subnet.im

AS21473PFALZKOM GmbH

GermanyRegistryRIPE NCCTypeCarrier

As of 26th September 2026, AS21473 (PFALZKOM GmbH), a transit carrier registered in Germany with RIPE NCC, originates 36 IPv4 prefixes covering 48.6k addresses and 11 IPv6 prefixes. By IPv4 address space that makes it the 4,529th-largest of the 79,516 networks we see originating IPv4, and the 146th-largest of 2,288 in Germany. It is seen behind 38 upstream networks, most often AS5405 (Inter.link GmbH) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 32 downstream networks. 43% of its announcements have a valid RPKI ROA; 4 are RPKI-invalid. 91% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

36

IPv6 prefixes

11

IPv4 addresses

48.6k

IPv6 /64s

94.5B

Upstream graph

The networks AS21473 is seen behind, one and two hops out, drawn from real AS paths.

AS21473Toward the internet core
Upstream graph for AS21473: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS21473PFALZKOM GmbHThis networkAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3320Deutsche Telekom …AS3356Lumen (Level 3)AS5405Inter.link GmbHAS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS49544i3D.net B.VAS37271Workonline Commun…AS3549Lumen (fka. Globa…AS3491PCCW Global (HK) …AS13237euNetworks GmbH

Networks observed one and two hops upstream of AS21473 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

265

adjacent networks

Upstreams
3814%
Peers
19574%
Downstreams
3212%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS21473
NetworkCountryRelationshipPathsVantage pts
AS5405Inter.link GmbHDEPeer1,53944
AS1299Arelion (fka. Telia Carrier)SEPeer1,01648
AS3356Lumen (Level 3)USPeer71226
AS3320Deutsche Telekom AGDEPeer48118
AS2914NTT America, Inc.USPeer45722
AS13030Init7 (Switzerland) Ltd.CHPeer2024
AS6939Hurricane Electric LLCUSPeer1846
AS7713PT Telkom Indonesia TbkIDPeer1763
AS38880Micron21 Datacentre Pty LtdAUPeer1202
AS39122Blacknight Internet Solutions LimitedIEPeer1182

Prefixes

All 47

The largest blocks AS21473 originates, widest first.

Largest prefixes originated by AS21473
PrefixAddressesVisibility
212.65.0.0/198.2k81/81
213.183.64.0/198.2k81/81
213.206.160.0/198.2k81/81
193.16.128.0/204.1k81/81
77.72.216.0/212k81/81
93.190.248.0/212k81/81
109.232.128.0/212k80/81
109.233.144.0/212k81/81
77.72.216.0/221k81/81
94.176.168.0/221k81/81

Routing health

How AS21473'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

  • Valid42.6%20
  • Invalid8.5%4
  • No ROA48.9%23

Propagation

  • Globally propagated90% of full-feed peers or more91.5%43
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%8.5%4

Prefix sizes

IPv4 — 36 prefixes

IPv6 — 11 prefixes

  • /2934.4B × /6418.2%2
  • /324.3B × /6445.5%5
  • /332.1B × /6418.2%2
  • /4865.5k × /6418.2%2

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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