AS7150 — CUPANET-BLM-AS

Network type: education

AS7150 announces 6 IPv4 prefixes covering 198,400 addresses and 0 IPv6 prefixes.

About this network

CUPANET-BLM-AS is the network of Commonwealth University of Pennsylvania, the public university formed by the integration of the Bloomsburg, Lock Haven and Mansfield campuses within Pennsylvania's state system.

What it's used for

• Campus networking across the university's sites: teaching, residential halls, labs, libraries and administration.
• Announces roughly 200,000 IPv4 addresses, dominated by three legacy /16s — 148.137.0.0/16, 151.161.0.0/16 and 157.62.0.0/16.

Notable

• ARIN's netnames still record the pre-merger identities: CUPANET-BLM (Bloomsburg), CUPANET-LCK (Lock Haven) and CUPANET-MNS (Mansfield). The three blocks were registered separately in 1991 and 1992 and now sit under one organisation record.
• Three full /16s for one regional university is a striking amount of address space by modern standards, and a direct artefact of when the campuses first connected — each got a Class B in an era when they were handed out on request.

Interesting

• The AS is the rare case where a merger is legible in the routing data: one autonomous system now originates what were three institutions' independent address blocks.

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

Announced prefixes

• 148.137.0.0/16
• 151.161.0.0/16
• 157.62.0.0/16
• 192.149.243.0/24
• 204.108.180.0/23
• 204.108.184.0/22

Upstream networks

• AS13536 FirstLight Fiber, Inc.
• AS399855 Keystone REN, LLC
• AS3737 PenTeleData Inc.
• AS3356 Level 3 Parent, LLC

Adjacent networks

• AS13536 FirstLight Fiber, Inc.
• AS399855 Keystone REN, LLC
• AS3737 PenTeleData Inc.
• AS3356 Level 3 Parent, LLC

Routing security

• RPKI: 7 valid, 0 invalid and 0 not-found announcements; 8 ROAs.
• ASPA: 4 authorised providers.
• IRR: 100% of announcements registered; 45 route objects.
• Listed in as-sets: AS-BLOOMU, AS-CUPANET, AS-HURRICANE, AS-KINBER, AS-PENNREN, AS-PTD-DOWNSTREAM, AS399855:AS-CONE, AS7150:AS-CONE, AS7150:AS-CONE.