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ASN Lookup Tool
AS20 UR

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS20
Organisation
University of Rochester
Name
UR
Total IPv4 Addresses
66,048
Total IPv4 Prefixes
3
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#2,858 out of 79,103
Registry
Arin
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
1984-07-27
Registration Last Change
2019-10-01
Receiving From
ASN
Organisation
AS3356
US flagLevel 3 Parent, LLC
AS174
US flagCogent Communications, LLC
AS3630
US flagNYSERNet
AS3754
US flagNYSERNet
Transit To
ASN
Organisation
AS59588
IQ flagAl Atheer Telecommunication-Iraq Co. Ltd. Incorp..
IPv4 Active Prefixes
PrefixRange FromRange To
128.151.0.0/16128.151.0.0128.151.255.255
192.5.53.0/24192.5.53.0192.5.53.255
199.89.214.0/24199.89.214.0199.89.214.255
IPv6 Active Prefixes
PrefixRange FromRange To
2620:107:a000::/402620:107:a000::2620:107:a0ff:ffff:ffff:ffff:ffff:ffff