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AS211829 ZHA ARCHITECTS LIMITED

United Kingdom Zaha RIPE 1 IPv4 prefix 0 IPv6 prefixes
IPv4 addresses
256
IPv6 /48 networks
0
RPKI
0 valid1 no ROA
Peers and downstreams
1

Holder

AS name
Zaha
Description
ZHA ARCHITECTS LIMITED
Organisation
ZHA ARCHITECTS LIMITED
Abuse contact
lee.wyles@zaha-hadid.com
Assigned
2021-02-09
Registered
2021-02-10
Record last changed
2021-02-10 18:01 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths
AS6939 Hurricane Electric LLC AS6939 · US Hurricane Electric LLC AS24482 SG.GS AS24482 · SG SG.GS AS35280 F5 Networks SARL AS35280 · FR F5 Networks SARL AS3356 Level 3 Parent, LLC AS3356 · US Level 3 Parent, LLC AS8220 COLT Technology Services Group Limited AS8220 · GB COLT Technology Servi… AS211829 ZHA ARCHITECTS LIMITED AS211829 · GB ZHA ARCHITECTS LIMITED

Network health

Grade E · 40/100
fail Prefixes covered by valid ROAs
0 of 1 announced prefixes are RPKI valid, 1 have no ROA.		 0/25
pass No RPKI invalid announcements
None of the announcements is RPKI invalid.		 10/10
fail Announces IPv6
No IPv6 prefixes are announced.		 0/15
partly More than one upstream
1 upstream seen in BGP.		 5/10
pass Working abuse contact
lee.wyles@zaha-hadid.com is published.		 15/15
fail Publishes a geofeed
No geofeed found. Without one, location databases have to guess.		 0/10
pass No prefixes smaller than /24 or /48
All prefixes are /24 (IPv4) or /48 (IPv6) or larger.		 10/10
fail Registry record maintained
Last changed 2021-02-10.		 0/5
Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.
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Routing changes

Last 30 days
2026-10-04 12:06 UTCRelationship changed AS174 upstream to peer

WHOIS

aut-num:        AS211829
as-name:        Zaha
org:            ORG-ZHL8-RIPE
sponsoring-org: ORG-GATI1-RIPE
admin-c:        LW2806-RIPE
tech-c:         AD16160-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         COGENT-HM-MNT
created:        2021-02-10T18:01:52Z
last-modified:  2021-02-10T18:01:52Z
source:         RIPE
% 4 routing policy lines (import/export) not shown