asn.dev

Autonomous system

AS24187 KIRZ-AS-TH KIRZ Service Provider

Residential APNIC

IPv4 addresses 20.99K 12 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly TH
Exchanges 0 recorded by PCH
Upstreams 6 2 downstream
Flagged prefixes 0 none

Summary

KIRZ

Thailand · AI-generated

isp residential thailand cable

The AS handle KIRZ-AS-TH is held by KIRZ Company Limited.

What it's used for

  • The address space is predominantly registered to KIRZ Company Limited under netnames such as KIRZ-AS-AP and KIRZ, indicating a dedicated service provider estate.
  • With 23,552 IPv4 addresses announced across 17 prefixes and only 8 observed neighbours, the high address-to-neighbour ratio suggests an access or eyeball network rather than a transit provider.

Notable

  • Most registrants align with the announcer, specifically KIRZ Company Limited, though two prefixes are registered to other entities: 80.174.160.0/22 to AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL and 38.225.104.0/23 to Cogent Communications, LLC.
  • The inventory includes a single IPv6 prefix, 2407:7a00::/32, alongside the IPv4 blocks.
  • The address inventory is finely subdivided into multiple /20, /21, /22, /23, and /24 prefixes, consistent with a corporate or ISP estate managing distinct customer or site segments.

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

6 upstream, 2 downstream and 15 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS38082True International Gateway Co., Ltd.3,400
AS4651National Telecom Public Company Limited1,183
AS45430SBN-IIG/AWN-IIG transit provider470
AS9304HGC Global Communications Limited115
AS24482SG.GS10
AS2914NTT America, Inc.3

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, 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 12 prefixes · 20.99K addresses IPv6 1 prefixes

CountryNamePrefixes
THThailand13

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS24187
Registry name
KIRZ-AS-TH
Registrant
KIRZ Company Limited
Abuse contact
gun@kirz.com
Registered
2008-09-04
Last changed
2020-06-17
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 86 valid, 0 with no ROA
ROAs
4 authorising AS24187
ASPA
5 declared providers
IRR
100% registered · 86 of 86 announcements
Route objects
253 naming AS24187

Reputation

Classification and threat

Residential Fixed-line consumer ISP. Addresses here are homes.

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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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