AS8030 — WORLDNET5-10

AS8030 announces 30 IPv4 prefixes covering 190,976 addresses and 0 IPv6 prefixes.

About this network

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 legacy 32.0.0.0/8 and 12.0.0.0/8 space.
• A handful of AT&T Services allocations (135.42.0.0/16 fragments, 192.20.0.0/19), and a few customer routes that are not AT&T at all: some 170.141.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.

Announced prefixes

• 12.194.0.0/16
• 12.253.0.0/18
• 32.2.128.0/18
• 32.7.32.0/20
• 32.10.0.0/18
• 32.21.160.0/19
• 32.29.128.0/18
• 32.29.224.0/20
• 32.34.252.0/22
• 32.35.64.0/19
• 32.35.104.0/21
• 32.35.152.0/22
• 32.35.156.0/24
• 32.37.192.0/19
• 32.39.128.0/19
• 32.49.116.0/22
• 32.49.240.0/22
• 32.49.244.0/23
• 32.245.192.0/23
• 32.245.200.0/21
• 32.245.208.0/20
• 135.42.0.0/23
• 135.42.2.0/24
• 135.42.11.0/24
• 135.42.12.0/24
• 170.141.165.0/24
• 170.141.221.0/24
• 192.20.122.0/23
• 192.20.124.0/22
• 192.20.128.0/21

Upstream networks

• AS7018 AT&T Enterprises, LLC

Adjacent networks

• AS7018 AT&T Enterprises, LLC