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ASN Lookup Tool
AS5653 UCSF

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS5653
Organisation
University of California San Francisco
Name
UCSF
Total IPv4 Addresses
196178
Total IPv4 Prefixes
61
Total IPv6 Prefixes
2
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#1,171 out of 76,445
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1995-07-27
Registration Last Change
2023-08-31
Receiving From

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

ASN
Organisation
AS2152
US flagCalifornia State University, Office of the Chanc..
AS6461
US flagZayo Bandwidth
AS5653
US flagUniversity of California San Francisco
AS2153
US flagCalifornia State University, Office of the Chanc..
Transit To

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

 

ASN
Organisation
AS5653
US flagUniversity of California San Francisco
AS65101
WORLD flagPrivate Use AS
IPv4 Active Prefixes

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

Prefix64.54.0.0/22
Range From64.54.0.0
Range To64.54.3.255
Prefix64.54.4.0/23
Range From64.54.4.0
Range To64.54.5.255
Prefix64.54.6.0/24
Range From64.54.6.0
Range To64.54.6.255
Prefix64.54.7.0/24
Range From64.54.7.0
Range To64.54.7.255
Prefix64.54.8.0/24
Range From64.54.8.0
Range To64.54.8.255
Showing 5 of 61
IPv6 Active Prefixes
Prefix2607:f380::118:9a40:3700/121
Range From2607:f380::118:9a40:3700
Range To2607:f380::118:9a40:377f
Prefix2607:f380:1::118:9a41:7980/123
Range From2607:f380:1::118:9a41:7980
Range To2607:f380:1::118:9a41:799f
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.