AS24165 — UBBNET-AS-TW UNION BROADBAND NETWORK

AS24165 announces 36 IPv4 prefixes covering 64,256 addresses and 3 IPv6 prefixes.

About this network

UBBNET-AS-TW is the AS handle for Union Broadband Network, a Taiwanese broadband operator.

What it's used for

• The address space carries residential dynamic IP addresses, evidenced by reverse DNS entries such as 49-159-116-0.dynamic.elinx.com.tw and 49-158-106-0.dynamic.elinx.com.tw.
• The network announces 64,256 IPv4 addresses across 36 prefixes and 3 IPv6 prefixes, while maintaining only 1 observed neighbour, a ratio characteristic of an access or eyeball network rather than a transit provider.

Notable

• Registrants for the largest prefixes are consistently IRT-UBBNET-TW or unknown, with netnames uniformly set to UBBNET-NET, aligning with the AS holder identity.
• The address inventory is finely subdivided into numerous /21 and /22 blocks, reflecting a segmented internal estate for a consumer broadband service.

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

Announced prefixes

• 45.64.34.0/24
• 49.158.104.0/21
• 49.158.128.0/21
• 49.158.220.0/22
• 49.158.244.0/22
• 49.159.72.0/21
• 49.159.96.0/21
• 49.159.112.0/20
• 49.159.208.0/21
• 49.159.248.0/22
• 61.58.112.0/21
• 61.58.124.0/22
• 61.61.213.0/24
• 61.61.228.0/24
• 61.64.8.0/21
• 61.64.16.0/21
• 115.165.196.0/22
• 115.165.200.0/21
• 115.165.208.0/20
• 115.165.232.0/22
• 115.165.248.0/21
• 122.100.96.0/21
• 122.254.0.0/19
• 122.254.32.0/22
• 124.6.0.0/21
• 124.6.12.0/22
• 124.6.16.0/22
• 180.218.40.0/21
• 180.218.80.0/22
• 180.218.88.0/22
• 180.218.96.0/21
• 180.218.104.0/22
• 180.218.112.0/22
• 180.218.120.0/22
• 180.218.200.0/21
• 203.77.40.0/21
• 2407:4b00:6000::/36
• 2407:4b00:fd06::/48
• 2407:4b00:ff06::/48

Upstream networks

• AS9924 Taiwan Fixed Network, Telco and Network Service Provider.

Downstream networks

• AS14789 Cloudflare, Inc.

Adjacent networks

• AS9924 Taiwan Fixed Network, Telco and Network Service Provider.
• AS14789 Cloudflare, Inc.