Home Prefix Lookup81.52.137.0/24

81.52.137.0/24 - Opentransit Orange S.A (AS5511)

IPv4RIPE NCCannouncedAS5511Opentransit Orange S.A. RPKI Valid

CIDR

81.52.137.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

Country

🇺🇸 United States

City

Cambridge (East Cambridge)

RIR

RIPE NCC

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
81.52.137.0/24	AS5511 Opentransit Orange S.A.	Valid	RIPE	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
81.52.136.0/22	AS5511	/24	ripe

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS5511	RIPE	FT-BRX	2019-11-04

Origin ASN

AS5511

Opentransit Orange S.A.

Related Prefixes

More prefixes of AS5511

All prefixes of AS5511 →

Geolocation

Country🇺🇸United StatesUS

RegionMassachusetts

CityCambridge (East Cambridge)

Coordinates42.3649, -71.0889 ↗

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/81.52.137.0/24

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

curl -s "https://api.ipctl.io/v1/prefix/81.52.137.0/24" | jq

External Links

RIPEstat