Home Prefix Lookup202.61.136.0/21

202.61.136.0/21 - BGP Prefix

IPv4APNICassigned RPKI Valid

CIDR

202.61.136.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇯🇵 Japan

City

Chiyoda City

RIR

APNIC

Status

assigned

Allocated

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
202.61.136.0/24	AS152194 CTGSERVERLIMITED-AS-AP - CTG Server Limited	Valid	-	2026-10-12
202.61.137.0/24	AS152194 CTGSERVERLIMITED-AS-AP - CTG Server Limited	Valid	-	2026-10-12
202.61.138.0/24	AS152194 CTGSERVERLIMITED-AS-AP - CTG Server Limited	Valid	-	2026-10-12
202.61.139.0/24	AS152194 CTGSERVERLIMITED-AS-AP - CTG Server Limited	Valid	-	2026-10-12
202.61.140.0/24	AS152194 CTGSERVERLIMITED-AS-AP - CTG Server Limited	Valid	-	2026-10-12
202.61.141.0/24	AS152194 CTGSERVERLIMITED-AS-AP - CTG Server Limited	Valid	-	2026-10-12
202.61.142.0/24	AS152194 CTGSERVERLIMITED-AS-AP - CTG Server Limited	Valid	-	2026-10-12
202.61.143.0/24	AS152194 CTGSERVERLIMITED-AS-AP - CTG Server Limited	Valid	-	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
202.61.136.0/21	AS152194	/24	apnic
202.61.128.0/18	AS13335	/18	apnic
202.61.128.0/18	AS64050	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS152194	APNIC	MAINT-RCPL-SG	2024-03-01
AS64050	APNIC	MAINT-RCPL-SG	2023-10-11

More Specific Prefixes

Prefix	AS	Country	Status
202.61.139.0/24	AS152194	🇸🇬SG	assigned
202.61.140.0/24	AS152194	🇸🇬SG	assigned
202.61.142.0/24	AS152194	🇸🇬SG	assigned

Transfer History

Registry transfers of 202.61.136.0/21, blocks inside it, or blocks containing it.

202.61.128.0/18Transfer · 2020-02-17
VOCUS PTY LTD
🇦🇺 AU APNIC
→
RACKIP CONSULTANCY PTE. LTD.
🇸🇬 SG APNIC

Date	Resource	From	To	Type
2020-02-17	202.61.128.0/18	VOCUS PTY LTD 🇦🇺 AU APNIC	RACKIP CONSULTANCY PTE. LTD. 🇸🇬 SG APNIC	Transfer

Geolocation

Country🇯🇵JapanJP

RegionTokyo

CityChiyoda City

Coordinates35.6940, 139.7540 ↗

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/202.61.136.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/202.61.136.0/21" | jq

External Links

RIPEstat