205544 LEASEWEB-UK-LON-11 - Leaseweb UK Limited, GB
Adjacency: 4 Upstream: 4 Downstream: 0
Upstream Adjacent AS list
AS16265 LEASEWEB-NETWORK - LeaseWeb Network B.V., NL
AS6453 AS6453 - TATA COMMUNICATIONS (AMERICA) INC, US
AS1299 TWELVE99 - Arelion Sweden AB, SE
AS3257 GTT-BACKBONE - GTT Communications Inc., US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 4154 AS205544 ORIGIN Originate: 55296 /16.25 Transit: 0 /0.00 LEASEWEB-UK-LON-11 - Leaseweb UK Limited, 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 % 4111 AS205544 LEASEWEB-UK-LON-11 - Leaseweb UK Limited, GB 60 16 3 47 13 21.67% Prefix AS Path Aggregation Suggestion 23.19.56.0/21 4777 2516 3257 205544 23.19.56.0/24 4777 2516 1299 205544 23.19.59.0/24 4777 2516 1299 205544 23.19.62.0/24 4777 2516 1299 205544 23.81.32.0/21 4777 2516 1299 205544 23.106.32.0/21 4777 2516 1299 205544 23.106.56.0/21 4777 2516 1299 205544 23.106.232.0/21 4777 2516 1299 205544 31.58.18.0/24 4777 2516 1299 205544 31.58.22.0/24 4777 2516 1299 205544 31.58.28.0/24 4777 2516 1299 205544 31.58.32.0/24 4777 2516 1299 205544 31.59.15.0/24 4777 2516 1299 205544 31.59.20.0/23 4777 2516 1299 205544 + Announce - aggregate of 31.59.20.0/24 (4777 2516 1299 205544) and 31.59.21.0/24 (4777 2516 1299 205544) 31.59.20.0/24 4777 2516 1299 205544 - Withdrawn - aggregated with 31.59.21.0/24 (4777 2516 1299 205544) 31.59.21.0/24 4777 2516 1299 205544 - Withdrawn - aggregated with 31.59.20.0/24 (4777 2516 1299 205544) 31.59.27.0/24 4777 2516 1299 205544 31.59.28.0/24 4777 2516 1299 205544 31.59.33.0/24 4777 2516 1299 205544 37.44.216.0/22 4777 2516 1299 205544 38.246.186.0/23 4777 2516 1299 205544 38.253.124.0/23 4777 2516 1299 205544 45.153.20.0/24 4777 2516 1299 205544 81.17.56.0/21 4777 2516 1299 205544 81.17.56.0/22 4777 2516 1299 205544 - Withdrawn - matching aggregate 81.17.56.0/21 4777 2516 1299 205544 81.17.60.0/24 4777 2516 1299 205544 - Withdrawn - matching aggregate 81.17.56.0/21 4777 2516 1299 205544 81.17.61.0/24 4777 2516 3257 205544 81.17.62.0/23 4777 2516 3257 205544 + Announce - aggregate of 81.17.62.0/24 (4777 2516 3257 205544) and 81.17.63.0/24 (4777 2516 3257 205544) 81.17.62.0/24 4777 2516 3257 205544 - Withdrawn - aggregated with 81.17.63.0/24 (4777 2516 3257 205544) 81.17.63.0/24 4777 2516 3257 205544 - Withdrawn - aggregated with 81.17.62.0/24 (4777 2516 3257 205544) 82.38.198.0/24 4777 2516 1299 205544 82.41.197.0/24 4777 2516 3257 205544 82.113.64.0/19 4777 2516 1299 205544 92.249.32.0/22 4777 2516 1299 205544 95.168.176.0/20 4777 2516 3257 205544 95.168.176.0/21 4777 2516 3257 205544 - Withdrawn - matching aggregate 95.168.176.0/20 4777 2516 3257 205544 95.168.184.0/24 4777 2516 1299 205544 95.168.185.0/24 4777 2516 3257 205544 - Withdrawn - matching aggregate 95.168.176.0/20 4777 2516 3257 205544 95.168.186.0/23 4777 2516 3257 205544 - Withdrawn - matching aggregate 95.168.176.0/20 4777 2516 3257 205544 95.168.186.0/24 4777 2516 3257 205544 - Withdrawn - matching aggregate 95.168.176.0/20 4777 2516 3257 205544 95.168.187.0/24 4777 2516 1299 205544 95.168.188.0/22 4777 2516 3257 205544 - Withdrawn - matching aggregate 95.168.176.0/20 4777 2516 3257 205544 103.173.197.0/24 4777 2516 1299 205544 