Autonomous system
AS55 UPENN
Unclassified ARIN
IPv4 addresses
262K
11 prefixes
IPv6 prefixes
16
counted as prefixes, not addresses
Countries
1
mostly US
Flagged prefixes
0
none
Summary
University of Pennsylvania
education research university legacy
An early low-numbered allocation (UPENN) serving the University of
Pennsylvania in Philadelphia.
What it's used for
- Campus, research, and administrative networking for Penn and its schools.
Notable
- Institutional address space, not commercial hosting.
- A two-digit AS number places Penn among the internet's earliest participants.
Interesting
- ENIAC, one of the first general-purpose electronic computers, was built at the University of Pennsylvania in the 1940s.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Address space
Summary
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 27 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS55- Registry name
- UPENN
- Registrant
- University of Pennsylvania
- Abuse contact
- security@upenn.edu
- Registered
- 1985-12-18
- Last changed
- 2021-10-14
- Status
- active
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
No IC3 indicators Nothing from the FBI IC3 feed.
Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere