subnet.im

AS6866Cyprus Telecommunications Authority

CyprusRegistryRIPE NCCTypeEyeball

As of 26th September 2026, AS6866 (Cyprus Telecommunications Authority), an access network registered in Cyprus with RIPE NCC, originates 142 IPv4 prefixes covering 1.2M addresses and 19 IPv6 prefixes. By IPv4 address space that makes it the 416th-largest of the 79,516 networks we see originating IPv4, and the 2nd-largest of 127 in Cyprus. It is seen behind 45 upstream networks, most often AS3491 (PCCW Global (HK) Ltd.) and AS3257 (GTT Communications Inc.), and in front of 33 downstream networks. 97% of its announcements have 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

142

IPv6 prefixes

19

IPv4 addresses

1.2M

IPv6 /64s

137B

Upstream graph

The networks AS6866 is seen behind, one and two hops out, drawn from real AS paths.

AS6866Toward the internet core
Upstream graph for AS6866: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS6866Cyprus Telecommun…This networkAS1299Arelion (fka. Tel…AS3257GTT Communication…AS3356Lumen (Level 3)AS3491PCCW Global (HK) …AS6762Telecom Italia Sp…AS6667Elisa OyjAS398465Rackdog LLCAS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…AS52075Wifirst S.A.S.

Networks observed one and two hops upstream of AS6866 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

259

adjacent networks

Upstreams
4517%
Peers
18170%
Downstreams
3313%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 45.

Upstreams of AS6866
NetworkCountryRelationshipPathsVantage pts
AS3491PCCW Global (HK) Ltd.HKPeer16,02281
AS3257GTT Communications Inc.USPeer7,50482
AS3356Lumen (Level 3)USPeer6,22837
AS6762Telecom Italia Sparkle (Seabone)ITPeer3,50657
AS1299Arelion (fka. Telia Carrier)SEPeer2,48088
AS6939Hurricane Electric LLCUSPeer1,18835
AS174Cogent Communications, LLCUSPeer80712
AS7713PT Telkom Indonesia TbkIDPeer5613
AS9002RETN LimitedGBPeer3627
AS34288Kantonsschule ZugCHPeer2473

Prefixes

All 161

The largest blocks AS6866 originates, widest first.

Largest prefixes originated by AS6866
PrefixAddressesVisibility
31.153.0.0/1665.5k81/81
37.149.0.0/1665.5k81/81
46.199.0.0/1665.5k81/81
62.228.0.0/1665.5k81/81
93.109.0.0/1665.5k81/81
213.7.0.0/1665.5k81/81
31.153.0.0/1732.8k81/81
46.198.0.0/1732.8k81/81
87.228.128.0/1732.8k81/81
213.7.0.0/1732.8k81/81

Routing health

How AS6866'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

  • Valid96.9%156
  • Invalid0.0%0
  • No ROA3.1%5

Propagation

  • Globally propagated90% of full-feed peers or more100.0%161
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 142 prefixes

IPv6 — 19 prefixes

  • /2934.4B × /645.3%1
  • /3017.2B × /6410.5%2
  • /318.6B × /6421.1%4
  • /324.3B × /6442.1%8
  • /4016.8M × /645.3%1
  • /418.4M × /6410.5%2
  • /4865.5k × /645.3%1

Recent changes

Announcements that started or stopped since 27th Aug 2026.

No announcement by AS6866 started or stopped in this period.

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