AS4637 — ASN-TELSTRA-GLOBAL Telstra Global

AS4637 announces 346 IPv4 prefixes covering 1,230,336 addresses and 4 IPv6 prefixes.

About this network

ASN-TELSTRA-GLOBAL is the international IP backbone of Telstra, Australia's largest telecom, operated through its Hong Kong-registered international arm.

What it's used for

• Global IP transit and wholesale connectivity. This is the AS that carries Telstra's international traffic and sells transit to carriers, ISPs, and enterprises across Asia-Pacific and beyond.

Notable

• A carrier backbone, not an eyeball network. Telstra's Australian retail broadband customers sit under different AS numbers; this one is the international wholesale business.
• Telstra International's reach rests on one of the largest subsea cable portfolios in the Asia-Pacific, which is why so many routes between Asia and the rest of the world traverse this AS.

Interesting

• The million-plus addresses announced here make it one of the biggest networks in the APNIC-administered AS block.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 5.226.185.0/24
• 13.142.0.0/16
• 13.143.0.0/20
• 13.143.32.0/20
• 31.58.172.0/22
• 31.59.76.0/23
• 37.153.152.0/24
• 42.99.128.0/17
• 58.145.195.0/24
• 58.145.196.0/24
• 58.145.198.0/23
• 58.145.200.0/22
• 58.145.225.0/24
• 58.145.228.0/24
• 58.145.234.0/24
• 61.8.32.0/24
• 61.8.34.0/23
• 61.8.36.0/22
• 61.8.40.0/21
• 61.8.48.0/20
• 61.14.128.0/19
• 61.14.160.0/21
• 61.14.168.0/22
• 61.14.173.0/24
• 61.14.174.0/23
• 61.14.176.0/20
• 61.87.128.0/18
• 63.133.192.0/20
• 63.160.0.0/24
• 63.160.4.0/23
• 63.160.32.0/21
• 63.160.224.0/19
• 63.161.16.0/20
• 63.161.224.0/19
• 63.164.160.0/19
• 63.172.128.0/19
• 63.175.32.0/19
• 64.32.152.0/21
• 64.50.136.0/21
• 64.145.128.0/17
• 65.160.160.0/19
• 65.161.96.0/19
• 65.163.96.0/19
• 65.166.32.0/19
• 65.166.192.0/19
• 65.167.0.0/19
• 65.167.160.0/19
• 65.170.224.0/19
• 65.171.32.0/19
• 65.171.192.0/19
• 65.173.160.0/19
• 65.174.32.0/19
• 66.17.72.0/21
• 66.200.240.0/20
• 74.3.0.0/17
• 81.172.116.0/24
• 82.21.101.0/24
• 82.21.134.0/23
• 82.21.144.0/24
• 82.29.26.0/24
• 82.29.75.0/24
• 88.223.47.0/24
• 91.209.48.0/24
• 95.134.136.0/22
• 95.170.21.0/24
• 95.170.24.0/24
• 95.170.31.0/24
• 95.173.55.0/24
• 101.167.176.0/20
• 101.167.192.0/19
• 102.129.166.0/24
• 104.132.12.0/24
• 104.234.104.0/24
• 104.234.184.0/24
• 116.92.4.0/24
• 116.92.8.0/23
• 116.92.72.0/24
• 120.138.192.0/18
• 121.91.226.0/23
• 122.8.40.0/22
• 122.152.128.0/19
• 122.152.160.0/22
• 122.152.165.0/24
• 122.152.166.0/23
• 122.152.168.0/21
• 122.152.176.0/20
• 125.252.64.0/22
• 125.252.68.0/24
• 125.252.70.0/23
• 125.252.72.0/22
• 125.252.76.0/23
• 125.252.78.0/24
• 125.252.80.0/20
• 125.252.96.0/23
• 125.252.98.0/24
• 125.252.100.0/22
• 125.252.104.0/21
• 125.252.112.0/20
• 134.159.0.0/18
• 134.159.64.0/20

and 250 more.

