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ASN Lookup Tool
AS3 MIT-GATEWAYS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS3
Organisation
Massachusetts Institute of Technology
Name
MIT-GATEWAYS
Total IPv4 Addresses
2034360
Total IPv4 Prefixes
323
Total IPv6 Prefixes
8
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#216 out of 76,397
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1970-01-01
Registration Last Change
2010-09-27
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
AS7015
US flagComcast Cable Communications, LLC
AS293
US flagESnet
AS6939
US flagHurricane Electric LLC
Showing 5 of 20
IPv4 Active Prefixes

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

Prefix18.0.0.0/16
Range From18.0.0.0
Range To18.0.255.255
Prefix18.1.0.0/24
Range From18.1.0.0
Range To18.1.0.255
Prefix18.1.1.0/24
Range From18.1.1.0
Range To18.1.1.255
Prefix18.1.2.0/23
Range From18.1.2.0
Range To18.1.3.255
Prefix18.1.4.0/23
Range From18.1.4.0
Range To18.1.5.255
Showing 5 of 323
IPv6 Active Prefixes
Prefix2603:4000::/32
Range From2603:4000::
Range To2603:4000:ffff:ffff:ffff:ffff:ffff:ffff
Prefix2603:4001::/32
Range From2603:4001::
Range To2603:4001:ffff:ffff:ffff:ffff:ffff:ffff
Prefix2603:4007::/32
Range From2603:4007::
Range To2603:4007:ffff:ffff:ffff:ffff:ffff:ffff
Prefix2603:4008::/32
Range From2603:4008::
Range To2603:4008:ffff:ffff:ffff:ffff:ffff:ffff
Prefix2603:4009::/32
Range From2603:4009::
Range To2603:4009:ffff:ffff:ffff:ffff:ffff:ffff
Showing 5 of 8
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.