12732 GUTCON-NET Carrier51 GmbH, GutCon GmbH, DE
Adjacency: 9 Upstream: 4 Downstream: 5
Upstream Adjacent AS list
AS174 COGENT-174 - Cogent Communications, LLC, US
AS3257 GTT-BACKBONE GTT, US
AS3356 LEVEL3 - Level 3 Parent, LLC, US
AS30742 BRITELINE-AS, DE
Downstream Adjacent AS list
AS203965 ASAVM, DE
AS15657 SPEEDBONE-AS, DE
AS8875 SINMA-ASN, DE
AS44716 DHOSTING-NET, DE
AS25516 INIT-AS, DE
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 23012 AS12732 ORG+TRN Originate: 2304 /20.83 Transit: 83712 /15.65 GUTCON-NET Carrier51 GmbH, GutCon GmbH, DE
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 32470 AS12732 GUTCON-NET Carrier51 GmbH, GutCon GmbH, DE 6 0 0 6 0 0.00% Prefix AS Path Aggregation Suggestion 91.199.214.0/24 4777 2497 174 12732 193.34.120.0/22 4777 2516 3257 12732 193.34.121.0/24 4777 6939 30742 12732 193.34.122.0/24 4777 6939 30742 12732 212.21.71.0/24 4777 2497 174 12732 212.42.230.0/24 4777 2516 3356 12732 12732 12732
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS12732 4 More Specifics 6 Total Advertisements GUTCON-NET Carrier51 GmbH, GutCon GmbH, DE
193.34.121.0/24 193.34.120.0/22
193.34.122.0/24 193.34.120.0/22
212.21.71.0/24 212.21.64.0/19
212.42.230.0/24 212.42.224.0/19
whois: 402332
IANA has recorded AS12732 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS12732\n % 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.
% Information related to 'AS12557 - AS13223'
as-block: AS12557 - AS13223
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: 2018-11-22T15:27:24Z
last-modified: 2018-11-22T15:27:24Z
source: RIPE
% Information related to 'AS12732'
% Abuse contact for 'AS12732' is 'abuse@all.de'
aut-num: AS12732
as-name: GUTCON-NET
descr: Carrier51 GmbH, GutCon GmbH
org: ORG-GG17-RIPE
remarks:
remarks: -----------------------------------------------------
remarks: Upstreams:
remarks: -----------------------------------------------------
import: from AS174 accept ANY
export: to AS174 announce AS12732:AS-ALL
mp-import: afi ipv6.unicast from AS174 accept ANY
mp-export: afi ipv6.unicast to AS174 announce AS12732:AS-ALL
remarks:
import: from AS286 accept ANY
export: to AS286 announce AS12732:AS-ALL
mp-import: afi ipv6.unicast from AS286 accept ANY
mp-export: afi ipv6.unicast to AS286 announce AS12732:AS-ALL
remarks:
import: from AS3356 accept ANY
export: to AS3356 announce AS12732:AS-ALL
mp-import: afi ipv6.unicast from AS3356 accept ANY
mp-export: afi ipv6.unicast to AS3356 announce AS12732:AS-ALL
remarks:
import: from AS5405 accept ANY
export: to AS5405 announce AS12732:AS-ALL
mp-import: afi ipv6.unicast from AS5405 accept ANY
mp-export: afi ipv6.unicast to AS5405 announce AS12732:AS-ALL
remarks:
import: from AS-SYSELEVEN accept ANY
export: to AS-SYSELEVEN announce AS12732:AS-ALL
mp-import: afi ipv6.unicast from AS-SYSELEVEN accept ANY
mp-export: afi ipv6.unicast to AS-SYSELEVEN announce AS12732:AS-ALL
remarks:
import: from AS6667 accept AS-AMS-IX-RS
export: to AS6667 announce AS12732:AS-ALL
mp-import: afi ipv6.unicast from AS6667 accept AS-AMS-IX-RS-V6
mp-export: afi ipv6.unicast to AS6667 announce AS12732:AS-ALL
remarks:
import: from AS16374 accept AS-BCIX-RS
export: to AS16374 announce AS12732:AS-ALL
mp-import: afi ipv6.unicast from AS16374 accept AS-BCIX-RS
mp-export: afi ipv6.unicast to AS16374 announce AS12732:AS-ALL
remarks:
import: from AS6695 accept AS-DECIX
export: to AS6695 announce AS12732:AS-ALL
mp-import: afi ipv6.unicast from AS6695 accept AS-DECIX
mp-export: afi ipv6.unicast to AS6695 announce AS12732:AS-ALL
remarks:
import: from AS9033 accept AS-ECIX-BER
export: to AS9033 announce AS12732:AS-ALL
mp-import: afi ipv6.unicast from AS9033 accept AS-ECIX-BER
mp-export: afi ipv6.unicast to AS9033 announce AS12732:AS-ALL
remarks:
import: from AS9033 accept AS-ECIX-DUS
export: to AS9033 announce AS12732:AS-ALL
mp-import: afi ipv6.unicast from AS9033 accept AS-ECIX-DUS
mp-export: afi ipv6.unicast to AS9033 announce AS12732:AS-ALL
