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AS56745 Kalnet4u Ltd

United Kingdom KALNET4U RIPE 1 IPv4 prefix 1 IPv6 prefix
IPv4 addresses
2,048
IPv6 /48 networks
65,536
RPKI
0 valid2 no ROA
Peers and downstreams
17

Holder

AS name
KALNET4U
Description
t/a Tamar Telecommunications
Organisation
Kalnet4u Ltd
Registered in
Plymouth, United Kingdom
Abuse contact
noc@tamartelecommunications.co.uk
Assigned
2011-05-08
Registered
2011-05-09
Record last changed
2018-09-04 11:01 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths
AS6057 Administracion Nacional de Telecomunicaciones AS6057 · UY Administracion Nacion… AS14840 BR.Digital Telecom AS14840 · BR BR.Digital Telecom AS3356 Level 3 Parent, LLC AS3356 · US Level 3 Parent, LLC AS6461 Zayo Bandwidth AS6461 · US Zayo Bandwidth AS9002 RETN Limited AS9002 · GB RETN Limited AS5400 British Telecommunications Limited AS5400 · GB British Telecommunica… AS6939 Hurricane Electric LLC AS6939 · US Hurricane Electric LLC AS174 AS174 AS174 AS174 AS2856 British Telecommunications Limited AS2856 · GB British Telecommunica… AS56745 Kalnet4u Ltd AS56745 · GB Kalnet4u Ltd

Network health

Grade C · 60/100
fail Prefixes covered by valid ROAs
0 of 2 announced prefixes are RPKI valid, 2 have no ROA.		 0/25
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
noc@tamartelecommunications.co.uk 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 2018-09-04.		 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
2026-10-05 04:06 UTCRelationship changed AS8218 upstream to peer
2026-10-05 04:06 UTCRelationship changed AS39351 upstream to peer

WHOIS

aut-num:        AS56745
as-name:        KALNET4U
descr:          t/a Tamar Telecommunications
org:            ORG-KL86-RIPE
admin-c:        KC1403-RIPE
tech-c:         PC56745-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MNT-KALNET4U
created:        2011-05-09T08:33:04Z
last-modified:  2018-09-04T11:01:40Z
source:         RIPE
% 8 routing policy lines (import/export) not shown