Home ASN LookupAS57112

AS57112 AS-F2X Fiber Services B.V.

🇳🇱

Org handle: ORG-FOB3-RIPE

RIPE NCCallocated

Announced Prefixes (BGP)

26total

23 IPv43 IPv6

IPv4 Addresses

Allocated (RIR)31,744

Announced (BGP)33,024

IPv6 Addresses

Allocated (RIR)1.9×10³⁰

Announced (BGP)1.9×10³⁰

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇳🇱 NL

RIR

RIPE NCC

Status

allocated

Allocated

2019-06-04

Announced Prefixes

(BGP)26

Prefix	RPKI	IRR	Last Seen
5.104.112.0/20	Valid	RIPE	2026-10-11
31.177.32.0/21	Valid	RIPE	2026-10-11
45.84.40.0/22	Valid	RIPE	2026-10-11
45.91.56.0/22	Valid	RIPE	2026-10-11
45.92.224.0/22	Valid	RIPE	2026-10-11
81.30.64.0/20	Valid	RIPE	2026-10-11
86.111.208.0/22	Valid	RIPE	2026-10-11
185.23.140.0/22	Valid	RIPE	2026-10-11
185.33.152.0/22	Valid	RIPE	2026-10-11
185.38.152.0/22	Valid	RIPE	2026-10-11

1-10 of 26

1 / 3

Allocated Prefixes

(RIR)24

Prefix	Country	RIR	Status
5.104.112.0/20	🇳🇱 NL	RIPENCC	allocated
31.177.32.0/21	🇳🇱 NL	RIPENCC	allocated
45.84.40.0/22	🇳🇱 NL	RIPENCC	allocated
45.91.56.0/22	🇳🇱 NL	RIPENCC	allocated
45.92.224.0/22	🇳🇱 NL	RIPENCC	allocated
81.30.64.0/20	🇳🇱 NL	RIPENCC	allocated
86.111.208.0/22	🇳🇱 NL	RIPENCC	allocated
185.23.140.0/22	🇳🇱 NL	RIPENCC	allocated
185.33.152.0/22	🇳🇱 NL	RIPENCC	allocated
185.38.152.0/22	🇳🇱 NL	RIPENCC	allocated

1-10 of 24

1 / 3

All 26 announced prefixes of AS57112 →

BGP Neighbours

(seen in AS paths)

Upstreams (6)

Networks AS57112 hands its own prefixes to: transit providers, or peers at an exchange.

AS1299TWELVE99 Arelion Sweden AB9
AS174Cogent Communications8
AS6204ZET NET INTERKVM HOST4
AS33891CORE BACKBONE Core Backbone3
AS22356Durand Do Brasil Ltda1
AS24482SGGS AP SG.GS1

Downstreams (3)

Networks whose own prefixes AS57112 passes on: usually its customers.

AS203152ETHIN ISP Interforce Networks BV2
AS204737ASN CLOUDWEIGH B.V1
AS208864Weserve B.V1

Transfer History

Registry transfers of AS57112 between organisations.

AS57112M&A · 2026-03-03
F2X Operator B.V.
🇳🇱 NL RIPE NCC
→
Fiber Services B.V.
🇳🇱 NL RIPE NCC

Date	Resource	From	To	Type
2026-03-03	AS57112	F2X Operator B.V. 🇳🇱 NL RIPE NCC	Fiber Services B.V. 🇳🇱 NL RIPE NCC	M&A

ASPA

No ASPA

Abuse Contact

External Links

RIPE Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS57112 should publish an ASPA object
IPv4 transfers in the RIPE NCC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/57112

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/57112" | jq