Home Prefix Lookup81.185.0.0/16

81.185.0.0/16 - LDCOMNET Societe Francaise Du Radiotelephone SFR (AS15557)

IPv4RIPE NCCallocatedAS15557LDCOMNET Societe Francaise Du Radiotelephone - SFR SA RPKI Valid

CIDR

81.185.0.0/16

IP Version

IPv4

Addresses

65.5K

Mask

/16 (255.255.0.0)

Country

🇫🇷 France

City

Saint-Denis

RIR

RIPE NCC

Status

allocated

Allocated

2002-12-30

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
81.185.0.0/16	AS15557 LDCOMNET Societe Francaise Du Radiotelephone - SFR SA	Valid	RIPE	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
81.185.0.0/16	AS15557	/24	ripe
81.185.0.0/16	AS21502	/24	ripe
81.185.0.0/16	AS198949	/24	ripe

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS198949	Other IRR	MAINT-AS198949	2023-11-13
AS198949	RIPE	SFR-MNT	2025-07-30
AS15557	RIPE	LDCOM-MNT	2023-03-31

More Specific Prefixes

Prefix	Country	Status
81.185.0.0/21	🇫🇷FR	assigned
81.185.8.0/21	🇫🇷FR	assigned
81.185.16.0/32	🇫🇷FR	assigned
81.185.17.0/24	🇫🇷FR	assigned
81.185.18.0/23	🇫🇷FR	assigned
81.185.20.0/22	🇫🇷FR	assigned
81.185.24.0/21	🇫🇷FR	assigned
81.185.32.0/21	🇫🇷FR	assigned
81.185.43.0/24	🇫🇷FR	assigned
81.185.44.0/22	🇫🇷FR	assigned
81.185.48.0/20	🇫🇷FR	assigned
81.185.64.0/21	🇫🇷FR	assigned
81.185.72.0/21	🇫🇷FR	assigned
81.185.80.0/20	🇫🇷FR	assigned
81.185.80.0/22	🇫🇷FR	assigned
81.185.86.0/23	🇫🇷FR	assigned
81.185.88.0/21	🇫🇷FR	assigned
81.185.96.0/19	🇫🇷FR	assigned
81.185.128.0/20	🇫🇷FR	assigned
81.185.144.0/20	🇫🇷FR	assigned
81.185.160.0/32	🇫🇷FR	assigned
81.185.176.0/32	🇫🇷FR	assigned
81.185.178.0/23	🇫🇷FR	assigned
81.185.180.0/23	🇫🇷FR	assigned
81.185.182.0/23	🇫🇷FR	assigned
81.185.184.0/21	🇫🇷FR	assigned
81.185.192.0/21	🇫🇷FR	assigned
81.185.200.0/24	🇫🇷FR	assigned
81.185.201.0/24	🇫🇷FR	assigned
81.185.204.0/22	🇫🇷FR	assigned
81.185.208.0/21	🇫🇷FR	assigned
81.185.216.0/22	🇫🇷FR	assigned
81.185.220.0/24	🇫🇷FR	assigned
81.185.224.0/20	🇫🇷FR	assigned

Transfer History

Registry transfers of 81.185.0.0/16, blocks inside it, or blocks containing it.

81.185.0.0/16M&A · 2022-07-05
SFR SA
RIPE NCC
→
Societe Francaise Du Radiotelephone - SFR SA
RIPE NCC
81.185.0.0/16Transfer · 2017-11-10
Societe Francaise du Radiotelephone S.A.
RIPE NCC
→
SFR SA
RIPE NCC

Date	Resource	From	To	Type
2022-07-05	81.185.0.0/16	SFR SA RIPE NCC	Societe Francaise Du Radiotelephone - SFR SA RIPE NCC	M&A
2017-11-10	81.185.0.0/16	Societe Francaise du Radiotelephone S.A. RIPE NCC	SFR SA RIPE NCC	Transfer

Origin ASN

AS15557

LDCOMNET Societe Francaise Du Radiotelephone - SFR SA

Related Prefixes

More prefixes of AS15557

All prefixes of AS15557 →

Geolocation

Country🇫🇷FranceFR

RegionÎle-de-France

CitySaint-Denis

Coordinates48.9214, 2.3538 ↗

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/81.185.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/81.185.0.0/16" | jq

External Links

RIPEstat