Home Prefix Lookup203.173.80.0/22

203.173.80.0/22 - SIAMDATA TH Siamdata Communication (AS56309)

IPv4APNICannouncedAS56309SIAMDATA-TH Siamdata Communication Co.,Ltd. RPKI Valid

CIDR

203.173.80.0/22

IP Version

IPv4

Addresses

Mask

/22 (255.255.252.0)

Country

🇹🇭 Thailand

City

Bangkok

RIR

APNIC

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
203.173.80.0/22	AS56309 SIAMDATA-TH Siamdata Communication Co.,Ltd.	Valid	APNIC	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
203.173.80.0/21	AS56309	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS56309	APNIC	MAINT-READYIDC-TH	2026-10-02

More Specific Prefixes

Prefix	Country	Status
203.173.80.0/24	🇹🇭TH	assigned
203.173.81.0/24	🇹🇭TH	assigned
203.173.82.0/24	🇹🇭TH	assigned
203.173.83.0/24	🇹🇭TH	assigned

Transfer History

Registry transfers of 203.173.80.0/22, blocks inside it, or blocks containing it.

203.173.80.0/21Transfer · 2026-09-18
Foresightwave INC.
🇯🇵 JP APNIC
→
READYIDC CO., LTD.
🇹🇭 TH APNIC
203.173.80.0/21Transfer · 2012-02-09
Sanmedia Corporation
🇯🇵 JP APNIC
→
Foresightwave INC.
🇯🇵 JP APNIC

Date	Resource	From	To	Type
2026-09-18	203.173.80.0/21	Foresightwave INC. 🇯🇵 JP APNIC	READYIDC CO., LTD. 🇹🇭 TH APNIC	Transfer
2012-02-09	203.173.80.0/21	Sanmedia Corporation 🇯🇵 JP APNIC	Foresightwave INC. 🇯🇵 JP APNIC	Transfer

Origin ASN

AS56309

SIAMDATA-TH Siamdata Communication Co.,Ltd.

Related Prefixes

More prefixes of AS56309

All prefixes of AS56309 →

Geolocation

Country🇹🇭ThailandTH

RegionBangkok

CityBangkok

Coordinates13.7563, 100.5020 ↗

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the APNIC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/203.173.80.0/22

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/203.173.80.0/22" | jq

External Links

RIPEstat