Autonomous system
AS11939 MATHWORKS
Unclassified APNIC
Summary
The MathWorks, Inc.
enterprise legacy
MATHWORKS is The MathWorks, Inc. of Natick, Massachusetts, the company behind MATLAB and Simulink. This is its global corporate network, and it is unusually well-consolidated for an enterprise of this size.
What it's used for
RIS shows 26 IPv4 prefixes totalling 65,536 addresses, no IPv6, and eight observed BGP neighbours. The address count is the giveaway: it equals a single /16 exactly. MathWorks holds 144.212.0.0/16, announces the covering prefix, and then announces 25 more-specifics from inside it, ranging down to individual /24s. Those more-specifics do not add address space. They are traffic engineering, steering particular subnets toward particular upstreams while the aggregate keeps everything reachable if a specific route is lost.
Every prefix in the pack is registered in ARIN to MATHWORKS, org THE MATHWORKS, INC. There is no third-party registrant anywhere in the inventory, no scattered space from other registries, and no leasing pattern. The one sampled PTR, 144-212-192-5.mathworks.co.uk, is first-party reverse DNS pointing at the company's UK operation, which confirms the space carries MathWorks' own sites rather than someone else's traffic.
Notable
Eight neighbours against a full /16 is an enterprise, not a provider: a carrier with this much address space would peer with hundreds. Everything here is consistent with a single company running product downloads, license servers, corporate systems and international offices out of one legacy /16 it has held for a long time.
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.
Transit providers
7 upstream, 0 downstream and 7 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 39 prefixes · 65.54K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 39 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS11939- Registry name
- MATHWORKS
- Registrant
- THE MATHWORKS, INC.
- Abuse contact
- network@mathworks.com
- Registered
- 1999-02-09
- Last changed
- 2024-03-14
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 25 with no ROA
- ROAs
- 0 authorising AS11939
- ASPA
- no ASPA record
- IRR
- 100% registered · 25 of 25 announcements
- Route objects
- 20 naming AS11939
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 1,783 prefixes, as published 2026-10-17. 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