remarks:
import: from AS9033 accept AS-ECIX-HAM
export: to AS9033 announce AS12732:AS-ALL
mp-import: afi ipv6.unicast from AS9033 accept AS-ECIX-HAM
mp-export: afi ipv6.unicast to AS9033 announce AS12732:AS-ALL
remarks:
remarks: -----------------------------------------------------
remarks: Downstreams:
remarks: -----------------------------------------------------
import: from AS12732:AS-DOWNSTREAMS accept AS12732:AS-DOWNSTREAMS
export: to AS12732:AS-DOWNSTREAMS announce ANY
mp-import: afi ipv6.unicast from AS12732:AS-DOWNSTREAMS accept AS12732:AS-DOWNSTREAMS
mp-export: afi ipv6.unicast to AS12732:AS-DOWNSTREAMS announce ANY
remarks: -----------------------------------------------------
remarks:
remarks: Peerings (IPv4 & IPv6) are welcome ;-)
remarks:
remarks: --------------------------------------------------------
remarks: Community Support Definitions for Customers
remarks: --------------------------------------------------------
remarks:
remarks: 1. Communities controlling AS path prepending for routes on egress:
remarks:
remarks: 12732:1000 do not announce at BCIX
remarks: 12732:1001 prepend once at BCIX
remarks: 12732:1002 prepend twice at BCIX
remarks:
remarks: 12732:2000 do not announce at DECIX
remarks: 12732:2001 prepend once at DECIX
remarks: 12732:2002 prepend twice at DECIX
remarks:
remarks: 12732:3000 do not announce at ECIX-DUS
remarks: 12732:3001 prepend once at ECIX-DUS
remarks: 12732:3002 prepend twice at ECIX-DUS
remarks:
remarks: 12732:3050 do not announce at ECIX-BER
remarks: 12732:3051 prepend once at ECIX-BER
remarks: 12732:3052 prepend twice at ECIX-BER
remarks:
remarks: 12732:3100 do not announce at ECIX-HAM
remarks: 12732:3101 prepend once at ECIX-HAM
remarks: 12732:3102 prepend twice at ECIX-HAM
remarks:
remarks: 12732:4300 do not announce at AMSIX
remarks: 12732:4301 prepend once at AMSIX
remarks: 12732:4302 prepend twice at AMSIX
remarks:
remarks: 12732:9000 backup only (below peers, uplink, customer)
remarks: 12732:9001 to customer only
remarks: 12732:9001 to customer and peering
remarks:
remarks: 12732:9013 do not announce to Cogent
remarks: 12732:9014 do not announce to KPN
remarks: 12732:9015 do not announce to Lumen
remarks: 12732:9016 do not announce to SysEleven
remarks:
remarks: 2. Communities tagging the source of routes
remarks:
remarks: 12732:100 peer route, learned at BCIX
remarks: 12732:200 peer route, learned at DECIX
remarks: 12732:300 peer route, learned at ECIX-DUS
remarks: 12732:305 peer route, learned at ECIX-BER
remarks: 12732:310 peer route, learned at ECIX-HAM
remarks: 12732:430 peer route, learned at AMSIX
remarks:
remarks: 12732:21 peer route, learned in Düsseldorf, DE
remarks: 12732:31 peer route, learned in Amsterdam, NL
remarks: 12732:30 peer route, learned in Berlin, DE
remarks: 12732:40 peer route, learned in Hamburg, DE
remarks: 12732:69 peer route, learned in Frankfurt, DE
remarks: --------------------------------------------------------
remarks:
tech-c: ALL100-RIPE
admin-c: ALL100-RIPE
mnt-by: ALL-MNT
mnt-by: RIPE-NCC-END-MNT
status: ASSIGNED
created: 2002-07-24T00:39:28Z
last-modified: 2025-12-02T18:49:17Z
source: RIPE
sponsoring-org: ORG-bEN1-RIPE
organisation: ORG-GG17-RIPE
org-name: GutCon GmbH
country: DE
org-type: OTHER
address: Offenwardenermoor 14
address: 27628 Sandstedt
address: Germany
phone: +49 30 52004 3328
fax-no: +49 30 52004 3329
reg-nr: District court Tostedt HRB 200805
admin-c: AS33-RIPE
tech-c: AS33-RIPE
abuse-c: GRD22-RIPE
mnt-ref: ALL-MNT
mnt-by: ALL-MNT
created: 2008-02-19T15:15:39Z
last-modified: 2026-04-29T06:25:07Z
source: RIPE # Filtered
%ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
%
% Queries from your IP address have passed the daily limit of controlled objects.
% Access from your host has been temporarily denied.
% For more information, see
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% This query was served by the RIPE Database Query Service version 1.122 (ABERDEEN)