AS17421 — EMOME-NET Mobile Business Group

AS17421 announces 61 IPv4 prefixes covering 1,655,808 addresses and 1 IPv6 prefixes.

About this network

The AS handle EMOME-NET is operated by CHT-Mobile Business Group, the mobile division of Chunghwa Telecom.

What it's used for

• The address space carries mobile subscriber traffic, evidenced by reverse DNS records pointing to emome-ip.hinet.net (e.g., 42-74-0-0.emome-ip.hinet.net).
• The AS announces 1,655,808 IPv4 addresses across 61 prefixes and 43 IPv6 prefixes, while maintaining only 1 observed neighbour, a ratio characteristic of a large access network rather than a transit provider.

Notable

• Registrants for the largest prefixes consistently list CHT-Mobile Business Group and IRT-HINET-AP, aligning with the AS holder identity.
• The address inventory is dominated by large blocks such as 42.72.0.0/13 and 111.80.0.0/14, with finer subdivisions in the 116.59.0.0 and 221.120.0.0 ranges.

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

Announced prefixes

• 42.70.0.0/15
• 42.72.0.0/13
• 111.70.0.0/18
• 111.71.0.0/17
• 111.71.128.0/18
• 111.71.193.0/24
• 111.71.194.0/23
• 111.71.196.0/23
• 111.71.208.0/23
• 111.71.212.0/22
• 111.71.216.0/23
• 111.71.218.0/24
• 111.71.220.0/22
• 111.71.225.0/24
• 111.71.226.0/23
• 111.71.228.0/23
• 111.71.230.0/24
• 111.71.240.0/24
• 111.71.242.0/23
• 111.71.248.0/24
• 111.71.252.0/23
• 111.71.254.0/24
• 111.80.0.0/14
• 114.136.0.0/15
• 116.59.0.0/24
• 116.59.2.0/24
• 116.59.4.0/24
• 116.59.6.0/24
• 116.59.8.0/21
• 116.59.16.0/20
• 116.59.48.0/20
• 116.59.64.0/18
• 116.59.128.0/17
• 211.79.33.0/24
• 211.79.34.0/23
• 211.79.36.0/23
• 211.79.38.0/24
• 211.79.40.0/23
• 211.79.42.0/24
• 211.79.47.0/24
• 221.120.0.0/20
• 221.120.19.0/24
• 221.120.20.0/23
• 221.120.23.0/24
• 221.120.30.0/24
• 221.120.32.0/23
• 221.120.34.0/24
• 221.120.36.0/23
• 221.120.38.0/24
• 221.120.40.0/21
• 221.120.48.0/22
• 221.120.56.0/22
• 221.120.72.0/21
• 221.120.80.0/22
• 223.136.0.0/14
• 223.140.0.0/15
• 223.143.0.0/17
• 223.143.128.0/18
• 223.143.192.0/19
• 223.143.224.0/20
• 223.143.240.0/21
• 2001:b400::/23

Upstream networks

• AS3462 Data Communication Business Group

Adjacent networks

• AS3462 Data Communication Business Group