Home Prefix Lookup2a03:dd00:2500::/40

2a03:dd00:2500::/40 - O2BROADBAND Telefonica UK Limited (AS35228)

IPv6RIPE NCCannouncedAS35228O2BROADBAND Telefonica UK Limited RPKI Valid

CIDR

2a03:dd00:2500::/40

IP Version

IPv6

Addresses

309.4Y

Mask

/40

Country

🇬🇧 United Kingdom

City

Reading

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
2a03:dd00:2500::/40	AS35228 O2BROADBAND Telefonica UK Limited	Valid	RIPE	2026-10-11

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
2a03:dd00::/32	AS35228 O2BROADBAND Telefonica UK Limited	No ROA	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
2a03:dd00:2500::/40	AS35228	/48	ripe

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS35228	RIPE	MNT-AVATAR	2026-01-12

Origin ASN

AS35228

O2BROADBAND Telefonica UK Limited

Related Prefixes

Covering prefix

2a03:dd00::/32AS35228

More prefixes of AS35228

All prefixes of AS35228 →

Geolocation

Country🇬🇧United KingdomGB

RegionEngland

CityReading

Coordinates51.4213, -0.9929 ↗

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/2a03:dd00:2500::/40

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

curl -s "https://api.ipctl.io/v1/prefix/2a03:dd00:2500::/40" | jq

External Links

RIPEstat