Upstream networks

• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS3356 Level 3 Parent, LLC
• AS3257 GTT Communications Inc.
• AS9002 RETN Limited
• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS577 Bell Canada
• AS3303 Swisscom (Schweiz) AG
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS6461 Zayo Bandwidth
• AS5511 Orange S.A.
• AS3491 PCCW Global (HK) Ltd.
• AS2497 Internet Initiative Japan Inc.
• AS1221 Telstra Limited
• AS12552 GlobalConnect AB
• AS11164 Internet2
• AS31500 Global Network Management Inc
• AS1257 Tele2 Sverige AB
• AS7473 Singapore Telecommunications Ltd
• AS1273 IDDQD-AS
• AS24482 SG.GS
• AS4635 Hong Kong Internet Exchange--Route Server 1
• AS20473 The Constant Company, LLC
• AS2914 NTT America, Inc.
• AS35280 F5 Networks SARL

Downstream networks

• AS1221 Telstra Limited
• AS16509 Amazon.com, Inc.
• AS19551 Incapsula Inc
• AS55547 Unit D,E,F,G 28th Floor
• AS18403 FPT Telecom Company
• AS38478 SunnyVision Limited
• AS20940 Akamai International B.V.
• AS45177 Devoli
• AS18186 Nebula Global LLC
• AS10024 LGA International
• AS53813 ZSCALER, INC.
• AS2514 NTT PC Communications, Inc.
• AS13335 Cloudflare, Inc.
• AS54113 Fastly, Inc.
• AS12041 Afilias, Inc.
• AS7029 Windstream Communications LLC
• AS9009 M247 Europe SRL
• AS18001 Dialog Axiata PLC.
• AS20115 Charter Communications LLC
• AS4775 Globe Telecoms
• AS4766 Korea Telecom
• AS6079 RCN
• AS133847 Anpple Tech Enterprise
• AS15830 Equinix (EMEA) Acquisition Enterprises B.V.
• AS40676 Psychz Networks

Adjacent networks

• AS1221 Telstra Limited
• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS3257 GTT Communications Inc.
• AS1299 Arelion Sweden AB
• AS577 Bell Canada
• AS9002 RETN Limited
• AS6461 Zayo Bandwidth
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS64049 Reliance Jio Infocomm Pte Ltd Singapore
• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS11164 Internet2
• AS5511 Orange S.A.
• AS38082 True International Gateway Co., Ltd.
• AS18403 FPT Telecom Company
• AS12552 GlobalConnect AB
• AS58453 China Mobile International Limited
• AS12956 TELEFONICA GLOBAL SOLUTIONS SL
• AS2497 Internet Initiative Japan Inc.
• AS19551 Incapsula Inc
• AS398465 Rackdog, LLC
• AS16509 Amazon.com, Inc.
• AS9498 BHARTI Airtel Ltd.
• AS1257 Tele2 Sverige AB
• AS701 Verizon Business

Internet exchanges

• OpenIXP Internet exchange Point — Jakarta, Indonesia
• DE-CIX Frankfurt — Frankfurt, Germany
• LINX LON1 — London, United Kingdom
• AMS-IX Amsterdam — Amsterdam, Netherlands
• France-IX Paris — Paris, France
• Equinix Internet Exchange Singapore — Singapore, Singapore
• Equinix Internet Exchange Ashburn — Ashburn, United States
• BroadBand Internet eXchange Tokyo — Tokyo, Japan
• Coresite - Any2 West — Los Angeles, United States
• Any2 California — Los Angeles, United States
• Hong Kong Internet Exchange — Hong Kong, China
• JPIX Tokyo — Tokyo, Japan
• DE-CIX New York — New York, United States
• DE-CIX Mumbai — Mumbai, India
• Equinix Internet Exchange Hong Kong — Hong Kong, China
• Equinix Internet Exchange San Jose (Bay Area) — San Jose, United States
• Taipei Internet Exchange (TPIX) — Taipei, Taiwan
• Malaysia Internet Exchange — Kuala Lumpur, Malaysia
• National Internet Exchange of India - Mumbai — Mumbai, India
• BroadBand Internet eXchange Singapore — Singapore, Singapore
• Equinix Internet Exchange Tokyo — Tokyo, Japan
• National Internet Exchange of India - New Delhi — New Delhi, India
• GetaFIX Manila — Manila, Philippines
• JPIX Osaka — Osaka, Japan
• UAE-IX — Dubai, United Arab Emirates
• New Zealand Internet Exchange Auckland — Auckland, New Zealand
• Extreme IX Chennai — Chennai, India
• Auckland Peering Exchange — Auckland, New Zealand
• Equinix Internet Exchange Los Angeles — Los Angeles, United States
• Equinix Internet Exchange Palo Alto — Palo Alto, United States
• Equinix Los Angeles IBX — Los Angeles, United States
• Korea Internet Neutral Exchange KINX — Seoul, South Korea
• Edge Internet Exchange - Auckland — Auckland, New Zealand
• National Internet Exchange of India - Chennai — Chennai, India
• DE-CIX Chennai — Chennai, India
• BroadBand Internet eXchange Thailand — Bangkok, Thailand
• Philippine Open Internet Exchange — Manila, Philippines
• Extreme IX Bangalore — Bangalore, India