ASN AS2546 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS2546?

AS2546 is listed under National Center of Scientific Research DEMOKRITOS.

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.

AS2546 National Center of Scientific Research DEMOKRITOS

ASN Lookup Tool

National Center of Scientific Research DEMOKRITOS ariadne-t.gr

GR 2 Routes

AS Data

AS2546

AS2546 – National Center of Scientific Research DEMOKRITOS

AS Number	2546
AS Name	ARIADNE-T
Organization	National Center of Scientific Research DEMOKRITOS (org-ncos1-ripe)
Country	GR
Website	ariadne-t.gr
Number of IPv4 Routes	1
Number of IPv6 Routes	1
ASN type	GOVERNMENT
Allocation Status	LEGACY
Registry	RIPE
Date Allocated	2002-09-19

ASN Intelligence API for production workflows

Use ASN data for AS2546 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2001:648:2120::/48	AS2546	National Center of Scientific Research DEMOKRITOS	Greek Academic & Research Computer Network	~1×10²⁴
143.233.0.0/16	AS2546	National Center of Scientific Research DEMOKRITOS	National Center of Scientific Research DEMOKRITOS	65536

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 'AS2546 - AS2547'

as-block:       AS2546 - AS2547
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:        2018-11-22T15:27:17Z
last-modified:  2018-11-22T15:27:17Z
source:         RIPE

% Information related to 'AS2546'

% Abuse contact for 'AS2546' is 'noc@ariadne-t.gr'

aut-num:        AS2546
as-name:        ARIADNE-T
descr:          Ariadne-t Network
descr:          Greek Academic & Research Computer Network
descr:          NCSR Demokritos
org:            ORG-NCOS1-RIPE
import:         from AS5408 accept AS-GRNET AS-AIX AS3333
export:         to AS5408 announce AS2546
default:        to AS5408
admin-c:        AN1558-RIPE
tech-c:         AN1558-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-by:         AS2546-MNT
created:        2002-09-19T15:18:58Z
last-modified:  2026-08-26T14:12:45Z
source:         RIPE # Filtered

organisation:   ORG-NCOS1-RIPE
org-name:       National Center of Scientific Research DEMOKRITOS
country:        GR
reg-nr:         Not Applicable
org-type:       LIR
address:        P.Grigoriou E and Neapoleos
address:        15310
address:        Aghia Paraskevi
address:        GREECE
phone:          +30 210 6503125
fax-no:         +30 210 6543615
admin-c:        YC1100-RIPE
tech-c:         YC1100-RIPE
abuse-c:        AR37119-RIPE
mnt-ref:        gr-demokritos-ariadne-1-mnt
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         gr-demokritos-ariadne-1-mnt
created:        2016-07-28T13:46:57Z
last-modified:  2026-08-27T14:06:29Z
source:         RIPE # Filtered

role:           Ariadne-t NOC
address:        Ariadne-t Network
address:        NCSR Demokritos
address:        Patriarxou Grigoriou E & Neapoleos 27
address:        153 10, Agia Paraskevi
address:        Athens, GREECE
phone:          +30 210 6503125
phone:          +30 210 6503144
phone:          +30 210 6503479
fax-no:         +30 210 6543606
admin-c:        PK10870-RIPE
tech-c:         MS59538-RIPE
mnt-by:         AS2546-MNT
nic-hdl:        AN1558-RIPE
created:        2004-12-21T10:02:40Z
last-modified:  2026-08-26T14:09:49Z
source:         RIPE # Filtered

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




#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       2546 - 2547
ASName:         RIPE-ASNBLOCK-2546
ASHandle:       AS2546
RegDate:        2002-10-15
Updated:        2003-04-25
Comment:        These addresses have been further assigned to users in
Comment:        the RIPE NCC region. Contact information can be found in
Comment:        the RIPE database at http://www.ripe.net/whois
Ref:            https://rdap.arin.net/registry/autnum/2546

ResourceLink:  https://apps.db.ripe.net/db-web-ui/query
ResourceLink:  whois.ripe.net


OrgName:        RIPE Network Coordination Centre
OrgId:          RIPE
Address:        P.O. Box 10096
City:           Amsterdam
StateProv:      
PostalCode:     1001EB
Country:        NL
RegDate:        
Updated:        2013-07-29
Ref:            https://rdap.arin.net/registry/entity/RIPE

ReferralServer:  whois.ripe.net
ResourceLink:  https://apps.db.ripe.net/db-web-ui/query

OrgAbuseHandle: ABUSE3850-ARIN
OrgAbuseName:   Abuse Contact
OrgAbusePhone:  +31205354444 
OrgAbuseEmail:  abuse@ripe.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE3850-ARIN

OrgTechHandle: RNO29-ARIN
OrgTechName:   RIPE NCC Operations
OrgTechPhone:  +31 20 535 4444 
OrgTechEmail:  hostmaster@ripe.net
OrgTechRef:    https://rdap.arin.net/registry/entity/RNO29-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "2546 - 2547",
    "as_handle" : "AS2546",
    "as_name" : "RIPE-ASNBLOCK-2546",
    "tech_contacts" : [ "RNO29-ARIN" ],
    "abuse_contacts" : [ "ABUSE3850-ARIN" ],
    "date_created" : "2002-10-15",
    "date_updated" : "2003-04-25",
    "source" : "https://rdap.arin.net/registry/autnum/2546"
  } ],
  "organization" : {
    "handle" : "RIPE",
    "name" : "RIPE Network Coordination Centre",
    "address" : [ "P.O. Box 10096", "Amsterdam", "1001EB", "NL" ],
    "city" : "Amsterdam",
    "zip_code" : "1001EB",
    "country" : [ "NL" ],
    "date_updated" : "2013-07-29",
    "source" : "https://rdap.arin.net/registry/entity/RIPE",
    "addressCountry" : "NL"
  },
  "technical_contacts" : [ {
    "handle" : "RNO29-ARIN",
    "name" : "RIPE NCC Operations",
    "email" : [ "hostmaster@ripe.net" ],
    "phone" : [ "+31 20 535 4444" ],
    "source" : "https://rdap.arin.net/registry/entity/RNO29-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "ABUSE3850-ARIN",
    "name" : "Abuse Contact",
    "email" : [ "abuse@ripe.net" ],
    "phone" : [ "+31205354444" ],
    "source" : "https://rdap.arin.net/registry/entity/ABUSE3850-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS5408	National Infrastructures for Research and Technology S.A.	GR

Upstreams

AS Number	Description	Country
AS5408	National Infrastructures for Research and Technology S.A.	GR