12761 COLT-CORP-IT Colt Technology Services Corporate IT, GB
Adjacency: 1 Upstream: 1 Downstream: 0
Upstream Adjacent AS list
AS8220 COLT COLT Technology Services Group Limited, GB
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 30336 AS12761 ORIGIN Originate: 1536 /21.42 Transit: 0 /0.00 COLT-CORP-IT Colt Technology Services Corporate IT, GB
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 % 12289 AS12761 COLT-CORP-IT Colt Technology Services Corpora 6 4 1 3 3 50.00% Prefix AS Path Aggregation Suggestion 193.118.162.0/24 4777 2497 8220 12761 193.118.164.0/24 4777 2497 8220 12761 12761 12761 217.111.164.0/22 4777 2497 8220 12761 + Announce - aggregate of 217.111.164.0/23 (4777 2497 8220 12761) and 217.111.166.0/23 (4777 2497 8220 12761) 217.111.164.0/24 4777 2497 8220 12761 - Withdrawn - aggregated with 217.111.165.0/24 (4777 2497 8220 12761) 217.111.165.0/24 4777 2497 8220 12761 - Withdrawn - aggregated with 217.111.164.0/24 (4777 2497 8220 12761) 217.111.166.0/24 4777 2497 8220 12761 - Withdrawn - aggregated with 217.111.167.0/24 (4777 2497 8220 12761) 217.111.167.0/24 4777 2497 8220 12761 - Withdrawn - aggregated with 217.111.166.0/24 (4777 2497 8220 12761)
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS12761 6 More Specifics 6 Total Advertisements COLT-CORP-IT Colt Technology Services Corporate IT, GB
193.118.162.0/24 193.118.160.0/20
193.118.164.0/24 193.118.160.0/20
217.111.164.0/24 217.110.0.0/15
217.111.165.0/24 217.110.0.0/15
217.111.166.0/24 217.110.0.0/15
217.111.167.0/24 217.110.0.0/15
whois: 402332
IANA has recorded AS12761 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS12761\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 'AS12761'
% Abuse contact for 'AS12761' is 'abuse@colt.net'
aut-num: AS12761
as-name: COLT-CORP-IT
descr: Colt Technology Services Corporate IT
import: from AS8220 accept ANY
export: to AS8220 announce AS12761
org: ORG-CI9-RIPE
admin-c: COLT1-RIPE
tech-c: COLT1-RIPE
remarks: ---------------------------------------
remarks: AS has been migrated into AS8220
remarks:
remarks: For peering requests or queries please
remarks: contact peering@colt.net
remarks: ---------------------------------------
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: COLT-UK
created: 2002-01-22T14:10:32Z
last-modified: 2023-08-09T08:36:46Z
source: RIPE
organisation: ORG-CI9-RIPE
org-name: COLT Technology Services Group Limited
country: GB
org-type: LIR
address: Colt House, 20 Great Eastern Street,
address: EC2A 3EH
address: London
address: UNITED KINGDOM
phone: +442073903900
fax-no: +442078635610
admin-c: NG1400-RIPE
admin-c: EF139-RIPE
admin-c: MB7433-RIPE
abuse-c: CHM4-RIPE
mnt-ref: RIPE-NCC-HM-MNT
mnt-ref: COLT-UK
mnt-by: RIPE-NCC-HM-MNT
mnt-by: COLT-UK
created: 2004-04-17T12:12:30Z
last-modified: 2021-06-22T15:12:23Z
source: RIPE # Filtered
role: Internet Hostmaster
address: Network Engineering
address: Colt Technology Services
address: Powergate Business Centre
address: VOLT Avenue
address: London
address: NW10 6PW
admin-c: AJ574-RIPE
tech-c: RW1333-RIPE
tech-c: MB7433-RIPE
nic-hdl: COLT1-RIPE
mnt-by: COLT-MNT
created: 2002-04-24T15:13:27Z
last-modified: 2012-02-10T15:08:11Z
source: RIPE # Filtered
abuse-mailbox: abuse@colt.net
% This query was served by the RIPE Database Query Service version 1.121.2 (ABERDEEN)