Autonomous system
AS24449 EMSD-AS-HK-AP Electrical and Mechanical Services Department
Unclassified APNIC
Summary
Electrical and Mechanical Services Department
government infrastructure hong-kong
EMSD-AS-HK-AP is operated by the Electrical and Mechanical Services Department of the Hong Kong Special Administrative Region Government.
What it's used for
- The address space carries government infrastructure, evidenced by the consistent netname
EMSDNETand registrantIRT-EMSD-HK; Electrical and Mechanical Services Department, HKSARGacross all prefixes. - The AS announces 2048 IPv4 addresses across 3 prefixes and maintains 7 observed neighbours, indicating a small-scale internal network rather than a transit or large access provider.
Notable
- All registrants align with the announcer, consistently identifying the Electrical and Mechanical Services Department of the HKSARG.
- The address inventory is compact, consisting of three contiguous IPv4 blocks within the 202.153.8.0/22 range, with no IPv6 prefixes announced.
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 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Hong Kong Internet Exchange | Hong Kong, China | 123.255.91.33 |
Transit providers
5 upstream, 0 downstream and 5 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 2.05K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| HK | Hong Kong | 3 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS24449- Registry name
- EMSD-AS-HK-AP
- Registrant
- Electrical and Mechanical Services Department, HKSARG
- Abuse contact
- network_admin@emsd.gov.hk
- Registered
- 2008-09-04
- Last changed
- 2020-09-05
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 6 with no ROA
- ROAs
- 0 authorising AS24449
- ASPA
- no ASPA record
- IRR
- 100% registered · 6 of 6 announcements
- Route objects
- 23 naming AS24449
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: 442 networks and 1,783 prefixes, as published 2026-10-17. 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