Home Prefix Lookup203.78.32.0/21

203.78.32.0/21 - SMARTONE MB AP SmarTone Mobile Communications (AS17924)

IPv4APNICannouncedAS17924SMARTONE-MB-AS-AP SmarTone Mobile Communications Ltd RPKI Valid

CIDR

203.78.32.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇭🇰 Hong Kong

City

Kwun Tong

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
203.78.32.0/21	AS17924 SMARTONE-MB-AS-AP SmarTone Mobile Communications Ltd	Valid	APNICOther IRR	2026-10-11

More-Specific Announcements

3 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
203.78.32.0/24	AS17924 SMARTONE-MB-AS-AP SmarTone Mobile Communications Ltd	Valid	-	2026-10-11
203.78.36.0/24	AS17924 SMARTONE-MB-AS-AP SmarTone Mobile Communications Ltd	Valid	-	2026-10-11
203.78.37.0/24	AS17924 SMARTONE-MB-AS-AP SmarTone Mobile Communications Ltd	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
203.78.32.0/21	AS17924	/21	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS17924	APNIC	MAINT-HK-SMARTM-AP	2021-04-22
AS17924	Other IRR	MAINT-AS17924	2026-05-02

Origin ASN

AS17924

SMARTONE-MB-AS-AP SmarTone Mobile Communications Ltd

Related Prefixes

More prefixes of AS17924

All prefixes of AS17924 →

Geolocation

Country🇭🇰Hong KongHK

RegionKwun Tong District

CityKwun Tong

Coordinates22.3145, 114.2200 ↗

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/203.78.32.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/203.78.32.0/21" | jq

External Links

RIPEstat