173.208.48.0/21 4777 2516 1299 205544 173.234.16.0/21 4777 2516 1299 205544 173.234.16.0/24 4777 2516 3257 205544 173.234.17.0/24 4777 2516 1299 205544 - Withdrawn - matching aggregate 173.234.16.0/21 4777 2516 1299 205544 173.234.18.0/23 4777 2516 1299 205544 - Withdrawn - matching aggregate 173.234.16.0/21 4777 2516 1299 205544 173.234.18.0/24 4777 2516 1299 205544 - Withdrawn - matching aggregate 173.234.16.0/21 4777 2516 1299 205544 173.234.19.0/24 4777 2516 3257 205544 173.234.20.0/22 4777 2516 3257 205544 + Announce - aggregate of 173.234.20.0/23 (4777 2516 3257 205544) and 173.234.22.0/23 (4777 2516 3257 205544) 173.234.20.0/23 4777 2516 3257 205544 - Withdrawn - aggregated with 173.234.22.0/23 (4777 2516 3257 205544) 173.234.22.0/23 4777 2516 3257 205544 - Withdrawn - aggregated with 173.234.20.0/23 (4777 2516 3257 205544) 173.234.72.0/21 4777 2516 1299 205544 173.234.136.0/21 4777 2516 1299 205544 176.113.64.0/22 4777 2516 1299 205544 185.222.24.0/22 4777 2516 3257 205544 185.222.24.0/24 4777 2516 1299 205544 185.236.92.0/22 4777 2516 1299 205544 185.245.124.0/22 4777 2516 1299 205544 193.160.76.0/22 4777 2516 1299 205544 194.56.232.0/24 4777 2516 3257 205544 212.135.128.0/24 4777 2516 1299 205544
whois: 402628
IANA has recorded AS205544 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS205544\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 'AS203940 - AS205662'
as-block: AS203940 - AS205662
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 'AS205544'
% Abuse contact for 'AS205544' is 'abuse@uk.leaseweb.com'
aut-num: AS205544
as-name: LEASEWEB-UK-LON-11
org: ORG-LUL9-RIPE
remarks: -------- LeaseWeb Peering Network
mp-import: from AS162655 accept ANY
mp-export: to AS16265 announce AS205544
import: from AS16265 accept ANY
export: to AS16265 announce AS205544
remarks: -------- TRANSIT
mp-import: from AS1299 accept ANY
mp-export: to AS1299 announce AS205544
import: from AS1299 accept ANY
export: to AS1299 announce AS205544
mp-import: from AS174 accept ANY
mp-export: to AS174 announce AS205544
import: from AS174 accept ANY
export: to AS174 announce AS205544
mp-import: from AS6453 accept ANY
mp-export: to AS6453 announce AS205544
import: from AS6453 accept ANY
export: to AS6453 announce AS205544
mp-import: from AS3257 accept ANY
mp-export: to AS3257 announce AS205544
import: from AS3257 accept ANY
export: to AS3257 announce AS205544
admin-c: LUN2-RIPE
tech-c: LUN2-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: leaseweb-uk-mnt
created: 2017-07-26T13:57:15Z
last-modified: 2018-09-04T12:03:41Z
source: RIPE
organisation: ORG-LUL9-RIPE
org-name: Leaseweb UK Limited
country: GB
reg-nr: 10879718
org-type: LIR
address: 2 Eastbourne Terrace
address: W2 6LG
address: London
address: UNITED KINGDOM
phone: +31 20 3165168
phone: +316 52 86 9594
admin-c: LUN2-RIPE
tech-c: LUN2-RIPE
abuse-c: AR43136-RIPE
mnt-ref: leaseweb-uk-mnt
mnt-by: RIPE-NCC-HM-MNT
mnt-by: leaseweb-uk-mnt
created: 2017-09-20T07:35:08Z
last-modified: 2026-05-13T07:11:43Z
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
% https://docs.db.ripe.net/FAQ#why-did-i-receive-an-error-201-access-denied
% This query was served by the RIPE Database Query Service version 1.122.1 (BUSA)