AS209441 — TEKFEN Tekfen Holding Anonim Sirketi

AS209441 announces 1 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.

About this network

The AS handle TEKFEN is held by Tekfen Holding Anonim Sirketi.

What it's used for

• The address space carries corporate infrastructure, identified by the netname TR-TEKFEN1-20190211 and registrant Tekfen Holding Anonim Sirketi.
• The inventory consists of 1024 IPv4 addresses within a single /22 prefix (5.253.220.0/22) and 0 IPv6 prefixes.
• With only 2 observed neighbours, the low neighbour count relative to the address block indicates an internal corporate estate rather than a transit or access network.
• Traffic from this AS represents office workers and internal systems for a conglomerate operating in engineering, contracting, agriculture, and investment.

Notable

• The RDAP registrant Tekfen Holding Anonim Sirketi matches the AS holder and the netname owner.
• Tekfen Holding is a major Turkish conglomerate listed on the BIST 100, comprising 38 companies across engineering, agriculture, and investment sectors.
• The address inventory is a single contiguous /22 block, typical for a corporate site or headquarters network.

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

Announced prefixes

• 5.253.220.0/22

Upstream networks

• AS15924 Vodafone Net Iletisim Hizmetler AS

Adjacent networks

• AS15924 Vodafone Net Iletisim Hizmetler AS

Routing security

• RPKI: 4 valid, 0 invalid and 0 not-found announcements; 4 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 1 route objects.
• Listed in as-sets: AS-BTELEKOM.