AS209441 TEKFEN Tekfen Holding Anonim Sirketi

🇹🇷

Org handle: ORG-THAS1-RIPE

RIPE NCCallocated

Announced Prefixes (BGP)

4total

4 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)2,048

Announced (BGP)1,024

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)0

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

RIR

Status

allocated

Allocated

2019-02-11

Announced Prefixes

(BGP)4

Prefix	RPKI	IRR	Last Seen
5.253.220.0/24	Valid	-	2026-10-11
5.253.221.0/24	Valid	-	2026-10-11
5.253.222.0/24	Valid	-	2026-10-11
5.253.223.0/24	Valid	-	2026-10-11

(RIR)5

Prefix	Country	RIR	Status
5.253.220.0/22	🇹🇷 TR	RIPENCC	allocated
5.253.220.0/24	🇹🇷 TR	RIPE	assigned
5.253.221.0/24	🇹🇷 TR	RIPE	assigned
5.253.222.0/24	🇹🇷 TR	RIPE	assigned
5.253.223.0/24	🇹🇷 TR	RIPE	assigned

(seen in AS paths)

Networks AS209441 hands its own prefixes to: transit providers, or peers at an exchange.

ASPA

No ASPA

Abuse Contact

External Links

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS209441 should publish an ASPA object
IPv4 transfers in the RIPE NCC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/209441" | jq