AS13101 TNG Stadtnetz GmbH

Germany TNG-AS RIPE 34 IPv4 prefixes 4 IPv6 prefixes
IPv4 addresses
142,336
IPv6 /48 networks
1,572,865
RPKI
37 valid1 invalid0 no ROA
Peers and downstreams
174

Holder

AS name
TNG-AS
Description
TNG Stadtnetz GmbH Gerhard-Froehler-Strasse 12 24106 Kiel Germany phone: +49 431 7097-10
Organisation
TNG Stadtnetz GmbH
Registered in
Kiel, Germany
Abuse contact
abuse@tng.de
Assigned
2000-03-19
Registered
2002-09-20
Record last changed
2026-09-25 08:13 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 79/100
partly Prefixes covered by valid ROAs
37 of 38 announced prefixes are RPKI valid.
24/25
fail No RPKI invalid announcements
1 announced prefix is RPKI invalid and dropped by networks that validate.
0/10
pass Announces IPv6
4 IPv6 prefixes.
15/15
pass More than one upstream
22 upstreams seen in BGP.
10/10
pass Working abuse contact
abuse@tng.de 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
pass Registry record maintained
Last changed 2026-09-25.
5/5

Routing changes

Last 30 days
2026-10-04 11:38 UTCNeighbour gone AS215628 peer
2026-10-04 11:38 UTCNeighbour gone AS52320 peer
2026-10-04 11:38 UTCNeighbour gone AS33891 upstream
2026-10-04 11:38 UTCNeighbour gone AS31027 peer
2026-10-04 11:38 UTCNeighbour gone AS13194 upstream
2026-10-04 11:38 UTCNeighbour gone AS4601 upstream
2026-10-04 11:38 UTCNew neighbour AS8888 peer
2026-10-04 11:38 UTCNew neighbour AS264479 peer
2026-10-04 11:38 UTCRelationship changed AS9044 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS8758 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS8708 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS8455 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS8359 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS8220 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS7713 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS7195 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS6910 upstream to peer
2026-10-04 11:38 UTCNew neighbour AS6797 peer
2026-10-04 11:38 UTCRelationship changed AS6777 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS6696 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS6695 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS6663 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS62275 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS6204 upstream to peer
2026-10-04 11:38 UTCNew neighbour AS6057 peer
2026-10-04 11:38 UTCRelationship changed AS60171 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS58453 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS56655 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS50673 upstream to peer
2026-10-04 11:38 UTCNew neighbour AS49559 peer
2026-10-04 11:38 UTCRelationship changed AS49434 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS48646 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS48362 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS47147 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS4455 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS42708 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS4230 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS39686 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS39249 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS37468 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS37100 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS3462 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS34019 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS30844 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS29632 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS29208 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS29075 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS28716 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS264409 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS24961 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS22356 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS212508 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS212024 upstream to peer
2026-10-04 11:38 UTCNew neighbour AS209090 peer
2026-10-04 11:38 UTCRelationship changed AS209022 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS205103 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS20485 upstream to peer
2026-10-04 11:38 UTCNew neighbour AS20326 peer
2026-10-04 11:38 UTCRelationship changed AS1836 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS1764 upstream to peer
2026-10-04 11:38 UTCNew neighbour AS17557 peer
2026-10-04 11:38 UTCRelationship changed AS15958 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS15802 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS15576 upstream to peer
2026-10-04 11:38 UTCNew neighbour AS15412 peer
2026-10-04 11:38 UTCRelationship changed AS137409 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS12779 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS1267 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS12586 upstream to peer
2026-10-04 11:38 UTCNew neighbour AS12577 peer
2026-10-04 11:38 UTCRelationship changed AS1103 upstream to peer
2026-10-04 11:38 UTCRelationship changed AS1031 upstream to peer
2026-10-04 11:38 UTCPrefix gone 86.103.57.0/24
2026-10-04 11:38 UTCNew prefix 45.87.19.0/24

