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ASN Lookup Tool
AS1221 ASN-TELSTRA

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS1221
Organisation
Telstra Corporation Limited
Name
ASN-TELSTRA
Total IPv4 Addresses
13394689
Total IPv4 Prefixes
332
Total IPv6 Prefixes
3
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#36 out of 76,357
Registry
Apnic
Registered Country
AU flag AU
Registered Country Name
Australia
Registered Date
NA
Registration Last Change
2020-12-07
Receiving From

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

ASN
Organisation
AS24115
SG flagEquinix Asia Pacific Pte Ltd
AS17676
JP flagSoftBank Corp.
AS3356
US flagLevel 3 Parent, LLC
AS174
US flagCogent Communications
AS3257
US flagGTT Communications Inc.
Showing 5 of 79
Transit To

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

 

ASN
Organisation
AS45824
AU flagDatacomIT
AS64902
WORLD flagPrivate Use AS
AS4200000210
WORLD flagPrivate Use AS
AS4206346011
WORLD flagPrivate Use AS
AS4216200021
WORLD flagPrivate Use AS
Showing 5 of 572
IPv4 Active Prefixes

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

Prefix1.120.0.0/13
Range From1.120.0.0
Range To1.127.255.255
Prefix1.128.0.0/11
Range From1.128.0.0
Range To1.159.255.255
Prefix58.160.0.0/12
Range From58.160.0.0
Range To58.175.255.255
Prefix60.224.0.0/13
Range From60.224.0.0
Range To60.231.255.255
Prefix61.8.0.0/19
Range From61.8.0.0
Range To61.8.31.255
Showing 5 of 332
IPv6 Active Prefixes
Prefix2001:df0:201::/48
Range From2001:df0:201::
Range To2001:df0:201:ffff:ffff:ffff:ffff:ffff
Prefix2001:8000::/20
Range From2001:8000::
Range To2001:8fff:ffff:ffff:ffff:ffff:ffff:ffff
Prefix2401:a480::/48
Range From2401:a480::
Range To2401:a480:0:ffff:ffff:ffff:ffff:ffff
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.