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ASN Lookup Tool
AS101 WASH-NSF-AS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS101
Organisation
University of Washington
Name
WASH-NSF-AS
Total IPv4 Addresses
11,776
Total IPv4 Prefixes
13
Total IPv6 Prefixes
5
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#8,724 out of 79,160
Registry
Arin
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
Registration Last Change
2021-10-02
Receiving From
ASN
Organisation
AS3356
US flagLevel 3 Parent, LLC
AS174
US flagCogent Communications, LLC
AS852
CA flagTELUS Communications Inc.
AS2497
JP flagInternet Initiative Japan Inc.
AS2152
US flagCENIC
Showing 5 of 29
Transit To
ASN
Organisation
AS4216200021
WORLD flagPrivate Use AS
AS4216200001
WORLD flagPrivate Use AS
AS4200000284
WORLD flagPrivate Use AS
AS4204000820
WORLD flagPrivate Use AS
AS4201000163
WORLD flagPrivate Use AS
Showing 5 of 242
IPv4 Active Prefixes
PrefixRange FromRange To
83.142.136.0/2183.142.136.083.142.143.255
193.218.148.0/22193.218.148.0193.218.151.255
194.54.16.0/22194.54.16.0194.54.19.255
195.206.112.0/22195.206.112.0195.206.115.255
207.231.240.0/23207.231.240.0207.231.241.255
Showing 5 of 13
IPv6 Active Prefixes
PrefixRange FromRange To
2001:504:b::/482001:504:b::2001:504:b:ffff:ffff:ffff:ffff:ffff
2001:1860::/342001:1860::2001:1860:3fff:ffff:ffff:ffff:ffff:ffff
2001:1860:4000::/342001:1860:4000::2001:1860:7fff:ffff:ffff:ffff:ffff:ffff
2001:1860:8000::/342001:1860:8000::2001:1860:bfff:ffff:ffff:ffff:ffff:ffff
2001:1860:c000::/342001:1860:c000::2001:1860:ffff:ffff:ffff:ffff:ffff:ffff