WHOIS

aut-num:        AS13101
as-name:        TNG-AS
descr:          TNG Stadtnetz GmbH
descr:          Gerhard-Froehler-Strasse 12
descr:          24106 Kiel
descr:          Germany
descr:          phone: +49 431 7097-10
descr:          fax: +49 431 7097-555
remarks:        -----------------------------------------------------
remarks:        --- UPSTREAMS ---
remarks:        -----------------------------------------------------
remarks:        -----------------------------------------------------
remarks:        --- PEERING AMS-IX ---
remarks:        -----------------------------------------------------
remarks:        -----------------------------------------------------
remarks:        --- PEERING DE-CIX ---
remarks:        -----------------------------------------------------
remarks:        -----------------------------------------------------
remarks:        --- PEERING NL-IX ---
remarks:        -----------------------------------------------------
remarks:        -----------------------------------------------------
remarks:        --- PEERING VIX ---
remarks:        -----------------------------------------------------
remarks:        -----------------------------------------------------
remarks:        --- PEERING WORK-IX ---
remarks:        -----------------------------------------------------
remarks:        -----------------------------------------------------
remarks:        --- PEERING KleyReX ---
remarks:        -----------------------------------------------------
remarks:        -----------------------------------------------------
remarks:        --- PEERING ECIX ---
remarks:        -----------------------------------------------------
remarks:        -----------------------------------------------------
remarks:        --- BGP Customer ---
remarks:        -----------------------------------------------------
remarks:        -----------------------------------------------------
remarks:        
remarks:        Peering presence at:
remarks:        
remarks:        DE-CIX Hamburg - Germany
remarks:        DE-CIX Frankfurt - Germany
remarks:        AMS-IX Amsterdam - The Netherlands
remarks:        NL-ix Amsterdam - The Netherlands
remarks:        KleyReX Frankfurt - Germany
remarks:        MegaIX Hamburg - Germany
remarks:        MegaIX Frankfurt - Germany
remarks:        
remarks:        Peering contact: peering@tng.de
remarks:        
remarks:        -----------------------------------------------------
remarks:        
remarks:        Applied Route Flap Damping Policy conformant
remarks:        to RIPE-229
remarks:        http://www.ripe.net/ripe/docs/routeflap-damping.html
remarks:        
remarks:        -----------------------------------------------------
remarks:        
remarks:        Inbound Communities
remarks:        Community Description
remarks:        -----------------------------------------------------
remarks:        13101:90 received from Upstream
remarks:        13101:110 received from Peering
remarks:        13101:120 received from Customer
remarks:        
remarks:        13101:1000 received from Peeringpoint DE-CIX Frankfurt
remarks:        13101:1010 received from Peeringpoint DE-CIX Hamburg
remarks:        13101:1030 received from Peeringpoint AMS-IX
remarks:        13101:1040 received from Peeringpoint NL-ix
remarks:        13101:1070 received from Peeringpoint KleyReX
remarks:        13101:1080 received from Peeringpoint MegaIX
remarks:        
remarks:        13101:2000 received in Kiel
remarks:        13101:2010 received in Hamburg
remarks:        13101:2020 received in Frankfurt
remarks:        13101:2030 received in Amsterdam
remarks:        13101:2040 received in Stuttgart
remarks:        
remarks:        13101:1500 received from Level 3 (AS3356)
remarks:        13101:1520 received from DTAG (AS3320)
remarks:        13101:1530 received from Cogent (AS174)
remarks:        13101:1540 received from Telia (AS1299)
remarks:        13101:1550 received from Core Backbone (AS33891)
remarks:        -----------------------------------------------------
remarks:        
remarks:        Outbound Communities
remarks:        Community Description
remarks:        -----------------------------------------------------
remarks:        Prepend communities to modify announcements:
remarks:        
remarks:        13101:500X announcements to DE-CIX Frankfurt peers
remarks:        13101:501X announcements to DE-CIX Hamburg peers
remarks:        13101:503X announcements to AMS-IX peers
remarks:        13101:504X announcements to NL-ix peers
remarks:        13101:507X announcements to KleyReX peers
remarks:        13101:508X announcements to MegaIX peers
remarks:        
remarks:        13101:550X announcements to Level 3 (AS3356)
remarks:        13101:552X announcements to DTAG (AS3320)
remarks:        13101:553X announcements to Cogent (AS174)
remarks:        13101:554X announcements to Telia (AS1299)
remarks:        13101:555X announcements to Core Backbone (AS33891)
remarks:        
remarks:        with X = 0,1,2,3 meaning
remarks:        X = 0 do not announce to peer
remarks:        X = 1 prepend "AS13101"
remarks:        X = 2 prepend "AS13101 AS13101"
remarks:        X = 3 prepend "AS13101 AS13101 AS13101"
remarks:        
remarks:        13101:6000 do not announce to Peers
remarks:        13101:6500 do not announce to Upstreams
remarks:        13101:666 blackhole community (only /32)
remarks:        
remarks:        -----------------------------------------------------
org:            ORG-TSG19-RIPE
admin-c:        SVEN1-RIPE
tech-c:         SVEN1-RIPE
tech-c:         TNG-RIPE
status:         ASSIGNED
mnt-by:         TNG-MNT
mnt-by:         RIPE-NCC-END-MNT
created:        2002-09-20T22:37:35Z
last-modified:  2026-09-25T08:13:35Z
source:         RIPE
% 1118 routing policy lines (import/export) not shown