ASN AS50522 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS50522?

AS50522 is listed under Sewan Nederland B.V..

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?

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AS50522 Sewan Nederland B.V. | IPGeolocation.io

Sewan Nederland B.V. sewan.nl

NL 12 Routes

AS Data

AS50522

AS50522 – Sewan Nederland B.V.

AS Number	50522
AS Name	SEWAN-NL
Organization	Sewan Nederland B.V. (org-pb32-ripe)
Country	NL
Website	sewan.nl
Number of IPv4 Routes	11
Number of IPv6 Routes	1
ASN type	ISP
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2010-02-02

ASN Intelligence API for production workflows

Use ASN data for AS50522 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2a03:be00::/32	AS50522	Sewan Nederland B.V.	Pocos networks	~79×10²⁷
81.173.32.0/22	AS50522	Sewan Nederland B.V.	Sewan Nederland B.V.	1024
81.173.64.0/20	AS50522	Sewan Nederland B.V.	Sewan Nederland B.V.	4096
81.173.0.0/22	AS50522	Sewan Nederland B.V.	Sewan Nederland B.V.	1024
81.173.125.0/24	AS50522	Sewan Nederland B.V.	Sewan Nederland B.V.	256
81.23.244.0/22	AS50522	Sewan Nederland B.V.	Sewan Nederland B.V.	1024
81.173.48.0/20	AS50522	Sewan Nederland B.V.	Sewan Nederland B.V.	4096
185.61.68.0/22	AS50522	Sewan Nederland B.V.	Sewan Nederland B.V.	1024
109.235.32.0/21	AS50522	Sewan Nederland B.V.	Sewan Nederland B.V.	2048
81.173.96.0/22	AS50522	Sewan Nederland B.V.	Sewan Nederland B.V.	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 'AS50220 - AS50841'

as-block:       AS50220 - AS50841
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:        2024-08-12T14:10:44Z
last-modified:  2024-08-12T14:10:44Z
source:         RIPE

% Information related to 'AS50522'

% Abuse contact for 'AS50522' is 'abuse@sewan.nl'

aut-num:        AS50522
as-name:        SEWAN-NL
org:            ORG-PB32-RIPE
remarks:        Transits
import:         from AS1299 action pref=100; accept ANY
export:         to AS1299 announce AS50522:AS-SEWAN-NL
import:         from AS3356 action pref=100; accept ANY
export:         to AS3356 announce AS-POCOS
remarks:        Peering
import:         from AS20562 action pref=100; accept ANY
export:         to AS20562 announce AS50522:AS-SEWAN-NL
import:         from AS6939 action pref=160; accept ANY
export:         to AS6939 announce AS50522
import:         from AS202120 action pref=170; accept ANY
export:         to AS202120 announce AS-POCOS
import:         from AS6777 action pref=150; accept ANY
export:         to AS6777 announce ANY
import:         from AS49685 action pref=160; accept ANY
export:         to AS49685 announce AS-POCOS
import:         from AS59865 action pref=1600; accept ANY
export:         to AS59865 announce AS-POCOS
import:         from AS20495 action pref=160; accept ANY
export:         to AS20495 announce AS-POCOS
import:         from AS49917 action pref=150; accept ANY
export:         to AS49917 announce AS-POCOS
import:         from AS206499 action pref=160; accept ANY
export:         to AS206499 announce AS-POCOS
import:         from AS15196 action pref=160; accept ANY
export:         to AS15196 announce AS-POCOS
import:         from AS41441 action pref=150; accept ANY
export:         to AS41441 announce AS-POCOS
import:         from AS34307 action pref=150; accept ANY
export:         to AS34307 announce AS-POCOS
import:         from AS20940 action pref=160; accept AS-AKAMAI
export:         to AS20940 announce AS-POCOS
import:         from AS714 action pref=160; accept AS-APPLE
export:         to AS714 announce AS-POCOS
import:         from AS13335 action pref=160; accept AS-CLOUDFLARE
export:         to AS13335 announce AS-POCOS
import:         from AS3265 action pref=160; accept ANY
export:         to AS3265 announce AS-POCOS
import:         from AS42 action pref=160; accept ANY
export:         to AS42 announce AS-POCOS
import:         from AS3856 action pref=160; accept ANY
export:         to AS3856 announce AS-POCOS
import:         from AS8075 action pref=160; accept ANY
export:         to AS8075 announce AS-POCOS
import:         from AS32934 action pref=160; accept any
export:         to AS32934 announce AS-POCOS
import:         from AS42707 action pref=160; accept any
export:         to AS42707 announce AS-POCOS
import:         from AS39637 action pref=160; accept any
export:         to AS39637 announce AS-POCOS
import:         from AS24730 action pref=160; accept ANY
export:         to AS24730 announce AS-POCOS
import:         from AS9150 action pref=160; accept ANY
export:         to AS9150 announce AS-POCOS
import:         from AS57866 action pref=160; accept ANY
export:         to AS57866 announce AS-POCOS
import:         from AS2906 action pref=160; accept ANY
export:         to AS2906 announce AS-POCOS
remarks:        Customers
import:         from AS207357 action pref=160; accept AS207357
export:         to AS207357 announce ANY
import:         from AS201117 action pref=160; accept AS201117
export:         to AS201117 announce ANY
import:         from AS200342 action pref=160; accept AS200342
export:         to AS200342 announce ANY
admin-c:        SWN50522
tech-c:         SWN50522
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         SEWAN-NL-MNT
created:        2010-02-02T14:34:53Z
last-modified:  2026-05-11T21:14:35Z
source:         RIPE # Filtered

