Autonomous system
AS8030 WORLDNET5-10
Unclassified ARIN
Summary
AT&T WorldNet
enterprise legacy
WORLDNET5-10 — registered to AT&T WorldNet, the name of AT&T's 1990s consumer dial-up service. The name is the trap. WorldNet as a consumer ISP is long gone, and what this AS carries today is AT&T's enterprise VPN and managed network addressing. It is not an eyeball network.
What it's used for
- Internet-gateway pools for AT&T's enterprise VPN service. Most announced prefixes are ARIN assignments named
ATTxx EVPN-*—ATTUS,ATTLA,ATTCA,ATTEMA,ATTAP— one set per AT&T region, drawn from the legacy32.0.0.0/8and12.0.0.0/8space. - A handful of AT&T Services allocations (
135.42.0.0/16fragments,192.20.0.0/19), and a few customer routes that are not AT&T at all: some170.141.x/24s belong to the State of Tennessee.
Notable
- Reverse DNS is deliberately blank across the space — AT&T answers
nothing.attdns.com— so the netnames, not the DNS, are the honest witness here, and they say enterprise VPN service, not subscriber. - Only one observed BGP neighbour: this AS hangs entirely off AT&T's own backbone rather than peering.
- Because it mixes AT&T service pools with third-party customer prefixes, an address in it should be geolocated and typed with care. The holder name tells you nothing about the site at the far end.
Interesting
- AT&T WorldNet launched in 1996, the same year this ASN was registered, and was one of the first big-brand consumer ISPs in the US. The number outlived the product by nearly two 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 |
|---|---|---|
| AS7018 | AT&T Enterprises, LLC | 2,360 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 30 prefixes · 191K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 30 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS8030- Registry name
- WORLDNET5-10
- Registrant
- AT&T WorldNet
- Abuse contact
- bmaddino@attmail.com
- Registered
- 1996-08-30
- Last changed
- 1996-08-30
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 73% valid · 29 valid, 11 with no ROA
- ROAs
- 32 authorising AS8030
- ASPA
- no ASPA record
- IRR
- 73% registered · 29 of 40 announcements
- Route objects
- 32 naming AS8030
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 1,781 prefixes, as published 2026-10-16. 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