Autonomous system
AS7514 MEX Computer Engineering & Consulting, Ltd.
Hosting DROP-listed space ARIN
Summary
MEX (CEC Data Center Services)
hosting legacy
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.jpandmvdc.jp(its virtual data-centre platform), including router names likevr-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
MEXhandle 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. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| JPIX Tokyo | Tokyo, Japan | 210.171.224.184 |
| Network Service Provider IXP (Distributed IX in Edo) | Tokyo, Japan | 202.249.2.112 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 20 prefixes · 192K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 21 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS7514- Registry name
- MEX
- Registered
- 1997-03-03
- Last changed
- 2014-04-23
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- MEX
- Scope
- Not Disclosed
- Traffic ratio
- Not Disclosed
- Peering policy
- Open
- Present at
- 1 exchanges
- Website
- http://msp.cec-ltd.co.jp
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 65% valid · 15 valid, 8 with no ROA
- ROAs
- 14 authorising AS7514
- ASPA
- no ASPA record
- IRR
- 100% registered · 23 of 23 announcements
- Route objects
- 28 naming AS7514
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
3 DROP matches Announced space overlapping the DROP prefix list.
| Announced | DROP entry | Record |
|---|---|---|
| 80.208.192.0/20 | 80.208.192.0/20 | SBL594333 |
| 195.181.224.0/20 | 195.181.224.0/20 | SBL594334 |
| 212.237.152.0/21 | 212.237.152.0/21 | SBL594332 |
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,772 prefixes, as published 2026-10-15. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere