AS5661 — USF

Network type: education

AS5661 announces 1 IPv4 prefixes covering 65,536 addresses and 1 IPv6 prefixes.

About this network

USF is the University of South Florida, a large public research university in Tampa, Florida. AS5661 is its campus network, an ARIN allocation dating to 1995.

What it's used for

• Carrying traffic for USF's campuses, research computing, and university services out of the legacy 131.247.0.0/16 block, alongside an IPv6 /32.

Notable

• An institutional network, not a commercial one: addresses here belong to campus workstations, labs, residence halls, and university-run services rather than paying subscribers.
• The whole of a class-B network sits behind this ASN, a size of allocation that was routine for universities in the early internet and is rarely granted now.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 131.247.0.0/16
• 2607:fe50::/32

Upstream networks

• AS174 Cogent Communications, LLC
• AS11096 FloridaNet
• AS6939 Hurricane Electric LLC
• AS3356 Level 3 Parent, LLC

Adjacent networks

• AS174 Cogent Communications, LLC
• AS11096 FloridaNet
• AS6939 Hurricane Electric LLC
• AS3356 Level 3 Parent, LLC

Internet exchanges

• Tampa Internet Exchange — Tampa, United States