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ASN Lookup Tool
AS20001 TWC-20001-PACWEST

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS20001
Organisation
Charter Communications Inc
Name
TWC-20001-PACWEST
Total IPv4 Addresses
6,733,694
Total IPv4 Prefixes
533
Total IPv6 Prefixes
201
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#76 out of 78,369
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
2001-03-13
Registration Last Change
2018-11-27
Receiving From

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

ASN
Organisation
AS19035
US flagHawaii Internet Exchange
AS7018
US flagAT&T Enterprises, LLC
AS701
US flagVerizon Business
AS3356
US flagLevel 3 Parent, LLC
AS20115
US flagCharter Communications LLC
Showing 5 of 40
Transit To

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

 

ASN
Organisation
AS3456
US flagCharter Communications Inc
AS11188
US flagLOS ANGELES COUNTY - INTERNAL SERVICESDIVISION
AS36315
US flagServpac Inc.
AS32480
US flagLoma Linda University Medical Center
AS30679
US flagCalifornia State Polytechnic University - Pomona..
Showing 5 of 132
IPv4 Active Prefixes

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

Prefix23.177.64.0/24
Range From23.177.64.0
Range To23.177.64.255
Prefix23.240.0.0/14
Range From23.240.0.0
Range To23.243.255.255
Prefix24.24.128.0/17
Range From24.24.128.0
Range To24.24.255.255
Prefix24.25.192.0/19
Range From24.25.192.0
Range To24.25.223.255
Prefix24.25.224.0/19
Range From24.25.224.0
Range To24.25.255.255
Showing 5 of 533
IPv6 Active Prefixes
Prefix2600:5c00:1000::/36
Range From2600:5c00:1000::
Range To2600:5c00:1fff:ffff:ffff:ffff:ffff:ffff
Prefix2600:5c00:2000::/40
Range From2600:5c00:2000::
Range To2600:5c00:20ff:ffff:ffff:ffff:ffff:ffff
Prefix2600:5c00:2100::/41
Range From2600:5c00:2100::
Range To2600:5c00:217f:ffff:ffff:ffff:ffff:ffff
Prefix2600:5c00:2180::/42
Range From2600:5c00:2180::
Range To2600:5c00:21bf:ffff:ffff:ffff:ffff:ffff
Prefix2600:5c00:21c0::/45
Range From2600:5c00:21c0::
Range To2600:5c00:21c7:ffff:ffff:ffff:ffff:ffff
Showing 5 of 201
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.