subnet.im

AS15994A1 Hrvatska d.o.o.

CroatiaRegistryRIPE NCCTypeEyeball

As of 10th November 2026, AS15994 (A1 Hrvatska d.o.o.), an access network registered in Croatia with RIPE NCC, originates 14 IPv4 prefixes covering 6.7k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 13,704th-largest of the 80,723 networks we see originating IPv4, and the 21st-largest of 147 in Croatia. It is seen behind 9 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS3356 (Lumen (Level 3)), and in front of 59 downstream networks. None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

14

IPv6 prefixes

1

IPv4 addresses

6.7k

IPv6 /64s

65.5k

Upstream graph

The networks AS15994 is seen behind, one and two hops out, drawn from real AS paths.

AS15994Toward the internet core
Upstream graph for AS15994: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS15994A1 Hrvatska d.o.o.This networkAS3257GTT Communication…AS3356Lumen (Level 3)AS6939Hurricane Electri…AS8447A1 Telekom Austri…AS12956Telxius (Telefoni…AS398465Rackdog LLCAS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS20130Depaul UniversityAS132337AxclusiveAS1299Arelion (fka. Tel…AS32590Valve Corporation

Networks observed one and two hops upstream of AS15994 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

139

adjacent networks

Upstreams
96%
Peers
7151%
Downstreams
5942%

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

Upstreams of AS15994
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer4,201113
AS3356Lumen (Level 3)USPeer2,23459
AS8447A1 Telekom Austria AGATPeer2,03362
AS12956Telxius (Telefonica Global)ESPeer39183
AS3257GTT Communications Inc.USPeer23832
AS174Cogent Communications, LLCUSPeer13028
AS35225Hrvatske cesteHRPeer1414
AS13046Hrvatski Telekom d.d.HRPeer88
AS34362Terrakom d.o.o.HRPeer11

Prefixes

The largest blocks AS15994 originates, widest first.

Largest prefixes originated by AS15994
PrefixAddressesVisibility
188.129.12.0/221k76/76
188.129.76.0/221k76/76
188.129.80.0/221k76/76
188.252.196.0/221k76/76
83.139.67.0/2425676/76
83.139.70.0/2425676/76
83.139.120.0/2425676/76
188.129.9.0/2425676/76
188.129.126.0/2425676/76
194.146.109.0/2425676/76

Routing health

How AS15994'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%15

Propagation

  • Globally propagated90% of full-feed peers or more100.0%15
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 14 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 11th Oct 2026.

No announcement by AS15994 started or stopped in this period.

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