ASN AS49033 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS49033?

AS49033 is listed under Critical Core BV.

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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AS49033 Critical Core BV | IPGeolocation.io

Critical Core BV criticalcore.nl

NL 16 Routes

AS Data

AS49033

AS49033 – Critical Core BV

AS Number	49033
AS Name	CRITICALCORE
Organization	Critical Core BV(org-ccb17-ripe)
Country	NL
Website	criticalcore.nl
Number of IPv4 Routes	14
Number of IPv6 Routes	2
ASN type	BUSINESS
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2016-10-04

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Use ASN data for AS49033 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
185.232.160.0/22	AS49033	Critical Core BV	Critical Core BV	1024
113.212.72.0/22	AS49033	Critical Core BV	Ritesim.com Limited	1024
204.8.80.0/22	AS49033	Critical Core BV	Ritesim.com Limited	1024
95.143.97.0/24	AS49033	Critical Core BV	Ritesim.com Limited	256
2a0f:ddc0::/29	AS49033	Critical Core BV	Critical Core BV	~634×10²⁷
103.104.60.0/22	AS49033	Critical Core BV	Ritesim.com Limited	1024
2a0f:dcc0::/29	AS49033	Critical Core BV	Critical Core BV	~634×10²⁷
185.166.88.0/22	AS49033	Critical Core BV	Ritesim.com Limited	1024
103.66.56.0/22	AS49033	Critical Core BV	Ritesim.com Limited	1024
94.46.216.0/22	AS49033	Critical Core BV	Ritesim.com Limited	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 'AS47870 - AS49384'

as-block:       AS47870 - AS49384
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:        2025-07-09T08:51:07Z
last-modified:  2025-07-09T08:51:07Z
source:         RIPE

% Information related to 'AS49033'

% Abuse contact for 'AS49033' is 'abuse@criticalcore.nl'

aut-num:        AS49033
as-name:        CRITICALCORE
org:            ORG-CCB17-RIPE
import:         from AS174 accept ANY
import-via:     AS6777 from AS-ANY accept ANY
export:         to AS174 announce AS-CRITICALCORE
export-via:     AS6777 to AS-ANY announce AS-CRITICALCORE
import:         from AS8455 accept ANY
export:         to AS8455 announce AS-CRITICALCORE
admin-c:        AK12345
tech-c:         AK12345
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MNT-SMARTROUTING
created:        2016-10-04T14:02:48Z
last-modified:  2025-12-03T13:03:55Z
source:         RIPE
import:         from AS50263 accept any
export:         to AS50263 announce AS-CRITICALCORE
mp-import:      afi ipv6.unicast from AS50263 accept any
mp-export:      afi ipv6.unicast to AS50263 announce AS-CRITICALCORE
import:         from AS6830 accept ANY
export:         to AS6830 announce AS49033:AS-CRITICALCORE
mp-import:      afi ipv6.unicast from AS6830 accept ANY
mp-export:      afi ipv6.unicast to AS6830 announce AS49033:AS-CRITICALCORE
import:         from AS35133 accept ANY
export:         to AS35133 announce AS49033:AS-CRITICALCORE
mp-import:      afi ipv6.unicast from AS35133 accept ANY
mp-export:      afi ipv6.unicast to AS35133 announce AS49033:AS-CRITICALCORE
import:         from AS50263 accept ANY
export:         to AS50263 announce AS49033:AS-CRITICALCORE
mp-import:      afi ipv6.unicast from AS50263 accept ANY
mp-export:      afi ipv6.unicast to AS50263 announce AS49033:AS-CRITICALCORE
import:         from AS206221 accept ANY
export:         to AS206221 announce AS49033:AS-CRITICALCORE
mp-import:      afi ipv6.unicast from AS206221 accept ANY
mp-export:      afi ipv6.unicast to AS206221 announce AS49033:AS-CRITICALCORE
import:         from AS20562 accept ANY
export:         to AS20562 announce AS49033:AS-CRITICALCORE
mp-import:      afi ipv6.unicast from AS20562 accept ANY
mp-export:      afi ipv6.unicast to AS20562 announce AS49033:AS-CRITICALCORE
import:         from AS24785 accept ANY
export:         to AS24785 announce AS49033:AS-CRITICALCORE
mp-import:      afi ipv6.unicast from AS24785 accept ANY
mp-export:      afi ipv6.unicast to AS24785 announce AS49033:AS-CRITICALCORE
import:         from AS34307 accept ANY
export:         to AS34307 announce AS49033:AS-CRITICALCORE
mp-import:      afi ipv6.unicast from AS34307 accept ANY
mp-export:      afi ipv6.unicast to AS34307 announce AS49033:AS-CRITICALCORE

organisation:   ORG-CCB17-RIPE
org-name:       Critical Core BV
country:        NL
org-type:       LIR
address:        Trivium 76
address:        4873LP
address:        Etten-Leur
address:        NETHERLANDS
phone:          +31 000000000
admin-c:        AK12345
tech-c:         AK12345
abuse-c:        SRS8282
mnt-ref:        MNT-SMARTROUTING
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-SMARTROUTING
created:        2019-07-26T07:24:42Z
last-modified:  2025-07-10T07:36:25Z
source:         RIPE # Filtered

