asn.dev

Autonomous system

AS209642 MEJIRONETWORK

Unclassified RIPE

IPv4 addresses 2.05K 7 prefixes
IPv6 prefixes 7 counted as prefixes, not addresses
Countries 1 mostly HK
Exchanges 0 recorded by PCH
Upstreams 2 5 downstream
Flagged prefixes 0 none

Summary

Mejiro Network

Hong Kong · AI-generated

transit enterprise hong-kong

The AS handle MEJIRONETWORK is operated by Mejiro Network Limited.

What it's used for

  • The address space carries corporate and transit infrastructure, evidenced by netnames such as MejiroNetwork, Mejiro, and HK-MEJIRO1-20260807, and reverse DNS records pointing to mejiro.io.
  • The AS announces 2048 IPv4 addresses across 7 prefixes and 7 IPv6 prefixes, with 7 observed routing neighbours, indicating a role focused on IP transit and enterprise connectivity rather than mass residential access.
  • Traffic from this AS consists of IP transit services and enterprise network resources, as Mejiro Network provides global network access and tailored connectivity solutions.

Notable

  • Registrants include Mejiro Network Limited, Sakura Network LTD, and Internet Utilities, with some prefixes registered to "Private Customer" or abuse contacts, reflecting a mix of owned and leased address space.
  • Mejiro Network was formed in 2021 and operates an 80 Gbps+ backbone, providing IP transit and enterprise connectivity solutions from its base in Kowloon, Hong Kong.
  • The inventory consists of seven distinct IPv4 prefixes and seven IPv6 prefixes, with the largest IPv4 block being 45.146.242.0/23.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 5 downstream and 8 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS38008Aperture Science Limited588
AS34872Sarah Rossius trading as Servperso Systems59

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-27, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 7 prefixes · 2.05K addresses IPv6 7 prefixes

CountryNamePrefixes
HKHong Kong14

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS209642
Registry name
MEJIRONETWORK
Registrant
MEJIRO-MNT
Abuse contact
abuse@mejiro.io
Registered
2022-01-20
Last changed
2024-06-27
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 14 valid, 0 with no ROA
ROAs
18 authorising AS209642
ASPA
no ASPA record
IRR
100% registered · 14 of 14 announcements
Route objects
80 naming AS209642

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 446 networks and 1,852 prefixes, as published 2026-10-27. 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

Cross-check