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ASN Lookup Tool
AS3356 LEVEL3

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS3356
Organisation
Level 3 Parent, LLC
Name
LEVEL3
Total IPv4 Addresses
28293919
Total IPv4 Prefixes
9833
Total IPv6 Prefixes
523
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#14 out of 76,436
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
2000-03-10
Registration Last Change
2018-02-20
Receiving From

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

ASN
Organisation
AS7018
US flagAT&T Services, Inc.
AS17676
JP flagSoftBank Corp.
AS701
US flagVerizon Business
AS3320
DE flagDeutsche Telekom AG
AS7922
US flagComcast Cable Communications, LLC
Showing 5 of 151
Transit To

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

 

ASN
Organisation
AS4294900998
WORLD flagPrivate Use AS
AS51078
FR flagZIOSTING SAS
AS16516
US flagElevance Health, Inc.
AS23765
US flagElectronic Arts Inc.
AS30410
US flagFirst Coast Service Options, Inc.
Showing 5 of 7515
IPv4 Active Prefixes

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

Prefix4.0.0.0/16
Range From4.0.0.0
Range To4.0.255.255
Prefix4.1.0.0/18
Range From4.1.0.0
Range To4.1.63.255
Prefix4.1.64.0/21
Range From4.1.64.0
Range To4.1.71.255
Prefix4.1.72.0/22
Range From4.1.72.0
Range To4.1.75.255
Prefix4.1.76.0/24
Range From4.1.76.0
Range To4.1.76.255
Showing 5 of 9833
IPv6 Active Prefixes
Prefix2001:428:5805::/48
Range From2001:428:5805::
Range To2001:428:5805:ffff:ffff:ffff:ffff:ffff
Prefix2001:450:2015::/48
Range From2001:450:2015::
Range To2001:450:2015:ffff:ffff:ffff:ffff:ffff
Prefix2001:13b0:801b::/48
Range From2001:13b0:801b::
Range To2001:13b0:801b:ffff:ffff:ffff:ffff:ffff
Prefix2001:13b2::/33
Range From2001:13b2::
Range To2001:13b2:7fff:ffff:ffff:ffff:ffff:ffff
Prefix2001:13b2:8000::/47
Range From2001:13b2:8000::
Range To2001:13b2:8001:ffff:ffff:ffff:ffff:ffff
Showing 5 of 523
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.