ASN AS51699 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS51699?

AS51699 is listed under NETZFABRIK UG haftungsbeschraenkt.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS51699 NETZFABRIK UG haftungsbeschraenkt

NETZFABRIK UG haftungsbeschraenkt netzfabrik.com

DE 5 Routes

AS Data

AS51699

AS51699 – NETZFABRIK UG haftungsbeschraenkt

AS Number	51699
AS Name	ASNETZFABRIK
Organization	NETZFABRIK UG haftungsbeschraenkt (org-na793-ripe)
Country	DE
Website	netzfabrik.com
Number of IPv4 Routes	2
Number of IPv6 Routes	3
ASN type	ISP
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2016-06-27

ASN Intelligence API for production workflows

Use ASN data for AS51699 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
5.1.65.0/24	AS51699	NETZFABRIK UG haftungsbeschraenkt	NETZFABRIK UG haftungsbeschraenkt	256
2a0f:b80:4::/46	AS51699	NETZFABRIK UG haftungsbeschraenkt	NETZFABRIK UG haftungsbeschraenkt	~5×10²⁴
2a05:4741:6::/48	AS51699	NETZFABRIK UG haftungsbeschraenkt	NETZFABRIK UG haftungsbeschraenkt	~1×10²⁴
5.1.64.0/24	AS51699	NETZFABRIK UG haftungsbeschraenkt	NETZFABRIK UG haftungsbeschraenkt	256
2a07:6fc0:5::/48	AS51699	NETZFABRIK UG haftungsbeschraenkt	NETZFABRIK UG haftungsbeschraenkt	~1×10²⁴

Raw Whois Response

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to 'AS51357 - AS51817'

as-block:       AS51357 - AS51817
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2025-02-13T13:57:44Z
last-modified:  2025-02-13T13:57:44Z
source:         RIPE

% Information related to 'AS51699'

% Abuse contact for 'AS51699' is 'abuse@netzfabrik.com'

