Autonomous system
AS7150 CUPANET-BLM-AS
Education ARIN
Summary
Commonwealth University of Pennsylvania
education university legacy
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 —148.137.0.0/16,151.161.0.0/16and157.62.0.0/16.
Notable
- ARIN's netnames still record the pre-merger identities:
CUPANET-BLM(Bloomsburg),CUPANET-LCK(Lock Haven) andCUPANET-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. 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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 6 prefixes · 198K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 6 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS7150- Registry name
- CUPANET-BLM-AS
- Registrant
- Commonwealth University of Pennsylvania
- Abuse contact
- abuse@commonwealthu.edu
- Registered
- 2017-08-02
- Last changed
- 2024-09-20
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 7 valid, 0 with no ROA
- ROAs
- 8 authorising AS7150
- ASPA
- 4 declared providers
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 45 naming AS7150
Reputation
Classification and threat
Education University, school or national research and education network.
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 1,783 prefixes, as published 2026-10-20. 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