AS55

Name: AS55 — University of Pennsylvania
Creator: ipdex

University of Pennsylvania Education registered in United States

5IPv4 prefixes

1IPv6 prefixes

100%RPKI-valid

#5,895AS Rank

327/327RIS visibility

#4,646Rank in United States

1985-12-18Allocated

University of Pennsylvania (AS55) — Education, registered in United States. announces 5 IPv4 prefixes + 1 IPv6 prefixes. Rank in United States: #4646. Allocated: 1985-12-18.

IPv4 5IPv6 1

Announced prefixes · 6

v4 128.91.0.0/16 valid
v4 130.91.0.0/16 valid
v4 158.130.0.0/16 valid
v4 165.123.0.0/16 valid
v4 192.84.2.0/24 valid
v6 2607:f470::/32 valid

RPKI: rpki.cloudflare.com · 2026-06-17

Routing: 5 IPv4 · 1 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	6
2026-06-13	6

Facilities · 1

1 Facilities · 1 Countries

Netrality Philadelphia - 401 N Broad Philadelphia

AS topology · Customer cone 3

Providers · 4

AS3356 Level 3 Parent, LLC
AS174 Cogent Communications, LLC
AS11537 Internet2
AS11164 Internet2

Customers · 2

AS69 University of Pennsylvania
AS46274 Penn Medicine

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