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ASN Lookup Tool
AS27398 AITSL-27398

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS27398
Organisation
Alyeska Information Technology Services LLC
Name
AITSL-27398
Total IPv4 Addresses
3,072
Total IPv4 Prefixes
7
Total IPv6 Prefixes
12
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#18,668 out of 77,682
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
2017-05-12
Registration Last Change
2017-05-12
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS6939
US flagHurricane Electric LLC
AS8047
US flagGENERAL COMMUNICATION, INC.
IPv4 Active Prefixes

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

Prefix74.123.136.0/23
Range From74.123.136.0
Range To74.123.137.255
Prefix74.123.138.0/23
Range From74.123.138.0
Range To74.123.139.255
Prefix162.218.248.0/23
Range From162.218.248.0
Range To162.218.249.255
Prefix162.218.250.0/24
Range From162.218.250.0
Range To162.218.250.255
Prefix162.218.251.0/24
Range From162.218.251.0
Range To162.218.251.255
Showing 5 of 7
IPv6 Active Prefixes
Prefix2602:fed5::/47
Range From2602:fed5::
Range To2602:fed5:1:ffff:ffff:ffff:ffff:ffff
Prefix2602:fed5:2::/47
Range From2602:fed5:2::
Range To2602:fed5:3:ffff:ffff:ffff:ffff:ffff
Prefix2602:fed5:4::/46
Range From2602:fed5:4::
Range To2602:fed5:7:ffff:ffff:ffff:ffff:ffff
Prefix2602:fed5:8::/45
Range From2602:fed5:8::
Range To2602:fed5:f:ffff:ffff:ffff:ffff:ffff
Prefix2602:fed5:10::/44
Range From2602:fed5:10::
Range To2602:fed5:1f:ffff:ffff:ffff:ffff:ffff
Showing 5 of 12
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.