Home Prefix Lookup185.140.18.0/23

185.140.18.0/23 - ICUK Computing Services Limited (AS51561)

IPv4RIPE NCCannouncedAS51561AS-ICUK ICUK Computing Services LimitedNo ROA

CIDR

185.140.18.0/23

IP Version

IPv4

Addresses

512

Mask

/23 (255.255.254.0)

Country

🇬🇧 United Kingdom

City

Chilworth

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
185.140.18.0/23	AS51561 AS-ICUK ICUK Computing Services Limited	No ROA	-	2026-10-11

More Specific Prefixes

Prefix	Country	Status
185.140.18.0/27	🇬🇧GB	assigned
185.140.18.32/29	🇬🇧GB	assigned
185.140.18.40/29	🇬🇧GB	assigned
185.140.18.48/29	🇬🇧GB	assigned
185.140.18.56/31	🇬🇧GB	assigned
185.140.18.58/31	🇬🇧GB	assigned
185.140.18.60/31	🇬🇧GB	assigned
185.140.18.62/31	🇬🇧GB	assigned
185.140.18.64/28	🇬🇧GB	assigned
185.140.18.112/29	🇬🇧GB	assigned
185.140.18.120/29	🇬🇧GB	assigned
185.140.18.128/28	🇬🇧GB	assigned
185.140.18.144/28	🇬🇧GB	assigned
185.140.18.160/28	🇬🇧GB	assigned
185.140.18.176/28	🇬🇧GB	assigned
185.140.18.192/28	🇬🇧GB	assigned
185.140.18.208/28	🇬🇧GB	assigned
185.140.18.240/29	🇬🇧GB	assigned

Transfer History

Registry transfers of 185.140.18.0/23, blocks inside it, or blocks containing it.

185.140.16.0/22Transfer · 2022-10-24
Dolphin Communications Ltd.
RIPE NCC
→
ICUK Computing Services Limited
RIPE NCC

Date	Resource	From	To	Type
2022-10-24	185.140.16.0/22	Dolphin Communications Ltd. RIPE NCC	ICUK Computing Services Limited RIPE NCC	Transfer

Origin ASN

AS51561

AS-ICUK ICUK Computing Services Limited

Related Prefixes

More prefixes of AS51561

All prefixes of AS51561 →

Geolocation

Country🇬🇧United KingdomGB

RegionEngland

CityChilworth

Coordinates50.9615, -1.4252 ↗

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/185.140.18.0/23

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

curl -s "https://api.ipctl.io/v1/prefix/185.140.18.0/23" | jq

External Links

RIPEstat