AS4468 — EASYLINK4
AS4468 announces 5 IPv4 prefixes covering 1,536 addresses and 0 IPv6 prefixes.
About this network
An AT&T autonomous system registered with ARIN in 1995 and held today by AT&T Enterprises, LLC, under the legacy EASYLINK4 handle.
What it's used for
- Announcing a handful of AT&T prefixes, mostly out of 204.127.0.0/16, in support of AT&T-run services.
- A small, special-purpose ASN — not one of AT&T's major transit or consumer broadband networks.
Notable
- The address space is corporate rather than residential: these routes back AT&T's own service infrastructure, not home subscriber pools.
- Sibling of AS4466, which carries the matching EASYLINK2 handle from the same registration batch.
Interesting
- The EasyLink name traces back to the electronic messaging, fax, and telex business AT&T bought from Western Union in 1990. The product line eventually moved on to other companies; the AS handle did not.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 204.127.240.0/23
- 204.127.242.0/24
- 204.127.245.0/24
- 204.127.249.0/24
- 204.127.251.0/24
Upstream networks
Adjacent networks
BGP / ASN / CIDR
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IPv4
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IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED