AS209870 Cylo Ltd

United Kingdom Cylo RIPE 2 IPv4 prefixes 1 IPv6 prefix
IPv4 addresses
512
IPv6 /48 networks
524,288
RPKI
3 valid0 no ROA
Peers and downstreams
112

Holder

AS name
Cylo
Description
Cylo Ltd
Organisation
Cylo Ltd
Abuse contact
abusebox@cylo.net
Assigned
2025-04-23
Registered
2025-04-24
Record last changed
2026-08-28 13:37 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade A · 100/100
pass Prefixes covered by valid ROAs
3 of 3 announced prefixes are RPKI valid.
25/25
pass No RPKI invalid announcements
None of the announcements is RPKI invalid.
10/10
pass Announces IPv6
1 IPv6 prefix.
15/15
pass More than one upstream
3 upstreams seen in BGP.
10/10
pass Working abuse contact
abusebox@cylo.net is published.
15/15
pass Publishes a geofeed
A geofeed (RFC 8805) tells where the address space is used.
10/10
pass No prefixes smaller than /24 or /48
All prefixes are /24 (IPv4) or /48 (IPv6) or larger.
10/10
pass Registry record maintained
Last changed 2026-08-28.
5/5

Routing changes

Last 30 days
2026-10-04 11:51 UTCNeighbour gone AS137409 upstream
2026-10-04 11:51 UTCNeighbour gone AS58299 peer
2026-10-04 11:51 UTCNeighbour gone AS50869 upstream
2026-10-04 11:51 UTCNeighbour gone AS41051 upstream
2026-10-04 11:51 UTCNeighbour gone AS31027 peer
2026-10-04 11:51 UTCRelationship changed AS9198 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS9044 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS8966 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS8298 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS8218 upstream to peer
2026-10-04 11:51 UTCNew neighbour AS7195 peer
2026-10-04 11:51 UTCNew neighbour AS6797 peer
2026-10-04 11:51 UTCRelationship changed AS6663 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS6204 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS62000 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS61049 upstream to peer
2026-10-04 11:51 UTCNew neighbour AS6057 peer
2026-10-04 11:51 UTCRelationship changed AS58057 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS56911 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS56655 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS5405 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS50673 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS50629 upstream to peer
2026-10-04 11:51 UTCNew neighbour AS49917 peer
2026-10-04 11:51 UTCRelationship changed AS49434 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS48362 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS47147 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS4455 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS43727 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS42295 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS41327 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS39686 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS39351 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS39120 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS37497 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS37468 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS37100 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS35280 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS34927 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS34177 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS34019 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS33891 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS30886 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS30844 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS25091 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS24961 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS22356 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS20766 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS20764 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS1764 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS15958 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS15576 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS14840 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS13194 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS12779 upstream to peer
2026-10-04 11:51 UTCRelationship changed AS1031 upstream to peer
2026-10-04 11:51 UTCNew prefix 85.8.234.0/24

WHOIS

aut-num:        AS209870
as-name:        Cylo
org:            ORG-CL802-RIPE
remarks:        ================================================
remarks:        Cylo.net
remarks:        ================================================
remarks:        
remarks:        Peering Policy: Open
remarks:        Peering Contact: peering@cylo.net
remarks:        NOC Contact: noc@cylo.net
remarks:        Abuse Contact: abusebox@cylo.net
remarks:        
remarks:        ================================================
remarks:        Transit Providers
remarks:        ================================================
remarks:        CircleB - Default route transit
remarks:        
remarks:        Cogent - IPv4 transit
remarks:        
remarks:        ================================================
remarks:        Internet Exchanges
remarks:        ================================================
remarks:        AMS-IX - Route Server Peering
remarks:        
remarks:        Speed-IX - Route Server Peering
remarks:        
remarks:        GNM-IX - Route Server Peering
remarks:        
remarks:        INTERIX - Route Server Peering
remarks:        
remarks:        LSIX - Route Server Peering
remarks:        
remarks:        Frys-IX - Route Server Peering
remarks:        
remarks:        Piter-IX - Route Server Peering
remarks:        
remarks:        ================================================
remarks:        RPKI ROA
remarks:        ================================================
remarks:        79.140.195.0/24 AS209870 maxLength /32
remarks:        85.8.234.0/24 AS209870 maxLength /32
remarks:        2a0e:5140::/29 AS209870 maxLength /48
remarks:        
admin-c:        NA9215-RIPE
tech-c:         NA9215-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         lir-uk-cyloltd-1-MNT
created:        2025-04-24T12:05:12Z
last-modified:  2026-08-28T13:37:59Z
source:         RIPE
% 18 routing policy lines (import/export) not shown