organisation:   ORG-PB32-RIPE
org-name:       Sewan Nederland B.V.
country:        NL
reg-nr:         17097024
org-type:       LIR
address:        Science Park 5218
address:        5692 EG
address:        Son en Breugel
address:        NETHERLANDS
phone:          +31880100700
fax-no:         +31880100799
admin-c:        SWN50522
abuse-c:        SWN50522
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        SEWAN-NL-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         POCOS-MNT
created:        2010-01-15T13:31:04Z
last-modified:  2026-05-13T07:20:34Z
source:         RIPE # Filtered

role:           SEWAN-NL-NOC
address:        Science Park Eindhoven 5218, 5692 EG, Son en Breugel, Netherlands
phone:          +31 88 0100700
admin-c:        SH16106-RIPE
admin-c:        SVZ58-RIPE
tech-c:         SH16106-RIPE
tech-c:         SVZ58-RIPE
abuse-mailbox:  abuse@sewan.nl
nic-hdl:        SWN50522
created:        2026-05-11T20:55:06Z
last-modified:  2026-05-11T21:17:43Z
source:         RIPE # Filtered
mnt-by:         SEWAN-NL-MNT

% This query was served by the RIPE Database Query Service version 1.122.1 (SHETLAND)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS50220 - AS50841",
    "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" : "2024-08-12",
    "date_updated" : "2024-08-12",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS50522",
    "as_name" : "SEWAN-NL",
    "status" : "ASSIGNED",
    "import" : [ "from AS1299 action pref=100; accept ANY", "from AS3356 action pref=100; accept ANY", "from AS20562 action pref=100; accept ANY", "from AS6939 action pref=160; accept ANY", "from AS202120 action pref=170; accept ANY", "from AS6777 action pref=150; accept ANY", "from AS49685 action pref=160; accept ANY", "from AS59865 action pref=1600; accept ANY", "from AS20495 action pref=160; accept ANY", "from AS49917 action pref=150; accept ANY", "from AS206499 action pref=160; accept ANY", "from AS15196 action pref=160; accept ANY", "from AS41441 action pref=150; accept ANY", "from AS34307 action pref=150; accept ANY", "from AS20940 action pref=160; accept AS-AKAMAI", "from AS714 action pref=160; accept AS-APPLE", "from AS13335 action pref=160; accept AS-CLOUDFLARE", "from AS3265 action pref=160; accept ANY", "from AS42 action pref=160; accept ANY", "from AS3856 action pref=160; accept ANY", "from AS8075 action pref=160; accept ANY", "from AS32934 action pref=160; accept any", "from AS42707 action pref=160; accept any", "from AS39637 action pref=160; accept any", "from AS24730 action pref=160; accept ANY", "from AS9150 action pref=160; accept ANY", "from AS57866 action pref=160; accept ANY", "from AS2906 action pref=160; accept ANY", "from AS207357 action pref=160; accept AS207357", "from AS201117 action pref=160; accept AS201117", "from AS200342 action pref=160; accept AS200342" ],
    "export" : [ "to AS1299 announce AS50522:AS-SEWAN-NL", "to AS3356 announce AS-POCOS", "to AS20562 announce AS50522:AS-SEWAN-NL", "to AS6939 announce AS50522", "to AS202120 announce AS-POCOS", "to AS6777 announce ANY", "to AS49685 announce AS-POCOS", "to AS59865 announce AS-POCOS", "to AS20495 announce AS-POCOS", "to AS49917 announce AS-POCOS", "to AS206499 announce AS-POCOS", "to AS15196 announce AS-POCOS", "to AS41441 announce AS-POCOS", "to AS34307 announce AS-POCOS", "to AS20940 announce AS-POCOS", "to AS714 announce AS-POCOS", "to AS13335 announce AS-POCOS", "to AS3265 announce AS-POCOS", "to AS42 announce AS-POCOS", "to AS3856 announce AS-POCOS", "to AS8075 announce AS-POCOS", "to AS32934 announce AS-POCOS", "to AS42707 announce AS-POCOS", "to AS39637 announce AS-POCOS", "to AS24730 announce AS-POCOS", "to AS9150 announce AS-POCOS", "to AS57866 announce AS-POCOS", "to AS2906 announce AS-POCOS", "to AS207357 announce ANY", "to AS201117 announce ANY", "to AS200342 announce ANY" ],
