Autonomous system
AS33619 AMD-MARKHAM
Unclassified ARIN
Summary
Advanced Micro Devices
business semiconductor corporate internal
The AS handle AMD-MARKHAM is held by Advanced Micro Devices, Inc.
What it's used for
- The address space carries internal corporate infrastructure, evidenced by the consistent netname
AMDNETacross all sampled prefixes. - The inventory consists of 28 IPv4 prefixes totaling 19456 addresses, with 17 observed neighbours. This ratio of moderate address space against a limited number of peering partners indicates an internal corporate estate rather than a transit or access network.
Notable
- All registrants in the RDAP sample agree with the announcer, listing Advanced Micro Devices, Inc. as the owner for every prefix.
- The address inventory is finely subdivided into 28 distinct prefixes, ranging from /21s down to /24s, which reflects site-by-site segmentation typical of a large enterprise network.
- No IPv6 prefixes are currently announced in the inventory.
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
16 upstream, 0 downstream and 16 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS3356 | Level 3 Parent, LLC | 1,419 |
| AS3257 | GTT Communications Inc. | 1,037 |
| AS13335 | Cloudflare, Inc. | 831 |
| AS4637 | Telstra Global | 522 |
| AS9498 | BHARTI Airtel Ltd. | 351 |
| AS7018 | AT&T Enterprises, LLC | 300 |
| AS6461 | Zayo Bandwidth | 298 |
| AS9930 | TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia | 246 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 28 prefixes · 19.46K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 28 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS33619- Registry name
- AMD-MARKHAM
- Registrant
- Advanced Micro Devices, Inc.
- Abuse contact
- netreg@amd.com
- Registered
- 2005-02-07
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 3% valid · 3 valid, 92 with no ROA
- ROAs
- 3 authorising AS33619
- ASPA
- no ASPA record
- IRR
- 100% registered · 95 of 95 announcements
- Route objects
- 48 naming AS33619
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: 436 networks and 1,771 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