AS23785 — SUNFIELD SUN FIELD INTERNET LIMITED

AS23785 announces 3 IPv4 prefixes covering 45,056 addresses and 0 IPv6 prefixes.

About this network

SUNFIELD is operated by Sun Field Internet Limited.

What it's used for

• The address space carries residential or small-business access traffic, indicated by reverse DNS entries such as 115-167-128-000.sunfield.ne.jp and 202-213-39-255.sunfield.ne.jp.
• The AS announces 45,056 IPv4 addresses across 3 prefixes while maintaining only 2 observed neighbours, a ratio characteristic of an access network rather than a transit provider.

Notable

• Registrants for all announced prefixes are listed as Japan Network Information Center (JPNIC), which is consistent with the AS holder being a Japanese ISP.
• The address inventory consists of three distinct IPv4 blocks: 115.167.128.0/17, 115.166.224.0/19, and 202.213.32.0/20, with no IPv6 prefixes announced.

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

Announced prefixes

• 115.166.224.0/19
• 115.167.128.0/17
• 202.213.32.0/20

Upstream networks

• AS10010 TOKAI Communications Corporation
• AS4713 NTT DOCOMO BUSINESS,Inc.

Adjacent networks

• AS10010 TOKAI Communications Corporation
• AS4713 NTT DOCOMO BUSINESS,Inc.