aut-num:        AS51699
as-name:        ASNETZFABRIK
descr:          NETZFABRIK UG (haftungsbeschraenkt)
remarks:
remarks:        NETZFABRIK Global Backbone
remarks:        https://netzfabrik.com/
remarks:
remarks:        Please find our peering details at
remarks:        https://as51699.peeringdb.com/
remarks:
remarks:        We have an open peering policy and would like to peer with
remarks:        you. Please send requests to peering@netzfabrik.com.
remarks:
remarks:        Upstreams
remarks:        ----------------------------------------------------------
remarks:
remarks:        +++ GHOSTnet GmbH
mp-import:      afi ipv4.unicast from AS12586 accept ANY
mp-export:      afi ipv4.unicast to AS12586 announce AS-NETZFABRIK
mp-import:      afi ipv6.unicast from AS12586 accept ANY
mp-export:      afi ipv6.unicast to AS12586 announce AS-NETZFABRIK
remarks:
remarks:        +++ meerfarbig GmbH & Co. KG
mp-import:      afi ipv4.unicast from AS34549 accept ANY
mp-export:      afi ipv4.unicast to AS34549 announce AS-NETZFABRIK
mp-import:      afi ipv6.unicast from AS34549 accept ANY
mp-export:      afi ipv6.unicast to AS34549 announce AS-NETZFABRIK
remarks:
remarks:        +++ Hurricane Electric LLC
mp-import:      afi ipv6.unicast from AS6939 accept ANY
mp-export:      afi ipv6.unicast to AS6939 announce AS-NETZFABRIK
remarks:
remarks:
remarks:        KleyReX Frankfurt Peers
remarks:        ----------------------------------------------------------
remarks:
remarks:        +++ KleyReX Routeserver 1
mp-import:      afi ipv4.unicast from AS31142 accept AS-KLEYREX-RS1
mp-export:      afi ipv4.unicast to AS31142 announce AS-NETZFABRIK
mp-import:      afi ipv6.unicast from AS31142 accept AS-KLEYREX-RS1
mp-export:      afi ipv6.unicast to AS31142 announce AS-NETZFABRIK
remarks:
remarks:        +++ KleyReX Routeserver 2
mp-import:      afi ipv4.unicast from AS31142 accept AS-KLEYREX-RS2
mp-export:      afi ipv4.unicast to AS31142 announce AS-NETZFABRIK
mp-import:      afi ipv6.unicast from AS31142 accept AS-KLEYREX-RS2
mp-export:      afi ipv6.unicast to AS31142 announce AS-NETZFABRIK
remarks:
remarks:        +++ Giuliano Schindler
mp-import:      afi ipv4.unicast from AS203155 accept AS203155
mp-export:      afi ipv4.unicast to AS203155 announce ANY
mp-import:      afi ipv6.unicast from AS203155 accept AS203155
mp-export:      afi ipv6.unicast to AS203155 announce ANY
remarks:
remarks:        +++ Got-root Networks
mp-import:      afi ipv4.unicast from AS135164 accept AS-GOTROOT
mp-export:      afi ipv4.unicast to AS135164 announce AS-NETZFABRIK
mp-import:      afi ipv6.unicast from AS135164 accept AS-GOTROOT
mp-export:      afi ipv6.unicast to AS135164 announce AS-NETZFABRIK
remarks:
remarks:        +++ Patrick Velder
mp-import:      afi ipv4.unicast from AS62078 accept AS-VELDER
mp-export:      afi ipv4.unicast to AS62078 announce AS-NETZFABRIK
mp-import:      afi ipv6.unicast from AS62078 accept AS-VELDER
mp-export:      afi ipv6.unicast to AS62078 announce AS-NETZFABRIK
remarks:
remarks:        +++ Marvin Huebel
mp-import:      afi ipv4.unicast from AS204254 accept AS-HUEBEL
mp-export:      afi ipv4.unicast to AS204254 announce AS-NETZFABRIK
mp-import:      afi ipv6.unicast from AS204254 accept AS-HUEBEL
mp-export:      afi ipv6.unicast to AS204254 announce AS-NETZFABRIK
remarks:
remarks:        +++ M&M Networks
mp-import:      afi ipv4.unicast from AS206499 accept AS-MMNETWORKS
mp-export:      afi ipv4.unicast to AS206499 announce AS-NETZFABRIK
mp-import:      afi ipv6.unicast from AS206499 accept AS-MMNETWORKS
mp-export:      afi ipv6.unicast to AS206499 announce AS-NETZFABRIK
remarks:
remarks:        +++ Cloudflare, Inc.
mp-import:      afi ipv4.unicast from AS13335 accept AS13335
mp-export:      afi ipv4.unicast to AS13335 announce AS-NETZFABRIK
mp-import:      afi ipv6.unicast from AS13335 accept AS13335
mp-export:      afi ipv6.unicast to AS13335 announce AS-NETZFABRIK
remarks:
remarks:        +++ Smart Internet Solutions UG (haftungsbeschraenkt)
mp-import:      afi ipv4.unicast from AS202265 accept AS202265
mp-export:      afi ipv4.unicast to AS202265 announce AS-NETZFABRIK
mp-import:      afi ipv6.unicast from AS202265 accept AS202265
mp-export:      afi ipv6.unicast to AS202265 announce AS-NETZFABRIK
remarks:
remarks:        +++ Hurricane Electric LLC
mp-import:      afi ipv4.unicast from AS6939 accept ANY
mp-export:      afi ipv4.unicast to AS6939 announce AS-NETZFABRIK
remarks:
remarks:        BGP Communities
remarks:        ----------------------------------------------------------
remarks:
remarks:        tbd
remarks:
remarks:        ----------------------------------------------------------
remarks:
admin-c:        GSNF
tech-c:         GSNF
org:            ORG-NA793-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         sinavps-mnt
mnt-by:         NETZFABRIK
created:        2016-06-27T12:39:13Z
last-modified:  2021-09-01T20:38:21Z
source:         RIPE
sponsoring-org: ORG-MSN7-RIPE

