Autonomous system
AS243 HARRIS-ATD-AS
Unclassified ARIN
Summary
L3Harris Technologies (Harris Corporation)
enterprise legacy
An early allocation held by L3Harris Technologies (HARRIS-ATD-AS), originally Harris Corporation's Advanced Technology Department in Melbourne, Florida.
What it's used for
- Corporate networking for a defense and communications technology company.
Notable
- A corporate / defense-contractor network, not a commercial ISP or host.
- The low AS number marks an early-internet allocation, handed out roughly sequentially.
Interesting
- Harris Corporation merged with L3 Technologies in 2019 to form L3Harris; the legacy
HARRIS-ATD-AShandle predates that by decades.
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
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS32787 | Akamai Technologies, Inc. | 7,680 |
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 185 prefixes · 750K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 185 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS243- Registry name
- HARRIS-ATD-AS
- Registrant
- L3Harris Technologies, Inc.
- Abuse contact
- abuse@l3harris.com
- Registered
- 1988-10-04
- Last changed
- 2023-01-31
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 2% valid · 2 valid, 126 with no ROA
- ROAs
- 2 authorising AS243
- ASPA
- no ASPA record
- IRR
- 100% registered · 128 of 128 announcements
- Route objects
- 131 naming AS243
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