Autonomous system
AS26380 MASTER-7-AS
Unclassified ARIN
Summary
Mastercard
business payments corporate infrastructure
MASTER-7-AS is operated by Mastercard Technologies LLC.
What it's used for
- The address space carries corporate infrastructure for a global payments company, evidenced by netnames such as
MASTERCARD,MASTERCARD-AU, andMASTERCARD-IN. - The AS announces 15,104 IPv4 addresses across 25 prefixes and 2 IPv6 prefixes, while maintaining 20 observed neighbours. This ratio of moderate address inventory to a limited peer set indicates an internal corporate estate rather than a transit or access network.
Notable
- Registrants are consistent with the announcer, primarily listing MasterCard Technologies LLC, with some prefixes registered to MasterCard AsiaPacific Australia Pty Ltd.
- The address inventory includes blocks with
ATTnetnames, such as12.22.152.0/21and12.10.32.0/23, which are registered to AT&T Enterprises, LLC, suggesting historical leasing or acquisition of address space. - The inventory is finely subdivided into /21, /22, /23, and /24 blocks, reflecting site-by-site segmentation typical of a large multinational corporation.
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
18 upstream, 0 downstream and 20 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS13335 | Cloudflare, Inc. | 1,690 |
| AS32787 | Akamai Technologies, Inc. | 899 |
| AS15830 | Equinix (EMEA) Acquisition Enterprises B.V. | 359 |
| AS3257 | GTT Communications Inc. | 246 |
| AS19905 | Vercara, LLC | 243 |
| AS7474 | SingTel Optus Pty Ltd | 137 |
| AS22677 | Charter Communications LLC | 122 |
| AS4755 | TATA Communications formerly VSNL is Leading ISP | 119 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 25 prefixes · 15.10K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 27 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS26380- Registry name
- MASTER-7-AS
- Registrant
- MasterCard Technologies LLC
- Abuse contact
- hostmaster@mastercard.org
- Registered
- 2010-09-17
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 99% valid · 71 valid, 1 with no ROA
- ROAs
- 57 authorising AS26380
- ASPA
- no ASPA record
- IRR
- 97% registered · 70 of 72 announcements 1 other origin
- Route objects
- 122 naming AS26380
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 1,773 prefixes, as published 2026-10-13. 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