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ASN Lookup Tool
AS4268 CERNET-ASN-BLOCK

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS4268
Organisation
California Education and Research Federation Net..
Name
CERNET-ASN-BLOCK
Total IPv4 Addresses
32768
Total IPv4 Prefixes
21
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#5,088 out of 76,282
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1995-01-18
Registration Last Change
1995-01-18
Receiving From

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

ASN
Organisation
AS7018
US flagAT&T Services, Inc.
IPv4 Active Prefixes

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

Prefix134.24.100.0/24
Range From134.24.100.0
Range To134.24.100.255
Prefix134.24.123.0/24
Range From134.24.123.0
Range To134.24.123.255
Prefix134.24.125.0/24
Range From134.24.125.0
Range To134.24.125.255
Prefix134.24.153.0/24
Range From134.24.153.0
Range To134.24.153.255
Prefix199.105.192.0/22
Range From199.105.192.0
Range To199.105.195.255
Showing 5 of 21
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.