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ASN Lookup Tool
AS3742 SEMAPHORE-1

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS3742
Organisation
Semaphore Corporation
Name
SEMAPHORE-1
Total IPv4 Addresses
19,968
Total IPv4 Prefixes
22
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#6,391 out of 78,607
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1994-08-01
Registration Last Change
2003-01-15
Receiving From

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

ASN
Organisation
AS2914
US flagNTT America, Inc.
AS6461
US flagZayo Bandwidth
AS7575
AU flagAustralian Academic and Research Network
AS6939
US flagHurricane Electric LLC
AS1299
SE flagArelion Sweden AB
Showing 5 of 16
Transit To

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

 

ASN
Organisation
AS22030
US flagZipcon LLC
AS394492
US flagUS Electrodynamics, Inc.
IPv4 Active Prefixes

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

Prefix63.249.0.0/21
Range From63.249.0.0
Range To63.249.7.255
Prefix63.249.8.0/22
Range From63.249.8.0
Range To63.249.11.255
Prefix63.249.12.0/24
Range From63.249.12.0
Range To63.249.12.255
Prefix63.249.24.0/24
Range From63.249.24.0
Range To63.249.24.255
Prefix63.249.26.0/23
Range From63.249.26.0
Range To63.249.27.255
Showing 5 of 22
IPv6 Active Prefixes
Prefix2001:5d8::/32
Range From2001:5d8::
Range To2001:5d8:ffff:ffff:ffff:ffff:ffff:ffff