organisation:   ORG-NA793-RIPE
org-name:       Giuliano Schindler
country:        DE
reg-nr:         Not Applicable
org-type:       OTHER
address:        Charlottenstr. 8
address:        51149 Koeln
address:        Germany
admin-c:        GSNF
tech-c:         GSNF
abuse-c:        NFK-RIPE
mnt-ref:        NETZFABRIK
mnt-ref:        MNT-VSERVER
mnt-by:         NETZFABRIK
created:        2016-02-28T19:14:14Z
last-modified:  2026-05-13T06:52:32Z
source:         RIPE # Filtered

person:         Giuliano Schindler
address:        NETZFABRIK UG (haftungsbeschraenkt)
address:        Charlottenstr. 8
address:        51149 Koeln
address:        Germany
phone:          +49 2203 5710500
nic-hdl:        GSNF
mnt-by:         NETZFABRIK
created:        2015-12-31T14:08:45Z
last-modified:  2018-07-05T06:40:36Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.123 (SHETLAND)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS51357 - AS51817",
    "description" : [ "RIPE NCC ASN block" ],
    "remarks" : [ "These AS Numbers are assigned to network operators in the RIPE NCC service region." ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT" ],
    "date_created" : "2025-02-13",
    "date_updated" : "2025-02-13",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS51699",
    "as_name" : "ASNETZFABRIK",
    "description" : [ "NETZFABRIK UG (haftungsbeschraenkt)" ],
    "status" : "ASSIGNED",
    "mp_import" : [ "afi ipv4.unicast from AS12586 accept ANY", "afi ipv6.unicast from AS12586 accept ANY", "afi ipv4.unicast from AS34549 accept ANY", "afi ipv6.unicast from AS34549 accept ANY", "afi ipv6.unicast from AS6939 accept ANY", "afi ipv4.unicast from AS31142 accept AS-KLEYREX-RS1", "afi ipv6.unicast from AS31142 accept AS-KLEYREX-RS1", "afi ipv4.unicast from AS31142 accept AS-KLEYREX-RS2", "afi ipv6.unicast from AS31142 accept AS-KLEYREX-RS2", "afi ipv4.unicast from AS203155 accept AS203155", "afi ipv6.unicast from AS203155 accept AS203155", "afi ipv4.unicast from AS135164 accept AS-GOTROOT", "afi ipv6.unicast from AS135164 accept AS-GOTROOT", "afi ipv4.unicast from AS62078 accept AS-VELDER", "afi ipv6.unicast from AS62078 accept AS-VELDER", "afi ipv4.unicast from AS204254 accept AS-HUEBEL", "afi ipv6.unicast from AS204254 accept AS-HUEBEL", "afi ipv4.unicast from AS206499 accept AS-MMNETWORKS", "afi ipv6.unicast from AS206499 accept AS-MMNETWORKS", "afi ipv4.unicast from AS13335 accept AS13335", "afi ipv6.unicast from AS13335 accept AS13335", "afi ipv4.unicast from AS202265 accept AS202265", "afi ipv6.unicast from AS202265 accept AS202265", "afi ipv4.unicast from AS6939 accept ANY" ],
    "mp_export" : [ "afi ipv4.unicast to AS12586 announce AS-NETZFABRIK", "afi ipv6.unicast to AS12586 announce AS-NETZFABRIK", "afi ipv4.unicast to AS34549 announce AS-NETZFABRIK", "afi ipv6.unicast to AS34549 announce AS-NETZFABRIK", "afi ipv6.unicast to AS6939 announce AS-NETZFABRIK", "afi ipv4.unicast to AS31142 announce AS-NETZFABRIK", "afi ipv6.unicast to AS31142 announce AS-NETZFABRIK", "afi ipv4.unicast to AS31142 announce AS-NETZFABRIK", "afi ipv6.unicast to AS31142 announce AS-NETZFABRIK", "afi ipv4.unicast to AS203155 announce ANY", "afi ipv6.unicast to AS203155 announce ANY", "afi ipv4.unicast to AS135164 announce AS-NETZFABRIK", "afi ipv6.unicast to AS135164 announce AS-NETZFABRIK", "afi ipv4.unicast to AS62078 announce AS-NETZFABRIK", "afi ipv6.unicast to AS62078 