BigDataCloud Logo

ASN Lookup Tool
AS55 UPENN

Powered By:
ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS55
Organisation
University of Pennsylvania
Name
UPENN
Total IPv4 Addresses
262656
Total IPv4 Prefixes
6
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#926 out of 77,447
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1985-12-18
Registration Last Change
2021-10-14
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS3356
US flagLevel 3 Parent, LLC
AS174
US flagCogent Communications
AS11537
US flagInternet2
AS11164
US flagInternet2
Transit To

The list of active Autonomous Systems (ASs) which receive traffic from that ASN.

 

ASN
Organisation
AS46274
US flagPenn Medicine
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

Prefix128.91.0.0/16
Range From128.91.0.0
Range To128.91.255.255
Prefix130.91.0.0/16
Range From130.91.0.0
Range To130.91.255.255
Prefix158.130.0.0/16
Range From158.130.0.0
Range To158.130.255.255
Prefix165.123.0.0/16
Range From165.123.0.0
Range To165.123.255.255
Prefix192.5.44.0/24
Range From192.5.44.0
Range To192.5.44.255
Showing 5 of 6
IPv6 Active Prefixes
Prefix2607:f470::/32
Range From2607:f470::
Range To2607:f470:ffff:ffff:ffff:ffff:ffff:ffff
Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organisation. This tool provides a comprehensive ownership and connectivity report for any given AS number.