Home Prefix Lookup172.81.96.0/20

172.81.96.0/20 - BGP Prefix

IPv4ARINallocated RPKI Valid

CIDR

172.81.96.0/20

IP Version

IPv4

Addresses

Mask

/20 (255.255.240.0)

Country

🇯🇵 Japan

City

Tokyo

RIR

ARIN

Status

allocated

Allocated

2023-09-05

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

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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
172.81.96.0/23	AS137535 JTIP-AS-AP JT TELECOM INTERNATIONAL PTE.LTD.	Valid	-	2026-10-11
172.81.96.0/24	AS7607 JTIP-AS-AP JT TELECOM INTERNATIONAL PTE.LTD.	Valid	-	2026-10-11
172.81.96.0/24	AS137535 JTIP-AS-AP JT TELECOM INTERNATIONAL PTE.LTD.	Valid	-	2026-10-11
172.81.97.0/24	AS7607 JTIP-AS-AP JT TELECOM INTERNATIONAL PTE.LTD.	Valid	-	2026-10-11
172.81.97.0/24	AS137535 JTIP-AS-AP JT TELECOM INTERNATIONAL PTE.LTD.	Valid	-	2026-10-11
172.81.98.0/23	AS137535 JTIP-AS-AP JT TELECOM INTERNATIONAL PTE.LTD.	Valid	-	2026-10-11
172.81.98.0/24	AS7607 JTIP-AS-AP JT TELECOM INTERNATIONAL PTE.LTD.	Valid	-	2026-10-11
172.81.98.0/24	AS137535 JTIP-AS-AP JT TELECOM INTERNATIONAL PTE.LTD.	Valid	-	2026-10-11
172.81.99.0/24	AS7607 JTIP-AS-AP JT TELECOM INTERNATIONAL PTE.LTD.	Valid	-	2026-10-11
172.81.99.0/24	AS137535 JTIP-AS-AP JT TELECOM INTERNATIONAL PTE.LTD.	Valid	-	2026-10-11
172.81.100.0/23	AS140227 HKCICL-AS-AP Hong Kong Communications International Co., Limited	Valid	-	2026-10-11
172.81.100.0/24	AS140227 HKCICL-AS-AP Hong Kong Communications International Co., Limited	Valid	-	2026-10-11
172.81.101.0/24	AS140227 HKCICL-AS-AP Hong Kong Communications International Co., Limited	Valid	-	2026-10-11
172.81.102.0/24	AS400618 PRIME-SEC - Prime Security Corp.	Valid	-	2026-10-11
172.81.103.0/24	AS140042 IZEC-AS-AP Zhipinshang Hongkong Electron Communication Technology Limited	Valid	-	2026-10-11
172.81.104.0/24	AS400618 PRIME-SEC - Prime Security Corp.	Valid	-	2026-10-11
172.81.105.0/24	AS140042 IZEC-AS-AP Zhipinshang Hongkong Electron Communication Technology Limited	Valid	-	2026-10-11
172.81.106.0/23	AS400618 PRIME-SEC - Prime Security Corp.	Valid	-	2026-10-11
172.81.106.0/24	AS400618 PRIME-SEC - Prime Security Corp.	Valid	-	2026-10-11
172.81.107.0/24	AS400618 PRIME-SEC - Prime Security Corp.	Valid	-	2026-10-11
172.81.108.0/24	AS400618 PRIME-SEC - Prime Security Corp.	Valid	-	2026-10-11
172.81.109.0/24	AS140042 IZEC-AS-AP Zhipinshang Hongkong Electron Communication Technology Limited	Valid	-	2026-10-11
172.81.110.0/24	AS400618 PRIME-SEC - Prime Security Corp.	Valid	-	2026-10-11
172.81.111.0/24	AS400618 PRIME-SEC - Prime Security Corp.	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
172.81.96.0/20	AS8796	/20	arin
172.81.96.0/20	AS140227	/20	arin
172.81.96.0/20	AS153517	/24	arin
172.81.96.0/20	AS395886	/20	arin
172.81.96.0/20	AS400618	/24	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS153517	ARIN	MNT-PSC-594	2026-04-23
AS140227	ARIN	MNT-PSC-594	2026-06-30
AS400618	ARIN	MNT-PSC-594	2026-06-30
AS8796	ARIN	MNT-PSC-594	2026-06-30
AS395886	ARIN	MNT-PSC-594	2026-06-30

Transfer History

Registry transfers of 172.81.96.0/20, blocks inside it, or blocks containing it.

172.81.96.0/20Transfer · 2023-09-05
KLAYER LLC
🇺🇸 US ARIN
→
Prime Security Corp.
🇺🇸 US ARIN

Date	Resource	From	To	Type
2023-09-05	172.81.96.0/20	KLAYER LLC 🇺🇸 US ARIN	Prime Security Corp. 🇺🇸 US ARIN	Transfer

Geolocation

Country🇯🇵JapanJP

CityTokyo

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/172.81.96.0/20

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

curl -s "https://api.ipctl.io/v1/prefix/172.81.96.0/20" | jq

External Links

RIPEstat