What is ASN AS213959?

ASN AS213959 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS213959?

AS213959 is listed under ObSimRef Diensten B.V. trading as AltStack.

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.

AS213959 ObSimRef Diensten B.V. trading as AltStack

ASN Lookup Tool

ObSimRef Diensten B.V. trading as AltStack altstack.ai

NL 3 Routes

AS Data

AS213959

AS213959 – ObSimRef Diensten B.V. trading as AltStack

AS Number	213959
AS Name	AltStack
Organization	ObSimRef Diensten B.V. trading as AltStack (org-aa3486-ripe)
Country	NL
Website	altstack.ai
Number of IPv4 Routes	2
Number of IPv6 Routes	1
ASN type	BUSINESS
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2024-10-25

ASN Intelligence API for production workflows

Use ASN data for AS213959 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2001:67c:f54::/48	AS213959	ObSimRef Diensten B.V. trading as AltStack	ObSimRef Diensten B.V. trading as AltStack	~1×10²⁴
157.173.74.0/24	AS213959	ObSimRef Diensten B.V. trading as AltStack	ObSimRef Diensten B.V. trading as AltStack	256
185.104.131.0/24	AS213959	ObSimRef Diensten B.V. trading as AltStack	Speakup B.V.	256

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 'AS208885 - AS214345'

as-block:       AS208885 - AS214345
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:        2026-07-13T14:17:33Z
last-modified:  2026-07-13T14:17:33Z
source:         RIPE

% Information related to 'AS213959'

% Abuse contact for 'AS213959' is 'abuse@0x4f.eu'

aut-num:        AS213959
as-name:        AltStack
org:            ORG-AA3486-RIPE
import:         from AS202585 accept ANY
export:         to AS202585 announce AS213959
import:         from AS49627 accept ANY
export:         to AS49627 announce AS213959
sponsoring-org: ORG-SB378-RIPE
admin-c:        FO40-RIPE
tech-c:         FO40-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         OSRD-MNT
created:        2024-10-25T08:41:44Z
last-modified:  2026-09-03T07:51:19Z
source:         RIPE

organisation:   ORG-AA3486-RIPE
org-name:       ObSimRef Diensten B.V. trading as AltStack
country:        NL
reg-nr:         08217451
org-type:       OTHER
address:        Schipbeekstraat 10, 7523PS Enschede, Netherlands
abuse-c:        ACRO57958-RIPE
mnt-ref:        OSRD-MNT
created:        2026-08-25T13:34:36Z
last-modified:  2026-09-15T17:26:38Z
source:         RIPE # Filtered
mnt-by:         OSRD-MNT

person:         Florian Overkamp
address:        SpeakUp
address:        Institutenweg 6
address:        7521PK Enschede
address:        The Netherlands
phone:          +31(0)887732587
fax-no:         +31(0)887732588
nic-hdl:        FO40-RIPE
org:            ORG-SB378-RIPE
mnt-by:         SPEAKUP-MNT
created:        2009-07-08T06:33:43Z
last-modified:  2017-01-24T08:17:46Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.124.1 (BUSA)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS208885 - AS214345",
    "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" : "2026-07-13",
    "date_updated" : "2026-07-13",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS213959",
    "as_name" : "AltStack",
    "status" : "ASSIGNED",
    "import" : [ "from AS202585 accept ANY", "from AS49627 accept ANY" ],
    "export" : [ "to AS202585 announce AS213959", "to AS49627 announce AS213959" ],
    "organization" : "ORG-AA3486-RIPE",
    "sponsoring_organization" : "ORG-SB378-RIPE",
    "admin_contacts" : [ "FO40-RIPE" ],
    "tech_contacts" : [ "FO40-RIPE" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "OSRD-MNT" ],
    "date_created" : "2024-10-25",
    "date_updated" : "2026-09-03",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-AA3486-RIPE",
    "name" : "ObSimRef Diensten B.V. trading as AltStack",
    "type" : "OTHER",
    "address" : [ "Schipbeekstraat 10, 7523PS Enschede, Netherlands" ],
    "street" : "Schipbeekstraat",
    "city" : "Enschede",
    "zip_code" : "7523PS",
    "country" : [ "NL" ],
    "abuse_contacts" : [ "ACRO57958-RIPE" ],
    "mnt_ref" : [ "OSRD-MNT" ],
    "mnt_by" : [ "OSRD-MNT" ],
    "date_created" : "2026-08-25",
    "date_updated" : "2026-09-15",
    "source" : "RIPE",
    "addressCountry" : "NETHERLANDS"
  },
  "administrative_contacts" : [ {
    "handle" : "FO40-RIPE",
    "name" : "Florian Overkamp",
    "address" : [ "SpeakUp", "Institutenweg 6", "7521PK Enschede", "The Netherlands" ],
    "street" : "Institutenweg",
    "city" : "Enschede",
    "zip_code" : "7521PK",
    "country" : "THE NETHERLANDS",
    "phone" : [ "+31(0)887732587" ],
    "fax_no" : [ "+31(0)887732588" ],
    "organizations" : [ "ORG-SB378-RIPE" ],
    "mnt_by" : [ "SPEAKUP-MNT" ],
    "date_created" : "2009-07-08",
    "date_updated" : "2017-01-24",
    "source" : "RIPE",
    "addressCountry" : "THE NETHERLANDS"
  } ],
  "technical_contacts" : [ {
    "handle" : "FO40-RIPE",
    "name" : "Florian Overkamp",
    "address" : [ "SpeakUp", "Institutenweg 6", "7521PK Enschede", "The Netherlands" ],
    "street" : "Institutenweg",
    "city" : "Enschede",
    "zip_code" : "7521PK",
    "country" : "THE NETHERLANDS",
    "phone" : [ "+31(0)887732587" ],
    "fax_no" : [ "+31(0)887732588" ],
    "organizations" : [ "ORG-SB378-RIPE" ],
    "mnt_by" : [ "SPEAKUP-MNT" ],
    "date_created" : "2009-07-08",
    "date_updated" : "2017-01-24",
    "source" : "RIPE",
    "addressCountry" : "THE NETHERLANDS"
  } ]
}