announce AS-NETZFABRIK", "afi ipv4.unicast to AS204254 announce AS-NETZFABRIK", "afi ipv6.unicast to AS204254 announce AS-NETZFABRIK", "afi ipv4.unicast to AS206499 announce AS-NETZFABRIK", "afi ipv6.unicast to AS206499 announce AS-NETZFABRIK", "afi ipv4.unicast to AS13335 announce AS-NETZFABRIK", "afi ipv6.unicast to AS13335 announce AS-NETZFABRIK", "afi ipv4.unicast to AS202265 announce AS-NETZFABRIK", "afi ipv6.unicast to AS202265 announce AS-NETZFABRIK", "afi ipv4.unicast to AS6939 announce AS-NETZFABRIK" ],
    "organization" : "ORG-NA793-RIPE",
    "sponsoring_organization" : "ORG-MSN7-RIPE",
    "admin_contacts" : [ "GSNF" ],
    "tech_contacts" : [ "GSNF" ],
    "remarks" : [ "NETZFABRIK Global Backbone", "https://netzfabrik.com/", "Please find our peering details at", "https://as51699.peeringdb.com/", "We have an open peering policy and would like to peer with", "you. Please send requests to peering@netzfabrik.com.", "Upstreams", "----------------------------------------------------------", "+++ GHOSTnet GmbH", "+++ meerfarbig GmbH & Co. KG", "+++ Hurricane Electric LLC", "KleyReX Frankfurt Peers", "----------------------------------------------------------", "+++ KleyReX Routeserver 1", "+++ KleyReX Routeserver 2", "+++ Giuliano Schindler", "+++ Got-root Networks", "+++ Patrick Velder", "+++ Marvin Huebel", "+++ M&M Networks", "+++ Cloudflare, Inc.", "+++ Smart Internet Solutions UG (haftungsbeschraenkt)", "+++ Hurricane Electric LLC", "BGP Communities", "----------------------------------------------------------", "tbd", "----------------------------------------------------------" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "sinavps-mnt", "NETZFABRIK" ],
    "date_created" : "2016-06-27",
    "date_updated" : "2021-09-01",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-NA793-RIPE",
    "name" : "Giuliano Schindler",
    "type" : "OTHER",
    "address" : [ "Charlottenstr. 8", "51149 Koeln", "Germany" ],
    "street" : "Charlottenstr.",
    "city" : "Koeln",
    "zip_code" : "51149",
    "country" : [ "DE" ],
    "admin_contacts" : [ "GSNF" ],
    "tech_contacts" : [ "GSNF" ],
    "abuse_contacts" : [ "NFK-RIPE" ],
    "mnt_ref" : [ "NETZFABRIK", "MNT-VSERVER" ],
    "mnt_by" : [ "NETZFABRIK" ],
    "date_created" : "2016-02-28",
    "date_updated" : "2026-05-13",
    "source" : "RIPE",
    "addressCountry" : "GERMANY"
  },
  "administrative_contacts" : [ {
    "handle" : "GSNF",
    "name" : "Giuliano Schindler",
    "address" : [ "NETZFABRIK UG (haftungsbeschraenkt)", "Charlottenstr. 8", "51149 Koeln", "Germany" ],
    "street" : "Charlottenstr.",
    "city" : "Koeln",
    "zip_code" : "51149",
    "country" : "GERMANY",
    "phone" : [ "+49 2203 5710500" ],
    "mnt_by" : [ "NETZFABRIK" ],
    "date_created" : "2015-12-31",
    "date_updated" : "2018-07-05",
    "source" : "RIPE",
    "addressCountry" : "GERMANY"
  } ],
  "technical_contacts" : [ {
    "handle" : "GSNF",
    "name" : "Giuliano Schindler",
    "address" : [ "NETZFABRIK UG (haftungsbeschraenkt)", "Charlottenstr. 8", "51149 Koeln", "Germany" ],
    "street" : "Charlottenstr.",
    "city" : "Koeln",
    "zip_code" : "51149",
    "country" : "GERMANY",
    "phone" : [ "+49 2203 5710500" ],
    "mnt_by" : [ "NETZFABRIK" ],
    "date_created" : "2015-12-31",
    "date_updated" : "2018-07-05",
    "source" : "RIPE",
    "addressCountry" : "GERMANY"
  } ]
}

