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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
6,992,533
Total IPv4 Prefixes
499
Total IPv6 Prefixes
166
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#73 out of 77,684
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
AS701
US flagVerizon Business
AS20115
US flagCharter Communications
AS3257
US flagGTT Communications Inc.
AS6461
US flagZayo Bandwidth
AS6453
US flagTATA COMMUNICATIONS (AMERICA) INC
Showing 5 of 10
Transit To

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

 

ASN
Organisation
AS16978
US flagZEFR, Inc
AS3456
US flagCharter Communications Inc
AS11188
US flagLOS ANGELES COUNTY - INTERNAL SERVICESDIVISION
AS36315
US flagServpac Inc.
AS32480
US flagLoma Linda University Medical Center
Showing 5 of 133
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 499
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 166
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.