subnet.im

AS37196Expresso Senegal SA

SenegalRegistryAFRINICTypeEyeball

As of 23rd October 2026, AS37196 (Expresso Senegal SA), an access network registered in Senegal with AFRINIC, originates 26 IPv4 prefixes covering 30.7k addresses. By IPv4 address space that makes it the 5,642nd-largest of the 79,652 networks we see originating IPv4, and the 2nd-largest of 13 in Senegal. It is seen behind 4 upstream networks, most often AS204523 (Expresso Telecom Group Ltd) and AS37613 (DOLPHIN TELECOMMUNICATION LIMITED), and in front of 1 downstream network. 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

26

IPv6 prefixes

0

IPv4 addresses

30.7k

IPv6 /64s

0

Upstream graph

The networks AS37196 is seen behind, one and two hops out, drawn from real AS paths.

AS37196Toward the internet core
Upstream graph for AS37196: 10 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS37196Expresso Senegal …This networkAS8657MEO International…AS37613DOLPHIN TELECOMMU…AS60171AFR-IX TELECOM S.…AS204523Expresso Telecom …AS1299Arelion (fka. Tel…AS6939Hurricane Electri…AS7713PT Telkom Indones…AS9002RETN LimitedAS174Cogent Communicat…AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS37196 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

10

adjacent networks

Upstreams
440%
Peers
550%
Downstreams
110%

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

Upstreams of AS37196
NetworkCountryRelationshipPathsVantage pts
AS204523Expresso Telecom Group LtdAEPeer75576
AS37613DOLPHIN TELECOMMUNICATION LIMITEDGHPeer69077
AS8657MEO International BackbonePTPeer50177
AS60171AFR-IX TELECOM S.A.ESPeer12370

Prefixes

All 26

The largest blocks AS37196 originates, widest first.

Largest prefixes originated by AS37196
PrefixAddressesVisibility
41.219.0.0/1816.4k77/77
41.219.32.0/198.2k76/77
41.219.0.0/2425676/77
41.219.11.0/2425677/77
41.219.12.0/2425676/77
41.219.13.0/2425677/77
41.219.14.0/2425677/77
41.219.15.0/2425677/77
41.219.16.0/2425677/77
41.219.17.0/2425677/77

Routing health

How AS37196'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%26

Propagation

  • Globally propagated90% of full-feed peers or more100.0%26
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 26 prefixes

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

  • Announced41.219.13.0/2422nd Oct 2026
  • Announced41.219.19.0/2422nd Oct 2026
  • Announced41.219.57.0/2422nd Oct 2026
  • Withdrawn41.219.13.0/2422nd Oct 2026
  • Withdrawn41.219.19.0/2422nd Oct 2026
  • Withdrawn41.219.57.0/2422nd Oct 2026
  • Announced41.219.31.0/2415th Oct 2026
  • Withdrawn41.219.31.0/2413th Oct 2026

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