subnet.im

AS47377Orange Belgium SA

BelgiumRegistryRIPE NCCTypeEyeball

As of 26th September 2026, AS47377 (Orange Belgium SA), an access network registered in Belgium with RIPE NCC, originates 86 IPv4 prefixes covering 1.4M addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 380th-largest of the 79,516 networks we see originating IPv4, and the 3rd-largest of 271 in Belgium. It is seen behind 5 upstream networks, most often AS3356 (Lumen (Level 3)) and AS5511 (Orange S.A.), and in front of 9 downstream networks. 99% 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, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

86

IPv6 prefixes

3

IPv4 addresses

1.4M

IPv6 /64s

12.9B

Upstream graph

The networks AS47377 is seen behind, one and two hops out, drawn from real AS paths.

AS47377Toward the internet core
Upstream graph for AS47377: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS47377Orange Belgium SAThis networkAS3356Lumen (Level 3)AS5511Orange S.A.AS6939Hurricane Electri…AS9002RETN LimitedAS47957Worldline IGSA SAAS3549Lumen (fka. Globa…AS1299Arelion (fka. Tel…AS57866Fusix Networks B.…AS2914NTT America, Inc.AS20130Depaul UniversityAS6453TATA Communicatio…AS51907Kanton Zug

Networks observed one and two hops upstream of AS47377 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

37

adjacent networks

Upstreams
514%
Peers
2362%
Downstreams
924%

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

Upstreams of AS47377
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer5,149106
AS5511Orange S.A.FRPeer1,83381
AS9002RETN LimitedGBPeer82716
AS6939Hurricane Electric LLCUSPeer3913
AS47957Worldline IGSA SAFRPeer31

Prefixes

All 89

The largest blocks AS47377 originates, widest first.

Largest prefixes originated by AS47377
PrefixAddressesVisibility
94.104.0.0/13524k80/81
91.86.0.0/15131k81/81
178.50.0.0/15131k81/81
91.86.0.0/1665.5k81/81
178.51.0.0/1665.5k81/81
62.88.0.0/1732.8k81/81
94.106.128.0/1732.8k81/81
94.107.0.0/1732.8k81/81
178.51.0.0/1732.8k81/81
178.51.128.0/1732.8k80/81

Routing health

How AS47377'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

  • Valid98.9%88
  • Invalid0.0%0
  • No ROA1.1%1

Propagation

  • Globally propagated90% of full-feed peers or more100.0%89
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 86 prefixes

IPv6 — 3 prefixes

  • /324.3B × /64100.0%3

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS47377 started or stopped in this period.

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