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AS59711HZ Hosting Ltd

BulgariaRegistryRIPE NCC

As of 11th November 2026, AS59711 (HZ Hosting Ltd), a network registered in Bulgaria with RIPE NCC, originates 163 IPv4 prefixes covering 55k addresses and 18 IPv6 prefixes. By IPv4 address space that makes it the 4,313th-largest of the 80,747 networks we see originating IPv4, and the 14th-largest of 678 in Bulgaria. It is seen behind 35 upstream networks, most often AS3356 (Lumen (Level 3)) and AS174 (Cogent Communications, LLC), and in front of 2 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

163

IPv6 prefixes

18

IPv4 addresses

55k

IPv6 /64s

1.2M

Upstream graph

The networks AS59711 is seen behind, one and two hops out, drawn from real AS paths.

AS59711Toward the internet core
Upstream graph for AS59711: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS59711HZ Hosting LtdThis networkAS174Cogent Communicat…AS3356Lumen (Level 3)AS6681GIVEME CLOUD SP Z…AS9002RETN LimitedAS42708Glesys ABAS151326DCConnect Communi…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS1299Arelion (fka. Tel…AS35320Eurotranstelecom …AS6667Elisa OyjAS6939Hurricane Electri…

Networks observed one and two hops upstream of AS59711 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

198

adjacent networks

Upstreams
3518%
Peers
16181%
Downstreams
21%

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

Upstreams of AS59711
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer4,272117
AS174Cogent Communications, LLCUSPeer4,220103
AS6681GIVEME CLOUD SP Z O OPLPeer1,11058
AS9002RETN LimitedGBPeer84696
AS42708Glesys ABSEPeer808138
AS6762Telecom Italia Sparkle (Seabone)ITPeer44911
AS6939Hurricane Electric LLCUSPeer39716
AS208566GIVEME CLOUD SP Z O OPLPeer28039
AS25091IP-Max SACHPeer2485
AS5511Orange S.A.FRPeer21626

Prefixes

All 181

The largest blocks AS59711 originates, widest first.

Largest prefixes originated by AS59711
PrefixAddressesVisibility
205.188.80.0/221k76/76
205.188.224.0/221k76/76
212.180.16.0/221k75/76
212.180.32.0/221k75/76
212.180.60.0/221k75/76
213.232.116.0/221k75/76
5.149.248.0/2351275/76
5.149.254.0/2351275/76
62.192.96.0/2351276/76
66.167.70.0/2351276/76

Routing health

How AS59711'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%181
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%181
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 163 prefixes

IPv6 — 18 prefixes

  • /4865.5k × /64100.0%18

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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