Peers

AS Number	Description	Country
AS199081	Lancom Ltd.	GR
AS215828	Tizian Maxime Weigt trading as "TMW Global Networks"	DE
AS205794	JINZE YANG	CN
AS58057	Securebit AG	CH
AS25220	equada network GmbH	DE
AS213151	Christian Elsen	DE
AS57050	DreamServer	RO
AS6939	Hurricane Electric LLC	US
AS212123	Jori Vanneste	BE
AS60602	Inovare-Prim SRL	MD
AS44901	Belcloud LTD	BG
AS203155	Giuliano Schindler	DE
AS198150	SIACOM JSC	GE
AS31500	Global Network Management Inc	AG
AS34800	Securebit AG	CH
AS60144	3W Infra B.V.	NL
AS57344	Telehouse EAD	BG
AS9498	Bharti Airtel Ltd	IN
AS214757	Jakub Krsa	CZ
AS58299	Openfactory GmbH	CH
AS51185	MainStreaming SpA	IT
AS210667	Adam Goodenough	GB
AS7768	Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAYAR TEKNOLOJILERI	TR
AS206499	LOCIX LIMITED	GB
AS133504	PAOCLOUD CO., LTD.	TH
AS53062	GGNET TELECOMUNICACOES LTDA	BR
AS206735	Novelcomm LP	GR
AS14840	BR.Digital Telecom	BR
AS204254	Marvin Huebel	DE
AS12586	GHOSTnet GmbH	DE
AS32590	Valve Corporation	US
AS57463	NetIX Communications JSC	BG
AS12735	TurkNet Iletisim Hizmetleri A.S.	TR
AS8801	Rocket Fibre Ltd	GB
AS212483	LEVEL EIGHTY SIX COMMUNICATIONS LTD	GB
AS34549	meerfarbig GmbH & Co. KG	DE
AS24482	SG.GS	SG
AS135164	Kardinia International College	AU
AS202365	Omer GOLGELI	TR
AS12741	Netia SA	PL
AS25091	IP Max SA	CH
AS41666	Institute for Pyrotechnical Cleaning limited company	FI
AS51184	Fonira Telekom GmbH	AT
AS8298	IPng Networks GmbH	CH
AS44620	Netlen Internet Hizmetleri Ltd. Sti.	TR
AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD	GB
AS62078	Tobias Fiebig	DE
AS41666	Institute for Pyrotechnical Cleaning (limited company)	FI
AS52025	ParadoxNetworks Limited	GB
AS212635	Jurrian van Iersel	NL
AS24940	Hetzner Online GmbH	DE
AS212508	Lowhosting services of Davide Gennari	IT
AS39120	Convergenze S.p.A.	IT
AS210937	Xiufeng Guo	DE
AS6774	Belgacom International Carrier Services SA	BE
AS44901	belcloud	BG
AS48646	SDRmedia Verwaltungs GmbH	DE
AS202265	InterWebs Ltd.	BG
AS34872	Sarah Rossius trading as Servperso Systems	BE
AS13335	Cloudflare, Inc.	US

Upstreams

AS Number	Description	Country
AS39120	Convergenze S.p.A.	IT
AS212508	Lowhosting services of Davide Gennari	IT
AS205794	JINZE YANG	CN
AS14840	BR.Digital Telecom	BR
AS12586	GHOSTnet GmbH	DE
AS25091	IP Max SA	CH
AS6939	Hurricane Electric LLC	US
AS12735	TurkNet Iletisim Hizmetleri A.S.	TR
AS48646	SDRmedia Verwaltungs GmbH	DE
AS206499	LOCIX LIMITED	GB
AS34549	meerfarbig GmbH & Co. KG	DE
AS31500	Global Network Management Inc	AG

ASN Lookup Tool

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