Home Prefix Lookup183.181.80.0/20

183.181.80.0/20 - Xserver (AS131965)

IPv4RIPEannouncedAS131965XSERVER - Xserver Inc. RPKI Valid

CIDR

183.181.80.0/20

IP Version

IPv4

Addresses

Mask

/20 (255.255.240.0)

Country

🇯🇵 Japan

City

Chiyoda City

RIR

RIPE

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
183.181.80.0/20	AS131965 XSERVER - Xserver Inc.	Valid	Other IRR	2026-10-12

More-Specific Announcements

6 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
183.181.80.0/22	AS131965 XSERVER - Xserver Inc.	Valid	-	2026-10-12
183.181.84.0/22	AS131965 XSERVER - Xserver Inc.	Valid	-	2026-10-12
183.181.88.0/23	AS131965 XSERVER - Xserver Inc.	Valid	-	2026-10-12
183.181.90.0/23	AS131965 XSERVER - Xserver Inc.	Valid	-	2026-10-12
183.181.92.0/24	AS131965 XSERVER - Xserver Inc.	Valid	-	2026-10-12
183.181.94.0/24	AS131965 XSERVER - Xserver Inc.	Valid	-	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
183.181.80.0/20	AS131965	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS131965	Other IRR	MAINT-AS131965	2024-05-20

More Specific Prefixes

Prefix	Country	Status
183.181.80.0/21	🇯🇵JP	allocated
183.181.88.0/22	🇯🇵JP	allocated
183.181.92.0/23	🇯🇵JP	allocated
183.181.94.0/23	🇯🇵JP	allocated

Transfer History

Registry transfers of 183.181.80.0/20, blocks inside it, or blocks containing it.

183.181.92.0/23Transfer · 2018-07-18
Japan Network Information Center/SAKURA-OSAKA
🇯🇵 JP APNIC
→
Japan Network Information Center/BETINC
🇯🇵 JP APNIC
183.181.88.0/22Transfer · 2018-07-18
Japan Network Information Center/SAKURA-OSAKA
🇯🇵 JP APNIC
→
Japan Network Information Center/BETINC
🇯🇵 JP APNIC
183.181.80.0/21Transfer · 2018-07-18
Japan Network Information Center/SAKURA-OSAKA
🇯🇵 JP APNIC
→
Japan Network Information Center/BETINC
🇯🇵 JP APNIC
183.181.94.0/23Transfer · 2018-01-24
Japan Network Information Center/SAKURA-OSAKA
🇯🇵 JP APNIC
→
Japan Network Information Center/BETINC
🇯🇵 JP APNIC
183.181.80.0/20Transfer · 2014-06-13
Japan Network Information Center/DTI
🇯🇵 JP APNIC
→
Japan Network Information Center/SAKURA-OSAKA
🇯🇵 JP APNIC

Date	Resource	From	To	Type
2018-07-18	183.181.92.0/23	Japan Network Information Center/SAKURA-OSAKA 🇯🇵 JP APNIC	Japan Network Information Center/BETINC 🇯🇵 JP APNIC	Transfer
2018-07-18	183.181.88.0/22	Japan Network Information Center/SAKURA-OSAKA 🇯🇵 JP APNIC	Japan Network Information Center/BETINC 🇯🇵 JP APNIC	Transfer
2018-07-18	183.181.80.0/21	Japan Network Information Center/SAKURA-OSAKA 🇯🇵 JP APNIC	Japan Network Information Center/BETINC 🇯🇵 JP APNIC	Transfer
2018-01-24	183.181.94.0/23	Japan Network Information Center/SAKURA-OSAKA 🇯🇵 JP APNIC	Japan Network Information Center/BETINC 🇯🇵 JP APNIC	Transfer
2014-06-13	183.181.80.0/20	Japan Network Information Center/DTI 🇯🇵 JP APNIC	Japan Network Information Center/SAKURA-OSAKA 🇯🇵 JP APNIC	Transfer

Origin ASN

AS131965

XSERVER - Xserver Inc.

Related Prefixes

More prefixes of AS131965

All prefixes of AS131965 →

Geolocation

Country🇯🇵JapanJP

RegionTokyo

CityChiyoda City

Coordinates35.6916, 139.7680 ↗

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 transfer marketTransfers published by all five RIRs

API

Open

GEThttps://api.ipctl.io/v1/prefix/183.181.80.0/20

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

curl -s "https://api.ipctl.io/v1/prefix/183.181.80.0/20" | jq

External Links

RIPEstat