AS7514 — MEX Computer Engineering & Consulting, Ltd.

Network type: hosting

AS7514 announces 20 IPv4 prefixes covering 192,000 addresses and 1 IPv6 prefixes.

About this network

MEX — Media EXchange, today the data-centre and connectivity brand of Computer Engineering & Consulting, Ltd. (CEC) of Tokyo. Media Exchange Co. was originally a commercial internet-exchange and IDC operator; it handed its data centre and internet-access businesses to CEC in 2010, and the AS moved with them.

What it's used for

• Internet data centre services: housing/colocation, rental and virtual servers, IP transit and IPv6 for Japanese business customers.
• rDNS matches: hosts resolve under mex.ad.jp, mexne.jp and mvdc.jp (its virtual data-centre platform), including router names like vr-128-000.mex.ad.jp.

Notable

• Its published routing policy lists a long roster of downstream networks, but the observed BGP data shows none — six upstreams (IIJ, KDDI, NTT, OCN and others) and zero downstream ASNs. The routing-registry object is stale; the AS is a multi-homed hosting network, not a transit provider.
• A caution for geolocation: alongside its own Japanese blocks, it announces RIPE space registered to CLOVER, LLC and Philippine space registered to Advance G Advertising Services. None of it has rDNS. Those prefixes belong to other parties and should not be attributed to CEC's data centres.

Interesting

• The MEX handle is the last trace of a company that no longer exists under that name; it was absorbed via Free Bit and then Dream Train Internet, while the brand stayed with the buyer of its data centres.

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

Announced prefixes

• 80.208.192.0/20
• 82.100.184.0/21
• 95.87.112.0/21
• 103.1.120.0/22
• 103.18.100.0/22
• 103.94.228.0/22
• 103.144.6.0/23
• 113.192.128.0/17
• 120.89.128.0/17
• 120.93.0.0/16
• 185.164.244.0/22
• 195.181.224.0/20
• 202.223.0.0/22
• 210.155.128.0/19
• 210.166.224.0/19
• 210.198.0.0/19
• 211.13.192.0/19
• 212.237.152.0/21
• 218.216.128.0/20
• 219.112.240.0/20
• 2001:2f0::/32

Upstream networks

• AS2914 NTT America, Inc.
• AS4725 SoftBank Corp.
• AS2516 KDDI CORPORATION
• AS2497 Internet Initiative Japan Inc.
• AS4713 NTT DOCOMO BUSINESS,Inc.

Adjacent networks

• AS2914 NTT America, Inc.
• AS4725 SoftBank Corp.
• AS2516 KDDI CORPORATION
• AS2497 Internet Initiative Japan Inc.
• AS4713 NTT DOCOMO BUSINESS,Inc.

Internet exchanges

• JPIX Tokyo — Tokyo, Japan
• Network Service Provider IXP (Distributed IX in Edo) — Tokyo, Japan