- active
Reputation
Classification and threat
Education University, school or national research and education network.
No IC3 indicators Nothing from the FBI IC3 feed.
Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere