subnet.im

AS201550Syrian Telecommunication Private Closed Joint Stock Company

SyriaRegistryRIPE NCC

As of 11th November 2026, AS201550 (Syrian Telecommunication Private Closed…), a network registered in Syria with RIPE NCC, originates 49 IPv4 prefixes covering 146k addresses. By IPv4 address space that makes it the 1,728th-largest of the 80,763 networks we see originating IPv4, and the 3rd-largest of 10 in Syria. It is seen behind 2 upstream networks, most often AS29386 (Syrian Telecommunication Private Closed…) and AS29256 (Syrian Telecommunication Private Closed…). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 98% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

49

IPv6 prefixes

0

IPv4 addresses

146k

IPv6 /64s

0

Upstream graph

The networks AS201550 is seen behind, one and two hops out, drawn from real AS paths.

AS201550Toward the internet core
Upstream graph for AS201550: 4 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS201550Syrian Telecommun…This networkAS29256Syrian Telecommun…AS29386Syrian Telecommun…AS6774BICS (Belgacom)AS6866Cyprus Telecommun…

Networks observed one and two hops upstream of AS201550 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS201550
NetworkCountryRelationshipPathsVantage pts
AS29386Syrian Telecommunication Private Closed Joint Stock CompanySYPeer3,61977
AS29256Syrian Telecommunication Private Closed Joint Stock CompanySYPeer7777

Prefixes

All 49

The largest blocks AS201550 originates, widest first.

Largest prefixes originated by AS201550
PrefixAddressesVisibility
5.0.192.0/198.2k76/77
5.155.192.0/198.2k29/77
31.9.128.0/198.2k76/77
31.9.192.0/198.2k76/77
94.47.128.0/198.2k77/77
94.47.160.0/198.2k77/77
94.47.192.0/198.2k77/77
94.47.224.0/198.2k77/77
5.0.240.0/204.1k76/77
5.155.240.0/204.1k76/77

Routing health

How AS201550'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%49
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more98.0%48
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%2.0%1

Prefix sizes

IPv4 — 49 prefixes

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.