ASN Lookup Tool

A1 Internet BV a1.nl NL NL 11 Routes

AS Data

AS211251

AS211251A1 Internet BV

AS Number 211251
AS Name A1-DC
Organization A1 Internet BV(org-bolb1-ripe)
Country NL
Website a1.nl
Number of IPv4 Routes 11
Number of IPv6 Routes 0
ASN type ISP
Allocation Status ASSIGNED
Registry RIPE
Date Allocated 2021-05-28

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Use ASN data for AS211251 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
79.98.179.0/24 256
213.171.64.0/23 512
213.171.66.0/23 512
213.171.68.0/23 512
213.171.74.0/24 256
213.171.72.0/24 256
79.98.177.0/24 256
91.142.132.0/24 256
213.171.67.0/24 256
79.98.176.0/24 256

Raw Whois Response

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to 'AS208189 - AS214345'

as-block:       AS208189 - AS214345
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2026-02-12T14:40:05Z
last-modified:  2026-02-12T14:40:05Z
source:         RIPE

% Information related to 'AS211251'

% Abuse contact for 'AS211251' is 'harry@a1.nl'

aut-num:        AS211251
as-name:        A1-DC
org:            ORG-BoLB1-RIPE
import:         from AS57866 accept ANY
export:         to AS57866 announce AS211251:AS-DOWNSTREAMS
import:         from AS6424 accept ANY
export:         to AS6424 announce AS211251:AS-DOWNSTREAMS
import:         from AS44854 accept ANY
export:         to AS44854 announce AS211251:AS-DOWNSTREAMS
admin-c:        JJ4842-RIPE
tech-c:         jj4842-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         A1-LIR-MNT
created:        2021-05-28T08:57:35Z
last-modified:  2024-10-09T15:31:15Z
source:         RIPE

organisation:   ORG-BoLB1-RIPE
org-name:       A1 Internet BV
country:        NL
org-type:       LIR
address:        Abelenstra Boulevard 52-10
address:        8448JB
address:        Heerenveen
address:        NETHERLANDS
phone:          +31 513 646493
fax-no:         +31 513 744052
abuse-c:        AR16125-RIPE
admin-c:        JJ4842-RIPE
admin-c:        MK3766-RIPE
mnt-ref:        A1-LIR-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         A1-LIR-MNT
created:        2004-04-17T11:39:53Z
last-modified:  2021-05-26T07:22:09Z
source:         RIPE # Filtered

person:         Johan Jager
address:        Minerva 36
address:        8448CS
address:        Heerenveen
address:        The Netherlands
phone:          +31513513555
nic-hdl:        JJ4842-RIPE
mnt-by:         A1-LIR-MNT
created:        2015-09-17T21:17:28Z
last-modified:  2021-05-26T08:43:38Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.121.2 (ABERDEEN)

Parsed Whois Response

Peers

AS Number Description Country
AS50869 IPng Networks GmbH CH
AS39351 31173 Services AB SE
AS6939 Hurricane Electric LLC US
AS6204 ZET.NET IP Transit RO
AS9136 Wobcom GmbH DE
AS209267 Velorum B.V. NL
AS60144 3W Infra B.V. NL
AS199524 G-Core Labs S.A. LU
AS57344 Telehouse EAD BG
AS20764 CJSC RASCOM RU

Upstreams

AS Number Description Country
AS34019 Hivane Association FR
AS57866 Fusix Networks B.V. NL
AS50869 IPng Networks GmbH CH
AS20764 CJSC RASCOM RU
AS6424 EDGOO NETWORKS UNIPESSOAL LDA PT
AS6204 ZET.NET IP Transit RO
AS6939 Hurricane Electric LLC US
AS8298 IPng Networks GmbH CH
AS1103 SURF B.V. NL
AS44854 Arend Brouwer NL

Downstreams

AS Number Description Country
AS203966 A1 Internet BV NL

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Frequently Asked Questions

ASN AS211251 is an Autonomous System Number used to identify a network for BGP internet routing.
AS211251 is listed under A1 Internet BV.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.