What is ASN AS203924?

ASN AS203924 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS203924?

AS203924 is listed under buerodata AG.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS203924 buerodata AG | IPGeolocation.io

ASN Lookup Tool

buerodata AG buerodata.de

DE 15 Routes

AS Data

AS203924

AS203924 – buerodata AG

AS Number	203924
AS Name	buerodata
Organization	buerodata AG(org-ba807-ripe)
Country	DE
Website	buerodata.de
Number of IPv4 Routes	11
Number of IPv6 Routes	4
ASN type	BUSINESS
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2015-10-02

ASN Intelligence API for production workflows

Use ASN data for AS203924 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
185.146.36.0/24	AS203924	buerodata AG	buerodata AG	256
85.117.254.0/23	AS203924	buerodata AG	buerodata AG	512
85.117.252.0/23	AS203924	buerodata AG	buerodata AG	512
185.216.121.0/24	AS203924	buerodata AG	buerodata AG	256
185.113.147.0/24	AS203924	buerodata AG	Buerodata Datacenter Network Stadtlohn	256
185.113.144.0/24	AS203924	buerodata AG	Buerodata infrastructure	256
2a07:4d04::/30	AS203924	buerodata AG	buerodata AG	~317×10²⁷
2a07:4d00::/30	AS203924	buerodata AG	buerodata AG	~317×10²⁷
2a0b:b640::/30	AS203924	buerodata AG	buerodata AG	~317×10²⁷
185.113.146.0/24	AS203924	buerodata AG	Broadband Services Customers Ahaus	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 'AS203889 - AS203938'

as-block:       AS203889 - AS203938
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:        2026-03-05T15:29:31Z
last-modified:  2026-03-05T15:29:31Z
source:         RIPE

% Information related to 'AS203924'

% Abuse contact for 'AS203924' is 'nmc@buerodata.de'

aut-num:        AS203924
as-name:        buerodata
org:            ORG-BA807-RIPE
import:         from AS33891 accept ANY
export:         to AS33891 announce AS203924
export:         to AS33891 announce AS204672
import:         from AS204672 accept ANY
export:         to AS204672 announce ANY
mp-import:      afi ipv6.unicast from AS33891 accept ANY
mp-export:      afi ipv6.unicast to AS33891 announce AS203924
mp-export:      afi ipv6.unicast to AS33891 announce AS198726
mp-import:      afi ipv6.unicast from AS198726 accept ANY
mp-export:      afi ipv6.unicast to AS198726 announce ANY
admin-c:        BR3636-RIPE
tech-c:         BR3636-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         de-buerodata-1-mnt
created:        2015-10-02T14:25:48Z
last-modified:  2018-09-04T11:40:24Z
source:         RIPE

organisation:   ORG-BA807-RIPE
org-name:       buerodata AG
country:        DE
org-type:       LIR
address:        Vredenerstrasse 119
address:        48703
address:        Stadtlohn
address:        GERMANY
phone:          +49 2563 9305 0
admin-c:        RL10950-RIPE
abuse-c:        AR33108-RIPE
mnt-ref:        de-buerodata-1-mnt
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         de-buerodata-1-mnt
mnt-ref:        RIPE-NCC-HM-MNT
created:        2015-08-04T15:28:28Z
last-modified:  2023-02-06T19:34:09Z
source:         RIPE # Filtered

role:           buerodata role
address:        Vredenerstrasse 119
nic-hdl:        BR3636-RIPE
admin-c:        RL10950-RIPE
mnt-by:         de-buerodata-1-mnt
created:        2015-08-12T18:35:20Z
last-modified:  2023-02-06T19:39:29Z
source:         RIPE # Filtered

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

Parsed Whois Response

Peers

AS Number	Description	Country
AS24482	SG.GS	SG
AS25220	equada network GmbH	DE
AS6939	Hurricane Electric LLC	US
AS33891	Core-Backbone GmbH	DE
AS24961	WIIT AG	DE
AS41692	OpenCarrier eG	DE
AS9136	Wobcom GmbH	DE
AS198726	Wemaconnect GmbH	DE
AS33891	Core Backbone GmbH	DE
AS3214	xTom GmbH	DE

Upstreams

AS Number	Description	Country
AS6939	Hurricane Electric LLC	US
AS205112	PHILUNET GmbH	DE
AS33891	Core Backbone GmbH	DE
AS3214	xTom GmbH	DE