person:         Arjan Kunstman
address:        Straatweg 60
address:        3604BC Maarssen
phone:          +31000000000
nic-hdl:        AK12345
mnt-by:         MNT-SMARTROUTING
created:        2014-01-18T18:29:58Z
last-modified:  2022-06-04T11:02:25Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.121.2 (SHETLAND)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS47870 - AS49384",
    "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" : "2025-07-09",
    "date_updated" : "2025-07-09",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS49033",
    "as_name" : "CRITICALCORE",
    "status" : "ASSIGNED",
    "import_via" : [ "AS6777 from AS-ANY accept ANY" ],
    "import" : [ "from AS174 accept ANY", "from AS8455 accept ANY", "from AS50263 accept any", "from AS6830 accept ANY", "from AS35133 accept ANY", "from AS50263 accept ANY", "from AS206221 accept ANY", "from AS20562 accept ANY", "from AS24785 accept ANY", "from AS34307 accept ANY" ],
    "mp_import" : [ "afi ipv6.unicast from AS50263 accept any", "afi ipv6.unicast from AS6830 accept ANY", "afi ipv6.unicast from AS35133 accept ANY", "afi ipv6.unicast from AS50263 accept ANY", "afi ipv6.unicast from AS206221 accept ANY", "afi ipv6.unicast from AS20562 accept ANY", "afi ipv6.unicast from AS24785 accept ANY", "afi ipv6.unicast from AS34307 accept ANY" ],
    "export_via" : [ "AS6777 to AS-ANY announce AS-CRITICALCORE" ],
    "export" : [ "to AS174 announce AS-CRITICALCORE", "to AS8455 announce AS-CRITICALCORE", "to AS50263 announce AS-CRITICALCORE", "to AS6830 announce AS49033:AS-CRITICALCORE", "to AS35133 announce AS49033:AS-CRITICALCORE", "to AS50263 announce AS49033:AS-CRITICALCORE", "to AS206221 announce AS49033:AS-CRITICALCORE", "to AS20562 announce AS49033:AS-CRITICALCORE", "to AS24785 announce AS49033:AS-CRITICALCORE", "to AS34307 announce AS49033:AS-CRITICALCORE" ],
    "mp_export" : [ "afi ipv6.unicast to AS50263 announce AS-CRITICALCORE", "afi ipv6.unicast to AS6830 announce AS49033:AS-CRITICALCORE", "afi ipv6.unicast to AS35133 announce AS49033:AS-CRITICALCORE", "afi ipv6.unicast to AS50263 announce AS49033:AS-CRITICALCORE", "afi ipv6.unicast to AS206221 announce AS49033:AS-CRITICALCORE", "afi ipv6.unicast to AS20562 announce AS49033:AS-CRITICALCORE", "afi ipv6.unicast to AS24785 announce AS49033:AS-CRITICALCORE", "afi ipv6.unicast to AS34307 announce AS49033:AS-CRITICALCORE" ],
    "organization" : "ORG-CCB17-RIPE",
    "admin_contacts" : [ "AK12345" ],
    "tech_contacts" : [ "AK12345" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "MNT-SMARTROUTING" ],
    "date_created" : "2016-10-04",
    "date_updated" : "2025-12-03",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-CCB17-RIPE",
    "name" : "Critical Core BV",
    "type" : "LIR",
    "address" : [ "Trivium 76", "4873LP", "Etten-Leur", "NETHERLANDS" ],
    "street" : "Trivium",
    "city" : "Etten-leur",
    "zip_code" : "4873LP",
    "country" : [ "NL" ],
    "phone" : [ "+31 000000000" ],
    "admin_contacts" : [ "AK12345" ],
    "tech_contacts" : [ "AK12345" ],
    "abuse_contacts" : [ "SRS8282" ],
    "mnt_ref" : [ "MNT-SMARTROUTING" ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT", "MNT-SMARTROUTING" ],
    "date_created" : "2019-07-26",
    "date_updated" : "2025-07-10",
    "source" : "RIPE",
    "addressCountry" : "NETHERLANDS"
  },
  "administrative_contacts" : [ {
    "handle" : "AK12345",
    "name" : "Arjan Kunstman",
    "address" : [ "Straatweg 60", "3604BC Maarssen" ],
    "street" : "Straatweg",
    "city" : "Maarssen",
    "zip_code" : "3604BC",
    "phone" : [ "+31000000000" ],
    "mnt_by" : [ "MNT-SMARTROUTING" ],
    "date_created" : "2014-01-18",
    "date_updated" : "2022-06-04",
    "source" : "RIPE"
  } ],
  "technical_contacts" : [ {
    "handle" : "AK12345",
    "name" : "Arjan Kunstman",
    "address" : [ "Straatweg 60", "3604BC Maarssen" ],
    "street" : "Straatweg",
    "city" : "Maarssen",
    "zip_code" : "3604BC",
    "phone" : [ "+31000000000" ],
    "mnt_by" : [ "MNT-SMARTROUTING" ],
    "date_created" : "2014-01-18",
    "date_updated" : "2022-06-04",
    "source" : "RIPE"
  } ]
}

Peers

AS Number	Description	Country
AS50509	Transroute Telecom LTD	RU
AS58057	Securebit AG	CH
AS20932	Service Telecom	CH
AS60602	Inovare-Prim SRL	MD
AS38880	Micron21 Datacentre Pty Ltd	AU
AS31133	PJSC MegaFon	RU
AS42541	FIBERBY	DK
AS198150	SIACOM JSC	GE
AS267256	ONETIS TECNOLOGIA LTDA	BR
AS56655	Gigahost AS	NO

Upstreams

AS Number	Description	Country
AS50869	IPng Networks GmbH	CH
AS209090	Association Stolon	FR
AS58057	Securebit AG	CH
AS24785	Broadband Hosting B.V.	NL
AS6939	Hurricane Electric LLC	US
AS25091	IP Max SA	CH
AS6204	ZET.NET IP Transit	RO
AS6830	Liberty Global Europe Holding B.V.	NL
AS8298	IPng Networks GmbH	CH
AS7713	Telekomunikasi Indonesia PT	ID

Downstreams

AS Number	Description	Country
AS62125	Proact Netherlands B.V.	NL

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