subnet.im

AS16019Vodafone Czech Republic a.s.

CzechiaRegistryRIPE NCCTypeEyeball

As of 26th September 2026, AS16019 (Vodafone Czech Republic a.s.), an access network registered in Czechia with RIPE NCC, originates 90 IPv4 prefixes covering 2.3M addresses and 17 IPv6 prefixes. By IPv4 address space that makes it the 248th-largest of the 79,516 networks we see originating IPv4, and the 2nd-largest of 574 in Czechia. It is seen behind 9 upstream networks, most often AS1273 (Vodafone Group PLC) and AS6939 (Hurricane Electric LLC), and in front of 92 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 55% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

90

IPv6 prefixes

17

IPv4 addresses

2.3M

IPv6 /64s

399B

Upstream graph

The networks AS16019 is seen behind, one and two hops out, drawn from real AS paths.

AS16019Toward the internet core
Upstream graph for AS16019: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS16019Vodafone Czech Re…This networkAS1273Vodafone Group PLCAS6939Hurricane Electri…AS8220COLTAS24482SG.GSAS32590Valve CorporationAS6667Elisa OyjAS41811CONVERGENCE (GROU…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS3356Lumen (Level 3)AS15576NTS workspace AGAS38623Metfone (Viettel …

Networks observed one and two hops upstream of AS16019 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

219

adjacent networks

Upstreams
94%
Peers
11854%
Downstreams
9242%

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

Upstreams of AS16019
NetworkCountryRelationshipPathsVantage pts
AS1273Vodafone Group PLCEUPeer24,033125
AS6939Hurricane Electric LLCUSPeer2,85634
AS8220COLTGBPeer4393
AS24482SG.GSSGPeer4053
AS32590Valve CorporationUSPeer3262
AS33891Core-Backbone GmbHDEPeer2933
AS8218Zayo EuropeFRPeer612
AS6461Zayo BandwidthUSPeer478
AS2852CESNET z.s.p.o.CZPeer1010

Prefixes

All 107

The largest blocks AS16019 originates, widest first.

Largest prefixes originated by AS16019
PrefixAddressesVisibility
78.44.0.0/15131k80/81
89.102.0.0/15131k80/81
89.176.0.0/15131k80/81
94.112.0.0/15131k80/81
31.30.0.0/1665.5k80/81
46.135.0.0/1665.5k81/81
77.48.0.0/1665.5k80/81
78.44.0.0/1665.5k17/81
78.45.0.0/1665.5k17/81
78.102.0.0/1665.5k81/81

Routing health

How AS16019'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%107
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more55.1%59
  • Partially propagated40% to 90%3.7%4
  • Seen by few peersUnder 40%41.1%44

Prefix sizes

IPv4 — 90 prefixes

IPv6 — 17 prefixes

  • /2868.7B × /645.9%1
  • /2934.4B × /6452.9%9
  • /324.3B × /6423.5%4
  • /332.1B × /6411.8%2
  • /4865.5k × /645.9%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS16019 started or stopped in this period.

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