subnet.im

AS42656Allegro sp. z o.o.

PolandRegistryRIPE NCC

As of 11th November 2026, AS42656 (Allegro sp. z o.o.), a network registered in Poland with RIPE NCC, originates 21 IPv4 prefixes covering 9.7k addresses and 6 IPv6 prefixes. By IPv4 address space that makes it the 10,854th-largest of the 80,733 networks we see originating IPv4, and the 158th-largest of 2,109 in Poland. It is seen behind 12 upstream networks, most often AS3356 (Lumen (Level 3)) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 3 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 96% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

21

IPv6 prefixes

6

IPv4 addresses

9.7k

IPv6 /64s

51.5B

Upstream graph

The networks AS42656 is seen behind, one and two hops out, drawn from real AS paths.

AS42656Toward the internet core
Upstream graph for AS42656: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS42656Allegro sp. z o.o.This networkAS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS6939Hurricane Electri…AS24482SG.GSAS24940Hetzner Online Gm…AS13030Init7 (Switzerlan…AS16552Tiggee LLCAS3549Lumen (fka. Globa…AS20130Depaul UniversityAS132337AxclusiveAS2914NTT America, Inc.AS38623Metfone (Viettel …

Networks observed one and two hops upstream of AS42656 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

73

adjacent networks

Upstreams
1216%
Peers
5879%
Downstreams
34%

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

Upstreams of AS42656
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer1,532128
AS1299Arelion (fka. Telia Carrier)SEPeer43264
AS6939Hurricane Electric LLCUSPeer8521
AS24482SG.GSSGPeer323
AS49544i3D.net B.VNLPeer312
AS24940Hetzner Online GmbHDEPeer312
AS132337AxclusiveSGAdjacent302
AS32590Valve CorporationUSPeer302
AS262355VSX NetworksBRPeer71
AS201054Stowarzyszenie e-PoludniePLPeer61

Prefixes

All 27

The largest blocks AS42656 originates, widest first.

Largest prefixes originated by AS42656
PrefixAddressesVisibility
5.134.208.0/212k76/76
178.21.152.0/221k76/76
185.31.24.0/221k76/76
91.194.188.0/2351276/76
91.207.14.0/2351276/76
178.21.156.0/2351276/76
193.203.222.0/2351276/76
5.134.209.0/2425676/76
5.134.211.0/2425676/76
5.134.212.0/2425676/76

Routing health

How AS42656'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%27
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more96.3%26
  • Partially propagated40% to 90%3.7%1
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 21 prefixes

IPv6 — 6 prefixes

  • /2934.4B × /6416.7%1
  • /324.3B × /6466.7%4
  • /4865.5k × /6416.7%1

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.