AS9255 — CONNECTPLUS-AS Singapore Telecom

AS9255 announces 32 IPv4 prefixes covering 21,248 addresses and 44 IPv6 prefixes.

About this network

AS9255 (CONNECTPLUS-AS) is registered to Singapore Telecommunications (Singtel) and carries the name of ConnectPlus, Singtel's managed IP-VPN and enterprise connectivity product line. It sits inside the Singtel group alongside the carrier's other autonomous systems and takes its routes through them.

What it's used for

The evidence points two ways, and both are worth stating. RIS sees 38 IPv4 prefixes carrying 25,088 addresses, 50 IPv6 prefixes, and 41 observed neighbours.

The IPv6 side reads as enterprise service: 50-odd prefixes, almost all individual /48s out of 2001:c20::, which is the classic shape of per-customer assignments handed to sites on a managed VPN. The long tail of the IPv4 table says the same thing — single /24s pulled from unrelated ranges (194.124.188.0/24, 158.155.250.0/24, 157.234.216.0/24, 103.102.235.0/24), the kind of scattered small blocks that accumulate when a carrier routes address space on behalf of business customers.

But the largest blocks tell a different story. The 151.192.0.0 /21s and the 118.201.16.0/20 resolve under singnet.com.sg with broadband-style templated names (bb151-192-16-5.singnet.com.sg). SingNet is Singtel's consumer ISP brand. So the same AS is announcing space that carries SingNet's broadband naming convention alongside what look like enterprise customer routes. The honest reading is that this is a Singtel-group AS whose inventory is mixed, and that the ConnectPlus name describes the product it was created for rather than the whole of what it now carries.

Notable

• Singtel operates several autonomous systems; AS9255 takes transit from the group's own networks rather than standing alone.
• Do not read the SingNet PTRs as making this the consumer eyeball AS, and do not read the ConnectPlus handle as making it purely enterprise. The routing table contains both.

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

Announced prefixes

• 103.102.235.0/24
• 118.201.12.0/22
• 118.201.81.0/24
• 122.200.28.0/24
• 128.106.8.0/23
• 128.106.84.0/22
• 128.106.156.0/23
• 138.103.32.0/22
• 143.223.80.0/23
• 144.46.124.0/23
• 151.192.0.0/19
• 151.192.32.0/21
• 151.192.48.0/24
• 157.234.216.0/24
• 158.155.250.0/24
• 180.255.29.0/24
• 185.82.163.0/24
• 194.124.188.0/24
• 203.125.128.0/24
• 203.126.8.0/24
• 203.126.130.0/24
• 203.126.133.0/24
• 203.126.134.0/24
• 203.126.147.0/24
• 203.127.3.0/24
• 203.127.10.0/24
• 203.127.31.0/24
• 203.127.104.0/24
• 203.127.181.0/24
• 203.127.201.0/24
• 203.127.202.0/24
• 206.221.40.0/24
• 2001:c20:4849::/48
• 2001:c20:485e::/47
• 2001:c20:486c::/48
• 2001:c20:4871::/48
• 2001:c20:4874::/48
• 2001:c20:487e::/48
• 2001:c20:4884::/48
• 2001:c20:4887::/48
• 2001:c20:488c::/47
• 2001:c20:488f::/48
• 2001:c20:4892::/48
• 2001:c20:4894::/48
• 2001:c20:489a::/48
• 2001:c20:48a0::/48
• 2001:c20:48a6::/48
• 2001:c20:48ae::/47
• 2001:c20:48b0::/48
• 2001:c20:48b8::/48
• 2001:c20:48c2::/48
• 2001:c20:48c4::/48
• 2001:c20:48c6::/48
• 2001:c20:48cc::/48
• 2001:c20:48d6::/48
• 2001:c20:48da::/47
• 2001:c20:48dc::/48
• 2001:c20:48e6::/47
• 2001:c20:48e9::/48
• 2001:c20:48ea::/48
• 2001:c20:48f0::/48
• 2001:c20:c816::/48
• 2001:c20:c819::/48
• 2001:c20:c81a::/48
• 2001:c20:c81d::/48
• 2001:c20:c81e::/47
• 2001:c20:c824::/46
• 2001:c20:c831::/48
• 2001:c20:c835::/48
• 2001:c20:c839::/48
• 2001:c20:c83f::/48
• 2001:c20:c844::/48
• 2001:c20:c847::/48
• 2001:c20:c84e::/48
• 2001:c20:c856::/48
• 2001:df0:30f::/48

Upstream networks

• AS3758 SingNet

Downstream networks

• AS18402 NATIONAL LIBRARY BOARD
• AS12222 Akamai Technologies, Inc.
• AS58562 5 Ang Mo Kio Street 62
• AS31747 BlackRock Financial Management, Inc.
• AS137003 INSEAD
• AS400696 MIBURA, INC.
• AS205080 Societe Internationale de Telecommunications Aeronautiques
• AS3573 Accenture LLP
• AS139895 Air Liquide Industrial Services Pte Ltd
• AS133422 Aviva Asia Pte Ltd
• AS26685 Franklin Resources
• AS19661 Susquehanna International Group, LLP
• AS140939 Tenpage Pte Ltd
• AS133728 Chubb Asia Pacific Pte Ltd
• AS133456 ALAGAS NETWORK PTE. LTD.
• AS18723 Seagate Technology LLC
• AS26940 Levi Strauss & Co.
• AS139617 ISEAS Yusof Ishak Institute
• AS55426 Amphenol FCI Asia Pte Ltd
• AS142250 Oversea-Chinese Banking Corporation Limited
• AS134407 MediaCorp Pte Ltd
• AS151334 Land Transport Authority
• AS212581 SGX FX SYSTEMS UK LIMITED
• AS138458 NEC ASIA PACIFIC PTE LTD
• AS16477 Nielsen Consumer LLC

Adjacent networks

• AS3758 SingNet
• AS18402 NATIONAL LIBRARY BOARD
• AS12222 Akamai Technologies, Inc.
• AS58562 5 Ang Mo Kio Street 62
• AS31747 BlackRock Financial Management, Inc.
• AS137003 INSEAD
• AS205080 Societe Internationale de Telecommunications Aeronautiques
• AS400696 MIBURA, INC.
• AS3573 Accenture LLP
• AS139895 Air Liquide Industrial Services Pte Ltd
• AS140939 Tenpage Pte Ltd
• AS133728 Chubb Asia Pacific Pte Ltd
• AS133422 Aviva Asia Pte Ltd
• AS133456 ALAGAS NETWORK PTE. LTD.
• AS18723 Seagate Technology LLC
• AS19661 Susquehanna International Group, LLP
• AS26940 Levi Strauss & Co.
• AS26685 Franklin Resources
• AS139617 ISEAS Yusof Ishak Institute
• AS55426 Amphenol FCI Asia Pte Ltd
• AS142250 Oversea-Chinese Banking Corporation Limited
• AS134407 MediaCorp Pte Ltd
• AS151334 Land Transport Authority
• AS212581 SGX FX SYSTEMS UK LIMITED
• AS138458 NEC ASIA PACIFIC PTE LTD