Home Prefix Lookup203.187.146.0/24

203.187.146.0/24 - BT British Telecommunications Limited (AS3300)

IPv4APNICassignedAS3300BT British Telecommunications Limited RPKI Valid

CIDR

203.187.146.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

Country

🇦🇺 Australia

City

Haymarket

RIR

APNIC

Status

assigned

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
203.187.146.0/24	AS3300 BT British Telecommunications Limited	Valid	APNIC	2026-10-11

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
203.187.128.0/19	AS3300 BT British Telecommunications Limited	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
203.187.128.0/19	AS3300	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS3300	APNIC	MAINT-AP-INFONET	2022-06-09

Origin ASN

AS3300

BT British Telecommunications Limited

Related Prefixes

Covering prefix

203.187.128.0/19AS3300

More prefixes of AS3300

All prefixes of AS3300 →

Geolocation

Country🇦🇺AustraliaAU

RegionNew South Wales

CityHaymarket

Coordinates-33.8708, 151.2070 ↗

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 APNIC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/203.187.146.0/24

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

curl -s "https://api.ipctl.io/v1/prefix/203.187.146.0/24" | jq

External Links

RIPEstat