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AS13101TNG Stadtnetz GmbH

GermanyRegistryRIPE NCCTypeEyeball

As of 26th September 2026, AS13101 (TNG Stadtnetz GmbH), an access network registered in Germany with RIPE NCC, originates 34 IPv4 prefixes covering 142k addresses and 4 IPv6 prefixes. By IPv4 address space that makes it the 1,720th-largest of the 79,516 networks we see originating IPv4, and the 45th-largest of 2,288 in Germany. It is seen behind 44 upstream networks, most often AS3356 (Lumen (Level 3)) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 11 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 95% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

34

IPv6 prefixes

4

IPv4 addresses

142k

IPv6 /64s

103B

Upstream graph

The networks AS13101 is seen behind, one and two hops out, drawn from real AS paths.

AS13101Toward the internet core
Upstream graph for AS13101: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS13101TNG Stadtnetz GmbHThis networkAS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS5405Inter.link GmbHAS7713PT Telkom Indones…AS13030Init7 (Switzerlan…AS8888xTom Pty LtdAS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS3491PCCW Global (HK) …AS13237euNetworks GmbHAS35280F5 Networks SARLAS56662Marcin Gondek

Networks observed one and two hops upstream of AS13101 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

282

adjacent networks

Upstreams
4416%
Peers
22780%
Downstreams
114%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 44.

Upstreams of AS13101
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer1,23441
AS1299Arelion (fka. Telia Carrier)SEPeer1,21539
AS5405Inter.link GmbHDEPeer49228
AS13030Init7 (Switzerland) Ltd.CHPeer2735
AS7713PT Telkom Indonesia TbkIDPeer2653
AS6939Hurricane Electric LLCUSPeer24226
AS38880Micron21 Datacentre Pty LtdAUPeer2042
AS18106Viewqwest Pte LtdSGPeer1884
AS6667Elisa OyjFIPeer1544
AS14537Continent 8 LLCUSPeer1303

Prefixes

All 38

The largest blocks AS13101 originates, widest first.

Largest prefixes originated by AS13101
PrefixAddressesVisibility
86.103.0.0/1665.5k81/81
82.97.128.0/1816.4k81/81
62.93.0.0/198.2k81/81
213.158.96.0/198.2k81/81
213.178.64.0/198.2k81/81
217.70.192.0/204.1k81/81
46.22.152.0/212k81/81
81.91.104.0/212k81/81
89.28.176.0/212k81/81
202.71.144.0/212k81/81

Routing health

How AS13101's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%38
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more94.7%36
  • Partially propagated40% to 90%2.6%1
  • Seen by few peersUnder 40%2.6%1

Prefix sizes

IPv4 — 34 prefixes

IPv6 — 4 prefixes

  • /2934.4B × /6475.0%3
  • /4865.5k × /6425.0%1

Recent changes

Announcements that started or stopped since 27th Aug 2026.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.