ASN AS2103 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS2103?

AS2103 is listed under IFREMER Centre de Brest.

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.

AS2103 IFREMER Centre de Brest

IFREMER Centre de Brest ifremer.fr

FR 2 Routes

AS Data

AS2103

AS2103 – IFREMER Centre de Brest

AS Number	2103
AS Name	FR-IFREMER-BREST
Organization	IFREMER Centre de Brest (org-ra8-ripe)
Country	FR
Website	ifremer.fr
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	ISP
Allocation Status	LEGACY
Registry	RIPE
Date Allocated	2002-08-21

ASN Intelligence API for production workflows

Use ASN data for AS2103 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
134.246.240.0/24	AS2103	IFREMER Centre de Brest	Institut Francais de Recherche pour l'Exploitation de la Mer IFREMER	256
134.246.0.0/16	AS2103	IFREMER Centre de Brest	Institut Francais de Recherche pour l'Exploitation de la Mer IFREMER	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 'AS2057 - AS2136'

as-block:       AS2057 - AS2136
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:        2018-11-22T15:27:16Z
last-modified:  2018-11-22T15:27:16Z
source:         RIPE

% Information related to 'AS2103'

% Abuse contact for 'AS2103' is 'certsvp@renater.fr'

aut-num:        AS2103
as-name:        FR-IFREMER-BREST
descr:          IFREMER Centre de Brest
import:         from AS2200 action pref=100; accept ANY
export:         to AS2200 announce AS2103
import:         from AS3215 action pref= 200; accept ANY
export:         to AS3215 announce AS2103
admin-c:        PC256-RIPE
org:            ORG-RA8-RIPE
admin-c:        GR1378-RIPE
tech-c:         DLB251-RIPE
tech-c:         OG323-RIPE
status:         LEGACY
mnt-by:         RENATER-MNT
remarks:        changed:        RenSVP@Renater.fr 19991014
remarks:        changed:        er-transfer@ripe.net 20020821
remarks:        changed:        er-transfer@ripe.net 20030109
remarks:        changed:        rensvp@renater.fr 20030311
remarks:        changed:        rensvp@renater.fr 20170922
remarks:        changed:        rensvp@renater.fr 20171114
remarks:        changed:        rensvp@renater.fr 20190624
created:        2002-08-21T16:42:41Z
last-modified:  2019-06-24T12:28:20Z
source:         RIPE # Filtered

organisation:   ORG-RA8-RIPE
org-name:       Renater
country:        FR
org-type:       LIR
address:        23-25, rue Daviel
address:        75013
address:        Paris
address:        FRANCE
phone:          +33153942030
fax-no:         +33153942031
admin-c:        DGR28-RIPE
admin-c:        LG4829-RIPE
admin-c:        FL842-RIPE
admin-c:        RP16707-RIPE
admin-c:        CT1053-RIPE
abuse-c:        RA6839-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        RENATER-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         RENATER-MNT
remarks:        changed:        rensvp@renater.fr 20200901
remarks:        changed:        rensvp@renater.fr 20230302
created:        2004-04-17T11:23:28Z
last-modified:  2023-03-02T07:03:52Z
source:         RIPE # Filtered

role:           GIP RENATER
address:        GIP RENATER
address:        23-25 Rue Daviel
address:        75013 PARIS
address:        FRANCE
phone:          +33 1 53 94 20 30
fax-no:         +33 1 53 94 20 31
abuse-mailbox:  CertSVP@Renater.fr
remarks:        ---------------------------------------------------------------
remarks:        Information: https://www.renater.fr/
remarks:        ---------------------------------------------------------------
remarks:        IRT-Object: IRT-CERT-Renater
remarks:        ---------------------------------------------------------------
remarks:        Network Operations Center (24/7/365):
remarks:        noc-renater@noc.renater.fr
remarks:        0800 77 47 95 (toll free)
remarks:        ---------------------------------------------------------------
remarks:        Peering requests: peering@renater.fr
remarks:        ---------------------------------------------------------------
remarks:        Customers technical support: support@renater.fr
remarks:        ---------------------------------------------------------------
admin-c:        DGR28-RIPE
tech-c:         LG4829-RIPE
tech-c:         FL842-RIPE
tech-c:         RP16707-RIPE
tech-c:         CT1053-RIPE
tech-c:         GRSO1-RIPE
nic-hdl:        GR1378-RIPE
mnt-by:         RENATER-MNT
remarks:        changed:        RenSVP@Renater.fr 20140619
remarks:        changed:        rensvp@renater.fr 20230302
created:        2002-08-08T17:14:15Z
last-modified:  2023-03-02T07:03:53Z
source:         RIPE # Filtered

person:         Dominique LE BRUN
address:        IFREMER - Institut Francais de Recherche pour l'Exploitation de la Mer
address:        Centre de Brest BP 70, F-29280 Plouzane, France
phone:          +33 2 98 22 46 01
fax-no:         +33 2 98 22 45 46
nic-hdl:        DLB251-RIPE
mnt-by:         IFREMER-MNT
mnt-by:         RENATER-MNT
remarks:        changed:        malek.shabou@nic.fr 20000316
remarks:        changed:        rensvp@renater.fr 20031212
remarks:        changed:        rensvp@renater.fr 20151209
created:        1970-01-01T00:00:00Z
last-modified:  2015-12-09T09:33:28Z
source:         RIPE # Filtered

person:         Olivier GONTIER
address:        IFREMER - Institut Francais de Recherche pour l'Exploitation de la Mer
address:        Centre de Brest BP 70, F-29280 Plouzane, France
phone:          +33 2 98 22 47 06
fax-no:         +33 2 98 22 45 46
nic-hdl:        OG323-RIPE
mnt-by:         IFREMER-MNT
mnt-by:         RENATER-MNT
remarks:        changed:        Jacques.Le.Rest@ifremer.fr 20031224
remarks:        changed:        rensvp@renater.fr 20151209
created:        2003-12-24T08:57:14Z
last-modified:  2015-12-09T09:33:29Z
source:         RIPE # Filtered

person:         Pierre COTTY
address:        IFREMER - Institut Francais de Recherche pour l'Exploitation de la Mer.
address:        Centre de Brest BP 70, F-29280 Plouzane, France
phone:          +33 2 98 22 41 86
fax-no:         +33 2 98 22 45 46
nic-hdl:        PC256-RIPE
mnt-by:         IFREMER-MNT
mnt-by:         RENATER-MNT
remarks:        changed:        rensvp@renater.fr 19960821
remarks:        changed:        rensvp@renater.fr 20031212
remarks:        changed:        rensvp@renater.fr 20151209
created:        1970-01-01T00:00:00Z
last-modified:  2015-12-09T09:33:29Z
source:         RIPE # Filtered

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



#
# 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:       2057 - 2106
ASName:         RIPE-ASNBLOCK-2057
ASHandle:       AS2057
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/2057

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" : "2057 - 2106",
    "as_handle" : "AS2057",
    "as_name" : "RIPE-ASNBLOCK-2057",
    "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/2057"
  } ],
  "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
AS2200	Renater	FR
AS3215	Orange S.A.	FR

Upstreams

AS Number	Description	Country
AS2200	Renater	FR
AS3215	Orange S.A.	FR

Contacts

Email Contacts

CertSVP@Renater.fr

Abuse Contacts

certsvp@renater.fr

ASN Lookup Tool

ASN Summary