AS13000 — LEON-AS

Network type: residential

AS13000 announces 27 IPv4 prefixes covering 50,432 addresses and 1 IPv6 prefixes.

About this network

A regional Polish provider carrying an absorbed competitor's netname alongside its own.

What it's used for

• A Polish internet provider serving the south of the country. 50,432 addresses across 34 IPv4 prefixes, 32 IPv6 prefixes, and 98 observed BGP neighbours.

Notable

• Most blocks share one netname, PL-LEON-20090506, reused across at least six separate prefixes.
• Two others are bare LEON, and one is ERTEL-NET.
• Eleven of eighteen sampled addresses answered, all in the form static-188-137-47-255.leon.com.pl.
• First observed in the routing archive in August 2000.

Interesting

• One dated netname covering six prefixes means a single allocation was carved up and each piece announced separately, rather than six allocations being made over time. The date is the day the block was assigned, so every piece of it carries the same one no matter when it was routed.
• ERTEL-NET is a different company's name on a block registered to this one. Regional providers grow by buying their neighbours, and the netname is the part of the acquisition nobody bothers to rewrite, so it stays as a marker of who held the space first.
• Every answering address is labelled static, which distinguishes fixed customer assignments from the dynamic pool. Networks that publish this are telling anyone who looks which addresses belong to a business line, and that distinction matters to mail filters far more than to users.
• Thirty-two IPv6 prefixes against 34 IPv4 ones is near parity, unusual for a provider this size and a sign the deployment was done properly rather than as a token announcement.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 62.182.224.0/21
• 87.101.64.0/20
• 87.239.192.0/22
• 87.239.196.0/23
• 87.239.198.0/24
• 89.200.224.0/21
• 91.195.134.0/23
• 91.195.158.0/23
• 91.195.190.0/24
• 91.200.24.0/22
• 91.207.64.0/23
• 91.208.247.0/24
• 91.214.24.0/22
• 185.191.246.0/24
• 188.137.0.0/18
• 188.137.64.0/19
• 188.137.96.0/20
• 188.137.112.0/22
• 188.137.116.0/23
• 188.137.119.0/24
• 188.137.120.0/21
• 193.34.112.0/23
• 193.34.114.0/24
• 193.93.92.0/22
• 193.150.36.0/23
• 195.3.200.0/22
• 195.66.73.0/24
• 2a02:c40::/32

Upstream networks

• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS15744 Silesian University of Technology, Computer Centre
• AS5617 Orange Polska Spolka Akcyjna
• AS24482 SG.GS
• AS24748 Atman Sp. z o.o.
• AS12552 GlobalConnect AB
• AS57463 NetIX Communications JSC
• AS5405 Inter.link GmbH
• AS33891 Core-Backbone GmbH
• AS34549 meerfarbig GmbH & Co. KG
• AS213241 TECHIT.BE SRL
• AS212024 Marc Schmitt
• AS48362 Stadtwerke Feldkirch
• AS201054 Stowarzyszenie e-Poludnie
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS50300 CustodianDC Limited
• AS48185 team.blue NV
• AS50673 Serverius Holding B.V.
• AS12859 BIT BV
• AS293 ESnet
• AS37100 SEACOM Limited
• AS37721 Virtual Technologies & Solutions
• AS1836 green.ch AG
• AS20766 Association "Gitoyen"

Downstream networks

• AS49001 Leon Sp. z o.o.
• AS12642 Leon Sp. z o.o.
• AS202037 ING Hubs B.V.
• AS39412 Leon Sp. z o.o.
• AS47129 Leon Sp. z o.o.
• AS198469 Marek Wajdzik
• AS39255 Polska Grupa Gornicza S.A.

Adjacent networks

• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS15744 Silesian University of Technology, Computer Centre
• AS49001 Leon Sp. z o.o.
• AS12642 Leon Sp. z o.o.
• AS5617 Orange Polska Spolka Akcyjna
• AS202037 ING Hubs B.V.
• AS39412 Leon Sp. z o.o.
• AS47129 Leon Sp. z o.o.
• AS24482 SG.GS
• AS57463 NetIX Communications JSC
• AS198469 Marek Wajdzik
• AS12552 GlobalConnect AB
• AS24748 Atman Sp. z o.o.
• AS3257 GTT Communications Inc.
• AS39255 Polska Grupa Gornicza S.A.
• AS33891 Core-Backbone GmbH
• AS5405 Inter.link GmbH
• AS34549 meerfarbig GmbH & Co. KG
• AS48362 Stadtwerke Feldkirch
• AS213241 TECHIT.BE SRL
• AS212024 Marc Schmitt
• AS201054 Stowarzyszenie e-Poludnie
• AS48185 team.blue NV
• AS50673 Serverius Holding B.V.

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• AMS-IX Amsterdam — Amsterdam, Netherlands
• TPIX - Internet Exchange — Warsaw, Poland
• Thinx IX — Warsaw, Poland