AS45158 — SYNTELPTYLTD-AU - TASMANET

AS45158 announces 7 IPv4 prefixes covering 4,352 addresses and 1 IPv6 prefixes.

About this network

FIELD-AU is the AS handle for TasmaNet, an Australian internet service provider.

What it's used for

• The address space carries TasmaNet infrastructure and leased customer blocks, evidenced by netnames TASMANETPTYLTD-AU, VETTRAK-AU, CCAMLR-AU, BLUNDSTONE-AU, and ISW-AU.
• With 4352 IPv4 addresses, 15 IPv6 prefixes, and 10 observed neighbours, the ratio indicates an access network serving end-users and business clients rather than a transit provider.
• Traffic consists of residential broadband subscribers and business endpoints, including specific corporate clients like Blundstone Australia and ISW Technology, as well as the Commission for the Conservation of Antarctic Marine Living Resources.

Notable

• Registrants for the largest prefixes align with the announcer, listing Tasmanet Administrator and TASMANET for the primary blocks.
• The inventory includes /24 blocks registered to distinct third-party organisations such as VETtrak Pty Ltd, Blundstone Australia Pty Ltd, and ISW Technology Pty Ltd, indicating leased space or post-acquisition history.
• The address inventory is a mix of larger /22 and /23 blocks for TasmaNet and smaller /24 blocks for specific corporate entities.

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

Announced prefixes

• 103.102.118.0/24
• 103.251.172.0/22
• 120.29.240.0/21
• 203.13.22.0/24
• 203.16.175.0/24
• 203.17.166.0/24
• 203.33.128.0/24
• 2407:1e00::/32

Upstream networks

• AS64098 TASMANET

Downstream networks

• AS135612 Hydro-Electric Corporation
• AS142422 Hobart City Council
• AS131214 Interact Hosting Pty Ltd
• AS38549 Viewbank Rise Networks
• AS136240 TT-Line Company Pty Ltd
• AS135672 GRANGE RESOURCES (TASMANIA) PTY LTD
• AS132836 TASMANET
• AS12041 Afilias, Inc.
• AS132691 Anglicare Tasmania Inc

Adjacent networks

• AS64098 TASMANET
• AS135612 Hydro-Electric Corporation
• AS142422 Hobart City Council
• AS131214 Interact Hosting Pty Ltd
• AS38549 Viewbank Rise Networks
• AS135672 GRANGE RESOURCES (TASMANIA) PTY LTD
• AS132836 TASMANET
• AS136240 TT-Line Company Pty Ltd
• AS12041 Afilias, Inc.
• AS132691 Anglicare Tasmania Inc

Routing security

• RPKI: 7 valid, 0 invalid and 5 not-found announcements; 18 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 536 route objects.
• Listed in as-sets: AS-HURRICANEV6, AS-KDDCUSTOMER2, AS-OPTUS, AS-TELSTRA-INTL-CUSTOMERS-4637, AS45158:AS-TRANSIT, AS4739:AS-CUSTOMERS, AS64098:AS-INTERNAL, AS7606:AS-SA-IX.

Internet exchanges

• Edge Internet Exchange - Melbourne — Melbourne, Australia