AS21339 Contingency Networks Ltd 🇬🇧 GB

Announcing 7 prefixes, seen at the RIS collectors.

IPv4 prefixes
7
3,328 (13 × /24)
IPv6 prefixes
0
-
Upstreams
2
transit providers observed
Peers
6
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it

Registry and operator data

AS number
AS21339
Name
Contingency Networks Ltd
Organisation
Contingency Networks Ltd
Country
🇬🇧 GB
RIR
RIPENCC
Allocated
2012-09-06
Network type
Cable/DSL/ISP
Traffic levels
50-100Gbps
Scope
Regional
Peering policy
Open
PeeringDB
net/6289
Exchanges
2
Facilities
13

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

7 valid (100.0%) 0 invalid (0.0%) 0 no ROA (0.0%)

Whois

Fetched from whois.ripe.net

as-block:       AS21281 - AS21390
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:        2018-11-22T15:27:28Z
last-modified:  2018-11-22T15:27:28Z
source:         RIPE

aut-num:        AS21339
as-name:        ContingencyNetworks
org:            ORG-CNL16-RIPE
import:         from AS8468 accept ANY
export:         to AS8468 announce AS21339
import:         from AS43620 accept ANY
export:         to AS43620 announce AS21339
import:         from AS43531 accept ANY
export:         to AS43531 announce AS21339
import:         from AS60945 accept ANY
import:         from AS8550 accept ANY
import:         from AS3170 accept ANY
export:         to AS8550 announce AS21339
export:         to AS60945 announce AS21339
export:         to AS-ANY announce AS21339:AS-ALL
export:         to AS3170 announce AS21339
import:         from AS57155 accept ANY
export:         to AS57155 announce AS21339
import:         from AS49915 accept ANY
export:         to AS49915 announce AS21339
admin-c:        JR5606-RIPE
tech-c:         JR5606-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CNL-MAINT
created:        2012-09-06T12:07:32Z
last-modified:  2026-09-18T17:49:22Z
source:         RIPE

organisation:   ORG-CNL16-RIPE
org-name:       Contingency Networks Ltd
country:        GB
reg-nr:         06692252
org-type:       LIR
address:        71-75 Shelton Street, Covent Garden
address:        WC2H 9JQ
address:        London
address:        UNITED KINGDOM
phone:          +447974430402
abuse-c:        AC28397-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        CNL-MAINT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         cnl-maint
created:        2014-06-16T12:37:51Z
last-modified:  2026-05-13T07:43:21Z
source:         RIPE # Filtered

person:         Jon Richardson
address:        Unit F
address:        Tollgate Business Centre
address:        Tollgate Industrial Estate
address:        Stafford. ST16 3HS
phone:          +441785 878022
nic-hdl:        JR5606-RIPE
mnt-by:         cnl-maint
created:        2012-08-28T12:26:26Z
last-modified:  2013-06-28T09:34:20Z
source:         RIPE # Filtered