Home Prefix Lookup39.109.72.0/21

39.109.72.0/21 - BGP Prefix

IPv4APNICallocated RPKI Valid

CIDR

39.109.72.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇨🇳 China

City

Hong Kong

RIR

APNIC

Status

allocated

Allocated

2011-04-05

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below.

More-Specific Announcements

8 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
39.109.72.0/24	AS149175 UFWDTL-AS-AP - UNION FU WAH DIGITAL TECHNOLOGY LIMITED	Valid	-	2026-10-12
39.109.73.0/24	AS141768 HKBIL-AS-AP - HONG KONG BRIDGE INFO-TECH LIMITED	Valid	-	2026-10-12
39.109.74.0/24	AS149175 UFWDTL-AS-AP - UNION FU WAH DIGITAL TECHNOLOGY LIMITED	Valid	-	2026-10-12
39.109.75.0/24	AS141768 HKBIL-AS-AP - HONG KONG BRIDGE INFO-TECH LIMITED	Valid	-	2026-10-12
39.109.76.0/24	AS149175 UFWDTL-AS-AP - UNION FU WAH DIGITAL TECHNOLOGY LIMITED	Valid	-	2026-10-12
39.109.77.0/24	AS141768 HKBIL-AS-AP - HONG KONG BRIDGE INFO-TECH LIMITED	Valid	-	2026-10-12
39.109.78.0/24	AS149175 UFWDTL-AS-AP - UNION FU WAH DIGITAL TECHNOLOGY LIMITED	Valid	-	2026-10-12
39.109.79.0/24	AS40605 AITL-US - ANYCONNECT INFORMATION TECHNOLOGY CO., LTD	Valid	-	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
39.109.72.0/21	AS137969	/21	apnic
39.109.72.0/21	AS141768	/21	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS137969	APNIC	MAINT-HKBIL-HK	2021-04-12
AS141768	APNIC	MAINT-HKBIL-HK	2021-04-10
AS137969	Other IRR	MAINT-AS58453	2023-11-13

More Specific Prefixes

Prefix	AS	Country	Status
39.109.72.0/24	AS149175	🇭🇰HK	assigned
39.109.76.0/24	AS149175	🇭🇰HK	assigned
39.109.77.0/24	AS141768	🇸🇬SG	assigned
39.109.78.0/24	AS149175	🇭🇰HK	assigned
39.109.79.0/24	AS40605	🇺🇸US	assigned

Transfer History

Registry transfers of 39.109.72.0/21, blocks inside it, or blocks containing it.

39.109.79.0/24Transfer · 2020-08-06
Huayun Data International Limited
🇭🇰 HK APNIC
→
HONG KONG BRIDGE INFO-TECH LIMITED
🇭🇰 HK APNIC
39.109.78.0/24Transfer · 2020-08-06
Huayun Data International Limited
🇭🇰 HK APNIC
→
HONG KONG BRIDGE INFO-TECH LIMITED
🇭🇰 HK APNIC
39.109.77.0/24Transfer · 2020-08-06
Huayun Data International Limited
🇭🇰 HK APNIC
→
HONG KONG BRIDGE INFO-TECH LIMITED
🇭🇰 HK APNIC
39.109.76.0/24Transfer · 2020-08-06
Huayun Data International Limited
🇭🇰 HK APNIC
→
HONG KONG BRIDGE INFO-TECH LIMITED
🇭🇰 HK APNIC
39.109.75.0/24Transfer · 2020-08-06
Huayun Data International Limited
🇭🇰 HK APNIC
→
HONG KONG BRIDGE INFO-TECH LIMITED
🇭🇰 HK APNIC
39.109.74.0/24Transfer · 2020-08-06
Huayun Data International Limited
🇭🇰 HK APNIC
→
HONG KONG BRIDGE INFO-TECH LIMITED
🇭🇰 HK APNIC
39.109.73.0/24Transfer · 2020-08-06
Huayun Data International Limited
🇭🇰 HK APNIC
→
HONG KONG BRIDGE INFO-TECH LIMITED
🇭🇰 HK APNIC
39.109.72.0/24Transfer · 2020-08-06
Huayun Data International Limited
🇭🇰 HK APNIC
→
HONG KONG BRIDGE INFO-TECH LIMITED
🇭🇰 HK APNIC
39.109.0.0/17Transfer · 2014-11-20
Cloud-Sense Technology Corporation Ltd.
🇭🇰 HK APNIC
→
Huayun Data Holdings Limited
🇭🇰 HK APNIC
39.96.0.0/12Transfer · 2011-10-27
Beijing CNISP Technology Co., Ltd.
🇨🇳 CN APNIC
→
Cloud-Sense Technology Corporation Ltd.
🇭🇰 HK APNIC

Date	Resource	From	To	Type
2020-08-06	39.109.79.0/24	Huayun Data International Limited 🇭🇰 HK APNIC	HONG KONG BRIDGE INFO-TECH LIMITED 🇭🇰 HK APNIC	Transfer
2020-08-06	39.109.78.0/24	Huayun Data International Limited 🇭🇰 HK APNIC	HONG KONG BRIDGE INFO-TECH LIMITED 🇭🇰 HK APNIC	Transfer
2020-08-06	39.109.77.0/24	Huayun Data International Limited 🇭🇰 HK APNIC	HONG KONG BRIDGE INFO-TECH LIMITED 🇭🇰 HK APNIC	Transfer
2020-08-06	39.109.76.0/24	Huayun Data International Limited 🇭🇰 HK APNIC	HONG KONG BRIDGE INFO-TECH LIMITED 🇭🇰 HK APNIC	Transfer
2020-08-06	39.109.75.0/24	Huayun Data International Limited 🇭🇰 HK APNIC	HONG KONG BRIDGE INFO-TECH LIMITED 🇭🇰 HK APNIC	Transfer
2020-08-06	39.109.74.0/24	Huayun Data International Limited 🇭🇰 HK APNIC	HONG KONG BRIDGE INFO-TECH LIMITED 🇭🇰 HK APNIC	Transfer
2020-08-06	39.109.73.0/24	Huayun Data International Limited 🇭🇰 HK APNIC	HONG KONG BRIDGE INFO-TECH LIMITED 🇭🇰 HK APNIC	Transfer
2020-08-06	39.109.72.0/24	Huayun Data International Limited 🇭🇰 HK APNIC	HONG KONG BRIDGE INFO-TECH LIMITED 🇭🇰 HK APNIC	Transfer
2014-11-20	39.109.0.0/17	Cloud-Sense Technology Corporation Ltd. 🇭🇰 HK APNIC	Huayun Data Holdings Limited 🇭🇰 HK APNIC	Transfer
2011-10-27	39.96.0.0/12	Beijing CNISP Technology Co., Ltd. 🇨🇳 CN APNIC	Cloud-Sense Technology Corporation Ltd. 🇭🇰 HK APNIC	Transfer

Geolocation

Country🇨🇳ChinaCN

CityHong Kong

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/39.109.72.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/39.109.72.0/21" | jq

External Links

RIPEstat