Home Prefix Lookup45.43.32.0/19

45.43.32.0/19 - BGP Prefix

IPv4ARINallocated RPKI Valid

CIDR

45.43.32.0/19

IP Version

IPv4

Addresses

8.1K

Mask

/19 (255.255.224.0)

Country

🇭🇰 Hong Kong

City

Hong Kong

RIR

ARIN

Status

allocated

Allocated

2015-03-27

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

24 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
45.43.32.0/22	AS21859 ZEN-ECN - Zenlayer Inc	Valid	-	2026-10-11
45.43.36.0/24	AS135377 UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED	Valid	-	2026-10-11
45.43.37.0/24	AS135377 UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED	Valid	-	2026-10-11
45.43.38.0/23	AS21859 ZEN-ECN - Zenlayer Inc	Valid	-	2026-10-11
45.43.40.0/23	AS21859 ZEN-ECN - Zenlayer Inc	Valid	-	2026-10-11
45.43.42.0/24	AS21859 ZEN-ECN - Zenlayer Inc	Valid	-	2026-10-11
45.43.43.0/24	AS21859 ZEN-ECN - Zenlayer Inc	Valid	-	2026-10-11
45.43.44.0/23	AS21859 ZEN-ECN - Zenlayer Inc	Valid	-	2026-10-11
45.43.46.0/23	AS21859 ZEN-ECN - Zenlayer Inc	Valid	-	2026-10-11
45.43.48.0/23	AS21859 ZEN-ECN - Zenlayer Inc	Valid	-	2026-10-11
45.43.50.0/24	AS21859 ZEN-ECN - Zenlayer Inc	Valid	-	2026-10-11
45.43.51.0/24	AS21859 ZEN-ECN - Zenlayer Inc	Valid	-	2026-10-11
45.43.52.0/24	AS135377 UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED	Valid	-	2026-10-11
45.43.53.0/24	AS135377 UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED	Valid	-	2026-10-11
45.43.54.0/24	AS135377 UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED	Valid	-	2026-10-11
45.43.55.0/24	AS135377 UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED	Valid	-	2026-10-11
45.43.56.0/24	AS135377 UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED	Valid	-	2026-10-11
45.43.57.0/24	AS135377 UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED	Valid	-	2026-10-11
45.43.58.0/24	AS135377 UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED	Valid	-	2026-10-11
45.43.59.0/24	AS135377 UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED	Valid	-	2026-10-11
45.43.60.0/24	AS135377 UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED	Valid	-	2026-10-11
45.43.61.0/24	AS135377 UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED	Valid	-	2026-10-11
45.43.62.0/24	AS135377 UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED	Valid	-	2026-10-11
45.43.63.0/24	AS135377 UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
45.43.32.0/19	AS21859	/24	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS21859	Other IRR	MAINT-AS21859	2023-11-13

Transfer History

Registry transfers of 45.43.32.0/19, blocks inside it, or blocks containing it.

45.43.32.0/19M&A · 2018-02-27
XeHost.com
🇺🇸 US ARIN
→
Zenlayer Inc
🇺🇸 US ARIN

Date	Resource	From	To	Type
2018-02-27	45.43.32.0/19	XeHost.com 🇺🇸 US ARIN	Zenlayer Inc 🇺🇸 US ARIN	M&A

Geolocation

Country🇭🇰Hong KongHK

CityHong Kong

Coordinates22.3193, 114.1690 ↗

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 ARIN regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/45.43.32.0/19

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

curl -s "https://api.ipctl.io/v1/prefix/45.43.32.0/19" | jq

External Links

RIPEstat