43872 OPTINET, GB
Adjacency: 8 Upstream: 8 Downstream: 0
Upstream Adjacent AS list
AS3257 GTT-BACKBONE GTT, US
AS37100 SEACOM-AS, MU
AS3741 IS, ZA
AS12552 IPO-EU, SE
AS174 COGENT-174, US
AS6939 HURRICANE, US
AS1299 TWELVE99 Arelion, fka Telia Carrier, SE
AS6461 ZAYO-6461, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 13515 AS43872 ORIGIN Originate: 6400 /19.36 Transit: 0 /0.00 OPTINET, 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 % 44168 AS43872 OPTINET, GB 16 0 0 16 0 0.00% Prefix AS Path Aggregation Suggestion 5.253.252.0/22 3257 43872 45.136.108.0/24 3257 43872 84.38.246.0/24 3257 43872 91.201.105.0/24 3257 43872 92.118.111.0/24 2497 174 43872 176.101.169.0/24 3257 43872 185.183.20.0/22 3257 43872 185.187.61.0/24 3257 43872 185.253.176.0/22 3257 43872 193.105.189.0/24 3257 43872 193.247.94.0/24 3257 43872 193.247.101.0/24 3257 43872 193.247.103.0/24 2497 174 43872 193.247.165.0/24 3257 43872 195.234.28.0/24 3257 43872 217.198.183.0/24 3257 43872
Prefixes added and withdrawn by this origin AS in the past 7 days.
- 84.38.246.0/24 Withdrawn
whois: 402603
IANA has recorded AS43872 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS43872\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 'AS43075 - AS44168'
as-block: AS43075 - AS44168
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: 2023-12-11T15:09:58Z
last-modified: 2023-12-11T15:09:58Z
source: RIPE
% Information related to 'AS43872'
% Abuse contact for 'AS43872' is 'abuse@optinet.co.uk'
aut-num: AS43872
as-name: OPTINET
org: ORG-OUL4-RIPE
import: from AS174 accept ANY
export: to AS174 announce AS43872
import: from AS3257 accept ANY
export: to AS3257 announce AS43872
import: from AS6461 accept ANY
export: to AS6461 announce AS43872
import: from AS1299 accept ANY
export: to AS1299 announce AS43872
admin-c: SP16055-RIPE
tech-c: NO1784-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: uk-optinet-1-mnt
created: 2016-12-20T14:17:07Z
last-modified: 2025-11-28T12:30:51Z
source: RIPE
organisation: ORG-OUL4-RIPE
org-name: Optinet U.K. Limited
country: GB
reg-nr: 10482483
org-type: LIR
address: Floor 24 One Canada Square
address: E14 5AA
address: London
address: UNITED KINGDOM
phone: +442033193701
admin-c: SP16055-RIPE
tech-c: NO1784-RIPE
abuse-c: AR56859-RIPE
mnt-ref: uk-optinet-1-mnt
mnt-by: RIPE-NCC-HM-MNT
mnt-by: uk-optinet-1-mnt
created: 2016-12-19T14:53:59Z
last-modified: 2026-05-13T07:23:15Z
source: RIPE # Filtered
%ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
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% Access from your host has been temporarily denied.
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% This query was served by the RIPE Database Query Service version 1.122.1 (ABERDEEN)