subnet.im

AS5588T-Mobile Czech Republic a.s.

CzechiaRegistryRIPE NCCTypeEyeball

As of 27th September 2026, AS5588 (T-Mobile Czech Republic a.s.), an access network registered in Czechia with RIPE NCC, originates 4 IPv4 prefixes covering 74.2k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 2,930th-largest of the 79,523 networks we see originating IPv4, and the 16th-largest of 574 in Czechia. It is seen behind 1 upstream network, most often AS5483 (Magyar Telekom Plc.). 60% of its announcements have a valid RPKI ROA; 2 are RPKI-invalid. 60% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

4

IPv6 prefixes

1

IPv4 addresses

74.2k

IPv6 /64s

4.3B

Upstream graph

The networks AS5588 is seen behind, one and two hops out, drawn from real AS paths.

AS5588Toward the internet core
Upstream graph for AS5588: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS5588T-Mobile Czech Re…This networkAS5483Magyar Telekom Pl…AS3320Deutsche Telekom …AS49544i3D.net B.V

Networks observed one and two hops upstream of AS5588 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

3

adjacent networks

Upstreams
133%
Peers
267%
Downstreams
00%

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

Upstreams of AS5588
NetworkCountryRelationshipPathsVantage pts
AS5483Magyar Telekom Plc.HUPeer228145

Prefixes

The largest blocks AS5588 originates, widest first.

Largest prefixes originated by AS5588
PrefixAddressesVisibility
91.120.0.0/1665.5k81/81
194.149.0.0/198.2k81/81
195.56.13.0/242561/81
195.56.20.0/242561/81
2a00:10d0::/324.3B × /6464/64

Routing health

How AS5588'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

  • Valid60.0%3
  • Invalid40.0%2
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more60.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%40.0%2

Prefix sizes

IPv4 — 4 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn2a01:47c0::/3224th Sept 2026
  • Withdrawn193.203.56.0/2421st Sept 2026
  • Withdrawn193.203.57.0/2421st Sept 2026
  • Withdrawn193.203.58.0/2421st Sept 2026
  • Withdrawn193.32.181.0/2421st Sept 2026
  • Withdrawn193.32.182.0/2421st Sept 2026
  • Withdrawn194.11.132.0/2421st Sept 2026
  • Withdrawn194.11.194.0/2421st Sept 2026
  • Withdrawn194.11.216.0/2421st Sept 2026
  • Withdrawn194.11.220.0/2421st Sept 2026
  • Withdrawn194.88.214.0/2421st Sept 2026
  • Withdrawn194.88.215.0/2421st Sept 2026

0 announced and 22 withdrawn in all; the most recent are shown.

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