ASN Lookup Tool

SysEleven GmbH syseleven.de DE DE 27 Routes

AS Data

AS25291

AS25291 – SysEleven GmbH

AS Number 25291
AS Name SYSELEVEN
Organization SysEleven GmbH(org-sg57-ripe)
Country DE
Website syseleven.de
Number of IPv4 Routes 17
Number of IPv6 Routes 10
ASN type HOSTING
Allocation Status ASSIGNED
Registry RIPE
Date Allocated 2009-12-07

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Use ASN data for AS25291 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
2a04:d480:4400::/38 ~1×10²⁷
185.46.136.0/22 1024
185.56.104.0/23 512
185.245.103.0/24 256
2a04:d480:4800::/38 ~1×10²⁷
37.44.0.0/21 2048
2a04:d480:2400::/38 ~1×10²⁷
185.56.128.0/21 2048
195.192.128.0/21 2048
2a04:d480::/38 ~1×10²⁷

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 'AS25251 - AS25361'

as-block:       AS25251 - AS25361
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:        2018-11-22T15:27:30Z
last-modified:  2018-11-22T15:27:30Z
source:         RIPE

% Information related to 'AS25291'

% Abuse contact for 'AS25291' is 'ripe-abuse@syseleven.de'

aut-num:        AS25291
as-name:        SYSELEVEN
descr:          SysEleven GmbH
descr:          Boxhagener Strasse 80
descr:          D-10245 Berlin
descr:          Germany
org:            ORG-SG57-RIPE
remarks:
remarks:        SysEleven GmbH
remarks:        AS25291 (as-set: AS-SYSELEVEN)
remarks:
remarks:        24/7 NOC contact: noc@syseleven.de
remarks:        Peering contact: peering@syseleven.de
remarks:
remarks:        Network information: https://isp.syseleven.net
remarks:        PeeringDB record: http://as25291.peeringdb.com
remarks:
remarks:        --------------------------------------------------------
remarks:
remarks:        Import / Export policies for UPSTREAMS:
remarks:
remarks:        > Inter.link GmbH / AS5405
import:         from AS5405 accept ANY
export:         to AS5405 announce AS-INTERDOTLINK
mp-import:      afi ipv6.unicast from AS5405 accept ANY
mp-export:      afi ipv6.unicast to AS5405 announce AS-INTERDOTLINK
remarks:
remarks:        > NTT / NTT Communications / AS2914
import:         from AS2914 accept ANY
export:         to AS2914 announce AS-INTERDOTLINK
mp-import:      afi ipv6.unicast from AS2914 accept ANY
mp-export:      afi ipv6.unicast to AS2914 announce AS-INTERDOTLINK
remarks:
remarks:        > TELIA / Telia Carrier / AS1299
import:         from AS1299 accept ANY
export:         to AS1299 announce AS-INTERDOTLINK
mp-import:      afi ipv6.unicast from AS1299 accept ANY
mp-export:      afi ipv6.unicast to AS1299 announce AS-INTERDOTLINK
remarks:
remarks:        --------------------------------------------------------
remarks:
remarks:        IMPORT / EXPORT policies for CUSTOMERS:
remarks:
import:         from AS25291:AS-CUSTOMERS accept AS25291:AS-CUSTOMERS
export:         to AS25291:AS-CUSTOMERS announce ANY
remarks:
mp-import:      afi ipv6.unicast from AS25291:AS-CUSTOMERS accept AS25291:AS-CUSTOMERS
mp-export:      afi ipv6.unicast to AS25291:AS-CUSTOMERS announce ANY
remarks:
remarks:        --------------------------------------------------------
remarks:
remarks:        IMPORT / EXPORT policies for PEERS:
remarks:
import:         from AS25291:AS-PEERS accept AS25291:AS-PEERS
export:         to AS25291:AS-PEERS announce AS-INTERDOTLINK
remarks:
mp-import:      afi ipv6.unicast from AS25291:AS-PEERS accept AS25291:AS-PEERS
mp-export:      afi ipv6.unicast to AS25291:AS-PEERS announce AS-INTERDOTLINK
remarks:
remarks:        --------------------------------------------------------
remarks:
admin-c:        SAC57-RIPE
tech-c:         SNO9-RIPE
status:         ASSIGNED
remarks:
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         SYS11-MNT
created:        2009-12-07T12:31:42Z
last-modified:  2025-12-19T11:09:03Z
source:         RIPE # Filtered

organisation:   ORG-SG57-RIPE
org-name:       SysEleven GmbH
country:        DE
org-type:       LIR
address:        Boxhagener Strasse 80
address:        10245
address:        Berlin
address:        GERMANY
phone:          +49302332012100
fax-no:         +493061675550
admin-c:        SAC57-RIPE
tech-c:         SNO9-RIPE
abuse-c:        SNO9-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        SYS11-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SYS11-MNT
remarks:        Managed by SysEleven RIPE static templates
created:        2009-02-23T14:10:06Z
last-modified:  2020-12-16T12:37:08Z
source:         RIPE # Filtered

role:           SysEleven Administrative Contacts
address:        SysEleven GmbH
address:        Boxhagener Strasse 80
address:        D-10245 Berlin
address:        Germany
admin-c:        JI616-RIPE
tech-c:         HUHN1-RIPE
tech-c:         FTS-RIPE
tech-c:         PR17767-RIPE
tech-c:         WK3057-RIPE
nic-hdl:        SAC57-RIPE
remarks:        Managed by SysEleven RIPE static templates
abuse-mailbox:  ripe-abuse@syseleven.de
mnt-by:         SYS11-MNT
created:        2009-09-23T09:12:00Z
last-modified:  2026-02-12T09:25:57Z
source:         RIPE # Filtered

role:           SysEleven Network Operation Center
address:        SysEleven GmbH
address:        Boxhagener Strasse 80
address:        D-10245 Berlin
address:        Germany
admin-c:        SAC57-RIPE
tech-c:         PR17767-RIPE
tech-c:         FTS-RIPE
tech-c:         HUHN1-RIPE
tech-c:         WK3057-RIPE
nic-hdl:        SNO9-RIPE
remarks:        Managed by SysEleven RIPE static templates
abuse-mailbox:  ripe-abuse@syseleven.de
mnt-by:         SYS11-MNT
created:        2009-09-23T09:15:59Z
last-modified:  2026-02-12T09:24:46Z
source:         RIPE # Filtered

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

Parsed Whois Response

Peers

AS Number Description Country
AS25152 Reseaux IP Europeens Network Coordination Centre (RIPE NCC) NL
AS25152 Reseaux IP Europeens Network Coordination Centre RIPE NCC NL
AS13058 serve-u - Buchholz und Suenderhauf GbR DE
AS1299 Arelion Sweden AB SE
AS2914 NTT America, Inc. US
AS5405 Inter.link GmbH DE

Upstreams

AS Number Description Country
AS5405 Inter.link GmbH DE

Downstreams

AS Number Description Country
AS25152 Reseaux IP Europeens Network Coordination Centre RIPE NCC NL

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Frequently Asked Questions

ASN AS25291 is an Autonomous System Number used to identify a network for BGP internet routing.
AS25291 is listed under SysEleven GmbH.
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.