Home Prefix Lookup194.28.204.0/23

194.28.204.0/23 - Bird.Com (AS23528)

IPv4RIPE NCCassignedAS23528SPARKPOST - Bird.com Inc.No ROA

CIDR

194.28.204.0/23

IP Version

IPv4

Addresses

512

Mask

/23 (255.255.254.0)

Country

🇬🇧 United Kingdom

City

London (Shoreditch)

RIR

RIPE NCC

Status

assigned

Allocated

2010-05-18

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
194.28.204.0/23	AS23528 SPARKPOST - Bird.com Inc.	No ROA	Other IRRRIPE	2026-10-11

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS23528	Other IRR	MAINT-AS23528	2023-11-13
AS23528	RIPE	ANYIP-COM	2022-06-22

Transfer History

Registry transfers of 194.28.204.0/23, blocks inside it, or blocks containing it.

194.28.204.0/23Transfer · 2019-11-07
Intertelecom Ltd
RIPE NCC
→
Ometria Ltd
RIPE NCC

Date	Resource	From	To	Type
2019-11-07	194.28.204.0/23	Intertelecom Ltd RIPE NCC	Ometria Ltd RIPE NCC	Transfer

Origin ASN

AS23528

SPARKPOST - Bird.com Inc.

Related Prefixes

More prefixes of AS23528

All prefixes of AS23528 →

Geolocation

Country🇬🇧United KingdomGB

RegionEngland

CityLondon (Shoreditch)

Coordinates51.5237, -0.0763 ↗

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/194.28.204.0/23

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

curl -s "https://api.ipctl.io/v1/prefix/194.28.204.0/23" | jq

External Links

RIPEstat