Autonomous system
AS63 LL-MI
Unclassified ARIN
Summary
MIT Lincoln Laboratory
research legacy
An early low-numbered allocation (LL-MI) serving MIT Lincoln Laboratory in Lexington, Massachusetts, a federally funded research and development center (FFRDC) operated by MIT for the US government.
What it's used for
- Research and operational networking for national-security science and technology work.
Notable
- A federally sponsored research lab's network, not a commercial ISP or host.
- The low AS number reflects Lincoln Laboratory's long involvement in computing and networking research, dating to the internet's early years.
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 2026-10-27, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 12 prefixes · 67.58K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 12 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS63- Registry name
- LL-MI
- Registrant
- Massachusetts Institute of Technology
- Abuse contact
- larry.oconnell@ll.mit.edu
- Registered
- 1986-02-24
- Last changed
- 2023-12-04
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 6 with no ROA
- ROAs
- 0 authorising AS63
- ASPA
- no ASPA record
- IRR
- 100% registered · 6 of 6 announcements
- Route objects
- 10 naming AS63
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: 447 networks and 1,852 prefixes, as published 2026-10-27. 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