AS57112 — AS-F2X Fiber Services B.V.

Network type: residential

AS57112 announces 21 IPv4 prefixes covering 31,232 addresses and 3 IPv6 prefixes.

About this network

AS-F2X is operated by Fiber Services B.V., a Dutch cable and DSL internet service provider.

What it's used for

• The address space carries residential and business broadband traffic, evidenced by reverse DNS entries such as ip-45.84.41.0.f2x.nl and netnames like NL-F2X-20120628.
• The AS announces 31,232 IPv4 addresses across 21 prefixes and 3 IPv6 prefixes, while maintaining 122 observed routing neighbours. This ratio of moderate address space to high peering count indicates a regional access provider purchasing transit and peering for customer connectivity.
• Traffic from this AS consists of subscriber eyeballs accessing the internet via fiber and DSL connections, as well as web and API endpoints for the provider's own infrastructure.

Notable

• All registrants for the largest prefixes are listed as Fiber Services B.V., which aligns with the AS holder AS-F2X Fiber Services B.V..
• The address inventory is fragmented into many small /22 and /23 blocks, alongside a few larger /20 and /21 blocks, reflecting incremental acquisition of IP space over time.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 5.104.112.0/20
• 31.177.32.0/21
• 45.84.40.0/22
• 45.91.56.0/22
• 45.92.224.0/22
• 81.30.64.0/20
• 86.111.208.0/22
• 185.23.140.0/22
• 185.33.152.0/22
• 185.38.152.0/22
• 185.70.236.0/22
• 185.72.160.0/22
• 185.82.192.0/22
• 185.87.104.0/22
• 185.87.116.0/22
• 185.87.156.0/22
• 185.103.236.0/22
• 185.113.172.0/22
• 185.133.108.0/22
• 185.192.146.0/23
• 217.76.16.0/20
• 2a0a:4980::/29
• 2a0e:c40::/29
• 2a0e:9680::/29

Upstream networks

• AS1299 Arelion Sweden AB
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS37721 Virtual Technologies & Solutions
• AS24482 SG.GS
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS48185 team.blue NV
• AS34927 iFog GmbH
• AS202365 Omer GOLGELI
• AS34019 Hivane Association
• AS213241 TECHIT.BE SRL
• AS293 ESnet
• AS37100 SEACOM Limited
• AS12552 GlobalConnect AB
• AS4657 StarHub Ltd
• AS12779 IT.Gate S.p.A.
• AS50300 CustodianDC Limited
• AS33891 Core-Backbone GmbH
• AS3216 PJSC "Vimpelcom"
• AS401753 BIXCE Inc
• AS48362 Stadtwerke Feldkirch
• AS58057 Securebit AG
• AS56662 Marcin Gondek
• AS29632 Netassist International EOOD
• AS204092 Association GRIFON

Downstream networks

• AS203152 Interforce Networks BV
• AS204737 CloudWeigh B.V.
• AS208864 Weserve B.V.

Adjacent networks

• AS1299 Arelion Sweden AB
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS203152 Interforce Networks BV
• AS204737 CloudWeigh B.V.
• AS37721 Virtual Technologies & Solutions
• AS24482 SG.GS
• AS213241 TECHIT.BE SRL
• AS48185 team.blue NV
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS34927 iFog GmbH
• AS202365 Omer GOLGELI
• AS34019 Hivane Association
• AS4657 StarHub Ltd
• AS37100 SEACOM Limited
• AS12552 GlobalConnect AB
• AS33891 Core-Backbone GmbH
• AS3216 PJSC "Vimpelcom"
• AS12779 IT.Gate S.p.A.
• AS50300 CustodianDC Limited
• AS293 ESnet
• AS208864 Weserve B.V.
• AS401753 BIXCE Inc
• AS48362 Stadtwerke Feldkirch
• AS58057 Securebit AG

Routing security

• RPKI: 26 valid, 0 invalid and 0 not-found announcements; 29 ROAs.
• ASPA: none published.
• IRR: 92% of announcements registered; 26 route objects.
• Listed in as-sets: AS-F2X, AS-MANDA-AMSIX-PEERS-V4, AS-MANDA-AMSIX-PEERS-V6, AS-NL-IX-RS, AS57112:AS-CUST, AS6777:AS-AMS-IX-RS, AS6777:AS-AMS-IX-RS-V6, AS680:AS-AMSIX-RS-PEERS.

Internet exchanges

• AMS-IX Amsterdam — Amsterdam, Netherlands
• Neutral Internet Exchange — Amsterdam, Netherlands
• The Frys Internet Exchange — Frysian, Netherlands
• Speed Internet Exchange — Dronten, Netherlands
• InterIX Internet Exchange — Amsterdam, Netherlands