AS211251 — A1-DC A1 Internet BV

AS211251 announces 5 IPv4 prefixes covering 3,328 addresses and 0 IPv6 prefixes.

About this network

A1-DC is operated by A1 Internet BV.

What it's used for

• The address space carries residential and business fiber connections, evidenced by the netnames A1-NET and NL-A1NET-20000331 and the reverse DNS entry flevoland.intralan.nl.
• The AS announces 3328 IPv4 addresses across 5 prefixes while maintaining only 4 observed neighbours, a ratio characteristic of an access network rather than a transit provider.
• Traffic from this AS consists of subscriber eyeballs and business users connected via A1's fiber optic infrastructure in the Netherlands.

Notable

• Registrants for the announced prefixes are consistently A1 Internet BV or Abuse-C Role, aligning with the AS holder.
• The address inventory is composed of two /22 blocks, two /23 blocks, and one /24 block, all located in the Netherlands.

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

Announced prefixes

• 79.98.176.0/23
• 79.98.179.0/24
• 213.171.64.0/22
• 213.171.68.0/23
• 213.171.72.0/22

Upstream networks

• AS6424 EDGOO NETWORKS UNIPESSOAL LDA
• AS57866 Fusix Networks B.V.
• AS44854 Arend Brouwer
• AS6939 Hurricane Electric LLC
• AS1103 SURF B.V.
• AS24482 SG.GS
• AS37721 Virtual Technologies & Solutions
• AS34019 Hivane Association
• AS34927 iFog GmbH

Downstream networks

• AS203966 A1 Internet BV

Adjacent networks

• AS6424 EDGOO NETWORKS UNIPESSOAL LDA
• AS57866 Fusix Networks B.V.
• AS44854 Arend Brouwer
• AS203966 A1 Internet BV
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS34927 iFog GmbH
• AS34019 Hivane Association
• AS37721 Virtual Technologies & Solutions
• AS1103 SURF B.V.

Routing security

• RPKI: 12 valid, 0 invalid and 0 not-found announcements; 15 ROAs.
• ASPA: none published.
• IRR: 67% of announcements registered; 10 route objects.
• Listed in as-sets: AS-EDGOO, AS-RETN-ACTUAL-V4, AS-TRANSROUTE-SPEC, AS211251:AS-A1-TRANSIT, AS211251:AS-DOWNSTREAMS, AS51088:AS-TMNL-IXP-PEERS, AS6424:AS-DOWNSTREAMS.