Home Prefix Lookup37.10.56.0/23

37.10.56.0/23 - Booking BV Booking.Com BV (AS43996)

IPv4RIPE NCCannouncedAS43996Booking-BV Booking.com BV RPKI Valid

CIDR

37.10.56.0/23

IP Version

IPv4

Addresses

512

Mask

/23 (255.255.254.0)

Country

🇬🇧 United Kingdom

City

London

RIR

RIPE NCC

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
37.10.56.0/23	AS43996 Booking-BV Booking.com BV	Valid	RIPE	2026-10-11

More-Specific Announcements

2 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
37.10.56.0/24	AS43996 Booking-BV Booking.com BV	Valid	-	2026-10-11
37.10.57.0/24	AS43996 Booking-BV Booking.com BV	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
37.10.56.0/23	AS43996	/23	ripe

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS43996	RIPE	BOOKING-MNT	2016-05-02

More Specific Prefixes

Prefix	AS	Country	Status
37.10.56.0/24	AS43996	🇬🇧GB	assigned
37.10.57.0/24	AS43996	🇳🇱NL	assigned

Transfer History

Registry transfers of 37.10.56.0/23, blocks inside it, or blocks containing it.

37.10.0.0/18Transfer · 2014-05-28
Marcel Edler trading as Optimate-Server
RIPE NCC
→
Booking.com BV
RIPE NCC

Date	Resource	From	To	Type
2014-05-28	37.10.0.0/18	Marcel Edler trading as Optimate-Server RIPE NCC	Booking.com BV RIPE NCC	Transfer

Origin ASN

AS43996

Booking-BV Booking.com BV

Related Prefixes

More prefixes of AS43996

All prefixes of AS43996 →

Geolocation

Country🇬🇧United KingdomGB

RegionEngland

CityLondon

Coordinates51.5074, -0.1278 ↗

Abuse Contact

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 RIPE NCC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/37.10.56.0/23

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

curl -s "https://api.ipctl.io/v1/prefix/37.10.56.0/23" | jq

External Links

RIPEstat