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ASN Lookup Tool
AS111 BOSTONU-AS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS111
Organisation
Boston University
Name
BOSTONU-AS
Total IPv4 Addresses
166,144
Total IPv4 Prefixes
24
Total IPv6 Prefixes
2
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#1,286 out of 79,057
Registry
Arin
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
1987-05-11
Registration Last Change
2023-06-07
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
AS10578
US flagHarvard University
AS11537
US flagInternet2
AS11164
US flagInternet2
Transit To

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

 

ASN
Organisation
AS10961
US flagBoston GigaPoP
IPv4 Active Prefixes

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

PrefixRange FromRange To
128.197.0.0/17128.197.0.0128.197.127.255
128.197.128.0/21128.197.128.0128.197.135.255
128.197.136.0/24128.197.136.0128.197.136.255
128.197.137.0/24128.197.137.0128.197.137.255
128.197.138.0/23128.197.138.0128.197.139.255
Showing 5 of 24
IPv6 Active Prefixes
PrefixRange FromRange To
2610:58::/322610:58::2610:58:ffff:ffff:ffff:ffff:ffff:ffff
2631:5000::/282631:5000::2631:500f:ffff:ffff:ffff:ffff:ffff:ffff