AS23700 — FASTNET-AS-ID Linknet-Fastnet ASN

AS23700 announces 30 IPv4 prefixes covering 936,448 addresses and 1 IPv6 prefixes.

About this network

FASTNET-AS-ID is the autonomous system for First Media, an Indonesian cable and fiber internet service provider.

What it's used for

• The address space carries residential and business access traffic, evidenced by reverse DNS entries like fm-dyn-118-136-128-0.fast.net.id and netnames such as PTLINK-CGNT-NET-1 and BM-ID.
• With 935,424 IPv4 addresses announced across 32 prefixes and only 8 observed neighbours, the high address-to-neighbour ratio indicates a large access or eyeball network rather than a transit provider.

Notable

• Registrants include IRT-BM-ID for the majority of prefixes and PT. Link Net Tbk for the 149.108.0.0/16, 149.110.0.0/16, and 149.113.0.0/16 blocks, reflecting the corporate structure of the operator.
• The inventory consists of a mix of large /15 and /16 blocks alongside smaller /17 to /23 subdivisions, typical of a major ISP managing diverse customer segments.
• The AS has been visible in routing tables since 2003, indicating a long-standing presence in the Indonesian internet infrastructure.

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

Announced prefixes

• 61.247.0.0/18
• 96.7.60.0/22
• 111.94.0.0/16
• 111.95.0.0/17
• 111.95.128.0/18
• 111.95.192.0/19
• 111.95.224.0/20
• 111.95.240.0/22
• 111.95.250.0/23
• 111.95.252.0/22
• 118.136.0.0/15
• 138.113.251.0/24
• 138.113.252.0/24
• 139.0.32.0/19
• 139.0.64.0/18
• 139.0.128.0/17
• 139.192.0.0/15
• 139.194.0.0/16
• 139.195.32.0/19
• 139.195.64.0/18
• 139.195.128.0/17
• 139.228.0.0/16
• 139.255.128.0/18
• 140.0.0.0/16
• 149.108.0.0/16
• 149.110.0.0/16
• 149.113.0.0/16
• 163.171.195.0/24
• 163.171.223.0/24
• 202.73.96.0/21
• 2404:5600::/32

Upstream networks

• AS7632 Linknet-Exchange ASN
• AS24482 SG.GS
• AS7717 OpenIXP ASN

Downstream networks

• AS56234 PT Naraya Telematika
• AS54994 Meteverse Limited.
• AS9905 Linknet ASN
• AS139341 ACE
• AS142184 PT Lintaslink Media Teknologi

Adjacent networks

• AS7632 Linknet-Exchange ASN
• AS24482 SG.GS
• AS56234 PT Naraya Telematika
• AS54994 Meteverse Limited.
• AS9905 Linknet ASN
• AS139341 ACE
• AS142184 PT Lintaslink Media Teknologi
• AS7717 OpenIXP ASN
• AS138077 PT Abhinawa Sumberdaya Asia

Internet exchanges

• OpenIXP Internet exchange Point — Jakarta, Indonesia
• EdgeNXT Internet Exchange — Jakarta, Indonesia
• Digital Edge EPIX Jakarta — Jakarta, Indonesia