Peers

AS Number	Description	Country
AS199081	Lancom Ltd.	GR
AS9498	Bharti Airtel Limited	IN
AS39351	31173 Services AB	SE
AS6204	ZET.NET IP Transit	RO
AS6939	Hurricane Electric LLC	US
AS9136	Wobcom GmbH	DE
AS198150	SIACOM JSC	GE
AS31500	Global Network Management Inc	AG
AS209267	Velorum B.V.	NL
AS267256	ONETIS TECNOLOGIA LTDA	BR
AS60144	3W Infra B.V.	NL
AS271253	LINK BRASIL TELECOMUNICACOES LTDA	BR
AS21263	TeleData GmbH	DE
AS49627	Speakup B.V.	NL
AS12859	BIT BV	NL
AS206735	Novelcomm LP	GR
AS37721	Virtual Technologies & Solutions	BF
AS42093	InterRacks B.V.	NL
AS14840	BR.Digital Telecom	BR
AS53062	ACESSOLINE TELECOMUNICACOES LTDA	BR
AS57463	NetIX Communications JSC	BG
AS12735	TurkNet Iletisim Hizmetleri A.S.	TR
AS39122	Blacknight Internet Solutions Limited	IE
AS60602	Inovare Prim SRL	MD
AS1031	PEER 1031 LLC	US
AS212483	LEVEL EIGHTY SIX COMMUNICATIONS LTD	GB
AS999	CORIX NETWORKS	US
AS211358	Patrizio Palumbo	IT
AS24482	SG.GS	SG
AS219339	Konrad Moson trading as OpenHades Cloud Services	PL
AS12741	Netia SA	PL
AS403001	Mirage Global Technologies LLC	US
AS34927	iFog GmbH	CH
AS25091	IP Max SA	CH
AS215760	DisPaisy Enterprises	IT
AS23106	AMERICAN TOWER DO BRASIL COMUNICAÇÃO MULTIMÍDIA LT	BR
AS209823	Enki Multimedia EURL	FR
AS212895	Johannes Ernst	DE
AS8298	IPng Networks GmbH	CH
AS28917	Fiord Networks, UAB	LT
AS206521	Technoberg Beheer B.V.	NL
AS61568	ALOO TELECOM FSF TECNOLOGIA SA	BR
AS34019	Hivane Association	FR
AS52025	ParadoxNetworks Limited	GB
AS212635	Jurrian van Iersel	NL
AS16276	OVH SAS	FR
AS210732	Alexandre Fernandes	FR
AS50629	LWLcom GmbH	DE
AS61049	Exascale Ltd	GB
AS1103	SURF B.V.	NL
AS24940	Hetzner Online GmbH	DE
AS205941	Lungu Stefan Gabriel	RO
AS39120	Convergenze S.p.A.	IT
AS215665	Marlon Alkan	DE
AS29075	IELO LIAZO SERVICES SAS	FR
AS60900	Adrian Trifonov trading as Ssmidge Technologies	CA
AS5405	Inter.link GmbH	DE
AS41051	FREETRANSIT Project	CH
AS199524	G Core Labs S.A.	LU
AS54148	Dynamic Quantum Networks	CA

Upstreams

AS Number	Description	Country
AS9498	Bharti Airtel Limited	IN
AS42093	InterRacks B.V.	NL
AS14840	BR.Digital Telecom	BR
AS39351	31173 Services AB	SE
AS25091	IP Max SA	CH
AS6204	ZET.NET IP Transit	RO
AS6939	Hurricane Electric LLC	US
AS212895	Johannes Ernst	DE
AS5405	Inter.link GmbH	DE
AS3214	xTom GmbH	DE
AS31500	Global Network Management Inc	AG
AS61568	ALOO TELECOM FSF TECNOLOGIA SA	BR
AS34019	Hivane Association	FR
AS202585	bgp.rodeo	NL
AS1031	PEER 1031 LLC	US
AS61049	Exascale Ltd	GB