AS23563 — SKB-VITSSEN-SUWON-AS-KR SK Broadband Co Ltd

AS23563 announces 11 IPv4 prefixes covering 203,776 addresses and 0 IPv6 prefixes.

About this network

The AS handle SKB-VITSSEN-SUWON-AS-KR is held by SK Broadband Co Ltd.

What it's used for

• The address space carries residential broadband traffic, evidenced by the netname broadNnet-KR assigned to all sampled prefixes.
• The AS announces 209 IPv4 prefixes totaling 203776 addresses, with only 1 observed neighbour, indicating a large access network rather than a transit provider.

Notable

• All registrants in the RDAP sample are IRT-KRNIC-KR, which aligns with the SK Broadbrand identity as a major South Korean ISP.
• The address inventory is heavily concentrated in the 218.209.0.0/19 block, with numerous /20 and /21 subdivisions across 114.29.0.0/16, 114.108.0.0/16, 121.254.0.0/16, and 27.119.0.0/16.
• The AS was first seen in RIS in 2005, reflecting its long-standing operation in the South Korean market.

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

Announced prefixes

• 27.119.0.0/17
• 114.29.128.0/19
• 114.108.0.0/20
• 114.108.16.0/21
• 114.108.24.0/22
• 114.108.32.0/19
• 114.108.64.0/18
• 119.17.64.0/18
• 121.254.0.0/18
• 218.209.0.0/16
• 222.251.128.0/17

Upstream networks

• AS9318 SK Broadband Co Ltd

Adjacent networks

• AS9318 SK Broadband Co Ltd