    "organization" : "ORG-PB32-RIPE",
    "admin_contacts" : [ "SWN50522" ],
    "tech_contacts" : [ "SWN50522" ],
    "remarks" : [ "Transits", "Peering", "Customers" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "SEWAN-NL-MNT" ],
    "date_created" : "2010-02-02",
    "date_updated" : "2026-05-11",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-PB32-RIPE",
    "name" : "Sewan Nederland B.V.",
    "type" : "LIR",
    "address" : [ "Science Park 5218", "5692 EG", "Son en Breugel", "NETHERLANDS" ],
    "city" : "Son En Breugel",
    "country" : [ "NL" ],
    "phone" : [ "+31880100700" ],
    "fax_no" : [ "+31880100799" ],
    "admin_contacts" : [ "SWN50522" ],
    "abuse_contacts" : [ "SWN50522" ],
    "mnt_ref" : [ "RIPE-NCC-HM-MNT", "SEWAN-NL-MNT" ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT", "POCOS-MNT" ],
    "date_created" : "2010-01-15",
    "date_updated" : "2026-05-13",
    "source" : "RIPE",
    "addressCountry" : "NETHERLANDS"
  },
  "administrative_contacts" : [ {
    "handle" : "SWN50522",
    "name" : "SEWAN-NL-NOC",
    "address" : [ "Science Park Eindhoven 5218, 5692 EG, Son en Breugel, Netherlands" ],
    "street" : "Science Park Eindhoven",
    "city" : "Son En Breugel",
    "country" : "NETHERLANDS",
    "abuse_mailbox" : [ "abuse@sewan.nl" ],
    "phone" : [ "+31 88 0100700" ],
    "admin_contacts" : [ "SH16106-RIPE", "SVZ58-RIPE" ],
    "tech_contacts" : [ "SH16106-RIPE", "SVZ58-RIPE" ],
    "mnt_by" : [ "SEWAN-NL-MNT" ],
    "date_created" : "2026-05-11",
    "date_updated" : "2026-05-11",
    "source" : "RIPE",
    "addressCountry" : "NETHERLANDS"
  } ],
  "technical_contacts" : [ {
    "handle" : "SWN50522",
    "name" : "SEWAN-NL-NOC",
    "address" : [ "Science Park Eindhoven 5218, 5692 EG, Son en Breugel, Netherlands" ],
    "street" : "Science Park Eindhoven",
    "city" : "Son En Breugel",
    "country" : "NETHERLANDS",
    "abuse_mailbox" : [ "abuse@sewan.nl" ],
    "phone" : [ "+31 88 0100700" ],
    "admin_contacts" : [ "SH16106-RIPE", "SVZ58-RIPE" ],
    "tech_contacts" : [ "SH16106-RIPE", "SVZ58-RIPE" ],
    "mnt_by" : [ "SEWAN-NL-MNT" ],
    "date_created" : "2026-05-11",
    "date_updated" : "2026-05-11",
    "source" : "RIPE",
    "addressCountry" : "NETHERLANDS"
  } ]
}

Peers

AS Number	Description	Country
AS51907	Kanton Zug	CH
AS58057	Securebit AG	CH
AS25220	equada network GmbH	DE
AS39249	Netassist International EOOD	BG
AS38880	Micron21 Datacentre Pty Ltd	AU
AS31133	PJSC MegaFon	RU
AS198150	SIACOM JSC	GE
AS45352	IP ServerOne Solutions Sdn Bhd	MY
AS37468	Angola Cables	AO
AS60144	3W Infra B.V.	NL

Upstreams

AS Number	Description	Country
AS50869	IPng Networks GmbH	CH
AS12552	GlobalConnect AB	SE
AS58057	Securebit AG	CH
AS7195	EDGEUNO S.A.S	CO
AS39249	Netassist International EOOD	BG
AS6939	Hurricane Electric LLC	US
AS6204	ZET.NET IP Transit	RO
AS22356	Durand do Brasil Ltda	BR
AS56911	Warian S.R.L.	IT
AS37468	Angola Cables	AO

Downstreams

AS Number	Description	Country
AS201117	ZeroPlex B.V.	NL
AS1299	Arelion Sweden AB	SE
AS200342	24x7 Hosting B.V.	NL
AS61349	MaxiTEL Telecom B.V.	NL
AS41960	Nextpertise B.V.	NL

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