Organization
Tekfen Holding Anonim Sirketi
TEKFEN
Registered
Feb 11, 2019
7 years ago
IPv4 Prefixes
4
1,024 addresses
IPv6 Prefixes
0
BGP Neighbours
2
2 upstream/peer · 0 downstream
Registration
AS Number AS209441 AS Name TEKFEN Organization Tekfen Holding Anonim Sirketi Organization ID ORG-THAS1-RIPE Address Kultur Mh. Tekfen Sitesi Budak Sk. A Blok No:7 Besiktas, 34340, Istanbul, TURKEY Country Türkiye (TR) Registry RIPE NCC Allocated Feb 11, 2019 Record Created Feb 11, 2019 Last Updated Feb 11, 2019 Status
active
WHOIS Server whois.ripe.net AS Description TEKFEN - Tekfen Holding Anonim Sirketi, TR Abuse Email [email protected] IPv4 Prefixes
4 prefixes · 1,024 addresses Routing data as of 2026-10-08 16:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 5.253.220.0/24 | 5.253.220.0 – 5.253.220.255 | 256 |
| 5.253.221.0/24 | 5.253.221.0 – 5.253.221.255 | 256 |
| 5.253.222.0/24 | 5.253.222.0 – 5.253.222.255 | 256 |
| 5.253.223.0/24 | 5.253.223.0 – 5.253.223.255 | 256 |
IPv6 Prefixes
This AS does not currently announce any IPv6 prefixes.
BGP Neighbours
2 unique neighbours · 2 upstream/peer · 0 downstream. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries. Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers. Upstream & peer side (2)
Raw RDAP Response
{
"handle": "AS209441",
"startAutnum": 209441,
"endAutnum": 209441,
"name": "TEKFEN",
"status": [
"active"
],
"entities": [
{
"handle": "BK5061-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"administrative",
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/209441",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/BK5061-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "mnt-tr-tekfen1-1",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/209441",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/mnt-tr-tekfen1-1"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "ORG-THAS1-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Tekfen Holding Anonim Sirketi"
],
[
"kind",
{},
"text",
"org"
],
[
"adr",
{
"label": "Kultur Mh. Tekfen Sitesi Budak Sk. A Blok No:7 Besiktas\n34340\nIstanbul\nTURKEY"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+905380984699"
],
[
"tel",
{
"type": "voice"
},
"text",
"+905380984698"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/209441",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/ORG-THAS1-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "RIPE-NCC-END-MNT",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/209441",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/RIPE-NCC-END-MNT"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "AR50723-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Abuse-C Role"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Kultur Mh. Tekfen Sitesi Budak Sk. A Blok No:7 Besiktas\n34340\nIstanbul\nTURKEY"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{
"type": "abuse"
},
"text",
"[email protected]"
]
]
],
"roles": [
"abuse"
],
"entities": [
{
"handle": "mnt-tr-tekfen1-1",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/209441",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/mnt-tr-tekfen1-1"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
}
],
"objectClassName": "entity"
}
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/209441",
"rel": "rdap-up",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS209441",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/209441",
"rel": "rdap-up rdap-active",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS209441?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/209441",
"rel": "rdap-down",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-down/AS209441",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/209441",
"rel": "rdap-top",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS209441",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/209441",
"rel": "rdap-top rdap-active",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS209441?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/209441",
"rel": "rdap-bottom",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-bottom/AS209441",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/209441",
"rel": "self",
"href": "https://rdap.db.ripe.net/autnum/209441",
"type": "application/rdap+json"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2019-02-11T13:14:09Z"
},
{
"eventAction": "last changed",
"eventDate": "2019-02-11T13:14:09Z"
}
],
"rdapConformance": [
"nro_rdap_profile_asn_flat_0",
"rirSearch1",
"autnums",
"cidr0",
"rdap_level_0",
"nro_rdap_profile_0",
"redacted"
],
"notices": [
{
"title": "Filtered",
"description": [
"This output has been filtered."
]
},
{
"title": "Whois Inaccuracy Reporting",
"description": [
"If you see inaccuracies in the results, please visit:"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/209441",
"rel": "inaccuracy-report",
"href": "https://www.ripe.net/contact-form?topic=ripe_dbm&show_form=true",
"type": "text/html"
}
]
},
{
"title": "Source",
"description": [
"Objects returned came from source",
"RIPE"
]
},
{
"title": "Terms and Conditions",
"description": [
"This is the RIPE Database query service. The objects are in RDAP format."
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/209441",
"rel": "terms-of-service",
"href": "http://www.ripe.net/db/support/db-terms-conditions.pdf",
"type": "application/pdf"
}
]
}
],
"port43": "whois.ripe.net",
"objectClassName": "autnum",
"redacted": [
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='ORG-THAS1-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='AR50723-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
}
]
} Contact details of private individuals are redacted.