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ASN Lookup Tool
AS26211 PROOFPOINT-ASN-US-WEST

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS26211
Organisation
Proofpoint, Inc.
Name
PROOFPOINT-ASN-US-WEST
Total IPv4 Addresses
12,544
Total IPv4 Prefixes
44
Total IPv6 Prefixes
3
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#8,236 out of 77,675
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
2007-10-31
Registration Last Change
2012-02-24
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
AS209
US flagCenturyLink Communications, LLC
AS3561
US flagCenturyLink Communications, LLC
AS1299
SE flagArelion Sweden AB
Showing 5 of 7
IPv4 Active Prefixes

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

Prefix66.159.227.0/24
Range From66.159.227.0
Range To66.159.227.255
Prefix66.159.229.0/24
Range From66.159.229.0
Range To66.159.229.255
Prefix66.159.240.0/24
Range From66.159.240.0
Range To66.159.240.255
Prefix66.159.241.0/24
Range From66.159.241.0
Range To66.159.241.255
Prefix66.159.248.0/23
Range From66.159.248.0
Range To66.159.249.255
Showing 5 of 44
IPv6 Active Prefixes
Prefix2620:100:9000::/47
Range From2620:100:9000::
Range To2620:100:9001:ffff:ffff:ffff:ffff:ffff
Prefix2620:100:900c::/48
Range From2620:100:900c::
Range To2620:100:900c:ffff:ffff:ffff:ffff:ffff
Prefix2620:100:900d::/48
Range From2620:100:900d::
Range To2620:100:900d: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.