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AS57840 Comnet Bulgaria Holding Ltd.

Q: Why is WHOIS data shown for an ASN?

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

ASN Lookup Tool

Comnet Bulgaria Holding Ltd. comnet.bg

BG 1 Routes

AS Data

AS57840

AS57840 – Comnet Bulgaria Holding Ltd.

AS Number	57840
AS Name	Kontrax
Organization	Comnet Bulgaria Holding Ltd. (org-cbhl1-ripe)
Country	BG
Website	comnet.bg
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2012-02-20

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
37.209.175.0/24	AS57840	Comnet Bulgaria Holding Ltd.	ComNet Sliven PPPoE and Leased	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 'AS57370 - AS57973'

as-block:       AS57370 - AS57973
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:        2025-04-24T14:15:44Z
last-modified:  2025-04-24T14:15:44Z
source:         RIPE

% Information related to 'AS57840'

% Abuse contact for 'AS57840' is 'abuse@comnet.bg'

aut-num:        AS57840
as-name:        Kontrax
org:            ORG-CBHL1-RIPE
import:         from AS43561 accept ANY
import:         from AS8866 accept ANY
export:         to AS43561 announce AS57840
export:         to AS8866 announce AS57840
admin-c:        II147-RIPE
tech-c:         DK1476-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         COMNET-ADM
created:        2012-02-20T14:33:17Z
last-modified:  2020-04-02T12:39:49Z
source:         RIPE

organisation:   ORG-CBHL1-RIPE
org-name:       Comnet Bulgaria Holding Ltd.
country:        BG
org-type:       LIR
address:        Konstantin Velichkov 34 et.5
address:        8000
address:        Burgas
address:        BULGARIA
phone:          +35956813022
admin-c:        DK1476-RIPE
admin-c:        II147-RIPE
mnt-ref:        COMNET-ADM
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         COMNET-ADM
abuse-c:        CB12430-RIPE
created:        2004-10-29T08:43:58Z
last-modified:  2025-05-07T06:17:32Z
source:         RIPE # Filtered

person:         Dimitar Kostadinov
address:        Comnet Bulgaria Holding Ltd.
address:        Bulgaria
address:        8000 Bourgas
address:        Stefan Stambolov 74
phone:          +359 56 800416
nic-hdl:        DK1476-RIPE
mnt-by:         COMNET-ADM
created:        2004-07-26T15:49:22Z
last-modified:  2025-05-07T06:18:41Z
source:         RIPE # Filtered

person:         Ivan Ivanov
address:        Comnet Bulgaria Holding Ltd.
address:        Bulgaria
address:        8000 Bourgas
address:        Stefan Stambolov 74
phone:          +359 56 813022
nic-hdl:        II147-RIPE
mnt-by:         COMNET-ADM
created:        2003-05-28T07:07:42Z
last-modified:  2006-11-27T13:42:31Z
source:         RIPE # Filtered

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

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS57370 - AS57973",
    "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" : "2025-04-24",
    "date_updated" : "2025-04-24",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS57840",
    "as_name" : "Kontrax",
    "status" : "ASSIGNED",
    "import" : [ "from AS43561 accept ANY", "from AS8866 accept ANY" ],
    "export" : [ "to AS43561 announce AS57840", "to AS8866 announce AS57840" ],
    "organization" : "ORG-CBHL1-RIPE",
    "admin_contacts" : [ "II147-RIPE" ],
    "tech_contacts" : [ "DK1476-RIPE" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "COMNET-ADM" ],
    "date_created" : "2012-02-20",
    "date_updated" : "2020-04-02",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-CBHL1-RIPE",
    "name" : "Comnet Bulgaria Holding Ltd.",
    "type" : "LIR",
    "address" : [ "Konstantin Velichkov 34 et.5", "8000", "Burgas", "BULGARIA" ],
    "street" : "Konstantin Velichkov",
    "city" : "Burgas",
    "zip_code" : "8000",
    "country" : [ "BG" ],
    "phone" : [ "+35956813022" ],
    "admin_contacts" : [ "DK1476-RIPE", "II147-RIPE" ],
    "abuse_contacts" : [ "CB12430-RIPE" ],
    "mnt_ref" : [ "COMNET-ADM", "RIPE-NCC-HM-MNT" ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT", "COMNET-ADM" ],
    "date_created" : "2004-10-29",
    "date_updated" : "2025-05-07",
    "source" : "RIPE",
    "addressCountry" : "BULGARIA"
  },
  "administrative_contacts" : [ {
    "handle" : "II147-RIPE",
    "name" : "Ivan Ivanov",
    "address" : [ "Comnet Bulgaria Holding Ltd.", "Bulgaria", "8000 Bourgas", "Stefan Stambolov 74" ],
    "street" : "Bourgas Stefan Stambolov",
    "phone" : [ "+359 56 813022" ],
    "mnt_by" : [ "COMNET-ADM" ],
    "date_created" : "2003-05-28",
    "date_updated" : "2006-11-27",
    "source" : "RIPE"
  } ],
  "technical_contacts" : [ {
    "handle" : "DK1476-RIPE",
    "name" : "Dimitar Kostadinov",
    "address" : [ "Comnet Bulgaria Holding Ltd.", "Bulgaria", "8000 Bourgas", "Stefan Stambolov 74" ],
    "street" : "Bourgas Stefan Stambolov",
    "phone" : [ "+359 56 800416" ],
    "mnt_by" : [ "COMNET-ADM" ],
    "date_created" : "2004-07-26",
    "date_updated" : "2025-05-07",
    "source" : "RIPE"
  } ]
}

Peers

AS Number	Description	Country
AS43561	Vivacom Bulgaria EAD	BG
AS8866	Vivacom Bulgaria EAD	BG

Upstreams

AS Number	Description	Country
AS8866	Vivacom Bulgaria EAD	BG

Frequently Asked Questions

What is ASN AS57840?

ASN AS57840 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS57840?

AS57840 is listed under Comnet Bulgaria Holding Ltd..

What do peers, upstreams, and downstreams mean?

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 included here?

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

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.