ASN AS21033 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21033?

AS21033 is listed under ESSILOR International SAS.

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.

AS21033 ESSILOR International SAS

ASN Lookup Tool

ESSILOR International SAS essilor.fr

FR 8 Routes

AS Data

AS21033

AS21033 – ESSILOR International SAS

AS Number	21033
AS Name	ESSILOR
Organization	ESSILOR International SAS (org-ei25-ripe)
Country	FR
Website	essilor.fr
Number of IPv4 Routes	8
Number of IPv6 Routes	0
ASN type	BUSINESS
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2001-09-27

ASN Intelligence API for production workflows

Use ASN data for AS21033 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
193.242.11.0/24	AS21033	ESSILOR International SAS	ESSILOR International SAS	256
193.242.17.0/24	AS21033	ESSILOR International SAS	ESSILOR International SAS	256
193.242.46.0/24	AS21033	ESSILOR International SAS	ESSILOR International SAS	256
193.242.6.0/24	AS21033	ESSILOR International SAS	ESSILOR International SAS	256
193.242.5.0/24	AS21033	ESSILOR International SAS	ESSILOR International SAS	256
193.242.7.0/24	AS21033	ESSILOR International SAS	ESSILOR International SAS	256
193.242.42.0/23	AS21033	ESSILOR International SAS	ESSILOR International SAS	512
193.242.9.0/24	AS21033	ESSILOR International SAS	ESSILOR International SAS	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 'AS21004 - AS21151'

as-block:       AS21004 - AS21151
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:        2018-11-22T15:27:27Z
last-modified:  2018-11-22T15:27:27Z
source:         RIPE

% Information related to 'AS21033'

% Abuse contact for 'AS21033' is 'MISNETSupport@essilor.fr'

aut-num:        AS21033
as-name:        ESSILOR
org:            ORG-EI25-RIPE
import:         from AS8220 accept ANY
export:         to AS8220 announce AS21033
admin-c:        MGN16-RIPE
tech-c:         MGN16-RIPE
tech-c:         MVI92-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         COLT-FR-MNT
created:        2001-09-27T08:36:57Z
last-modified:  2025-11-28T15:14:07Z
source:         RIPE
sponsoring-org: ORG-CI9-RIPE

organisation:   ORG-EI25-RIPE
org-name:       ESSILOR International SAS
country:        FR
org-type:       OTHER
address:        147 Rue De Paris
address:        94220 Charenton le Pont
address:        France
abuse-c:        AC30248-RIPE
mnt-ref:        MGN-MNT
mnt-by:         MGN-MNT
created:        2012-02-23T15:48:54Z
last-modified:  2024-03-18T14:26:19Z
source:         RIPE # Filtered

role:           MGN NOC
address:        Odigo
address:        Network Operation Center
address:        50 cours de l'Ile Seguin
address:        92100 Boulogne-Billancourt
address:        France
phone:          +33 1 34 49 06 06
phone:          +33 1 34 49 06 13
fax-no:         +33 1 34 49 06 79
remarks:        trouble: Questions: mailto:noc@prosodie.com
admin-c:        DR6760-RIPE
admin-c:        MVI92-RIPE
tech-c:         MVI92-RIPE
nic-hdl:        MGN16-RIPE
remarks:        ----------------------------------------------------------------
remarks:        noc role account
remarks:        Informations: https://www.odigo.com
remarks:        Please send abuse notifications to abuse@prosodie.com
remarks:        ----------------------------------------------------------------
mnt-by:         MGN-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2023-01-16T13:31:19Z
source:         RIPE # Filtered

person:         Michael Villar
address:        50 cours de l'Ile Seguin
address:        92100 Boulogne-Billancourt
address:        FRANCE
phone:          +33 (0)134491073
nic-hdl:        MVI92-RIPE
mnt-by:         MNT-MVI92
created:        2006-07-25T15:32:25Z
last-modified:  2022-12-05T13:28:50Z
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" : "AS21004 - AS21151",
    "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" : "2018-11-22",
    "date_updated" : "2018-11-22",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS21033",
    "as_name" : "ESSILOR",
    "status" : "ASSIGNED",
    "import" : [ "from AS8220 accept ANY" ],
    "export" : [ "to AS8220 announce AS21033" ],
    "organization" : "ORG-EI25-RIPE",
    "sponsoring_organization" : "ORG-CI9-RIPE",
    "admin_contacts" : [ "MGN16-RIPE" ],
    "tech_contacts" : [ "MGN16-RIPE", "MVI92-RIPE" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "COLT-FR-MNT" ],
    "date_created" : "2001-09-27",
    "date_updated" : "2025-11-28",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-EI25-RIPE",
    "name" : "ESSILOR International SAS",
    "type" : "OTHER",
    "address" : [ "147 Rue De Paris", "94220 Charenton le Pont", "France" ],
    "street" : "Rue De Paris",
    "city" : "Charenton Le Pont",
    "zip_code" : "94220",
    "country" : [ "FR" ],
    "abuse_contacts" : [ "AC30248-RIPE" ],
    "mnt_ref" : [ "MGN-MNT" ],
    "mnt_by" : [ "MGN-MNT" ],
    "date_created" : "2012-02-23",
    "date_updated" : "2024-03-18",
    "source" : "RIPE",
    "addressCountry" : "FRANCE"
  },
  "administrative_contacts" : [ {
    "handle" : "MGN16-RIPE",
    "name" : "MGN NOC",
    "address" : [ "Odigo", "Network Operation Center", "50 cours de l'Ile Seguin", "92100 Boulogne-Billancourt", "France" ],
    "street" : "Cours De L'ile Seguin",
    "city" : "Boulogne-billancourt",
    "zip_code" : "92100",
    "country" : "FRANCE",
    "phone" : [ "+33 1 34 49 06 06", "+33 1 34 49 06 13" ],
    "fax_no" : [ "+33 1 34 49 06 79" ],
    "admin_contacts" : [ "DR6760-RIPE", "MVI92-RIPE" ],
    "tech_contacts" : [ "MVI92-RIPE" ],
    "remarks" : [ "trouble: Questions: mailto:noc@prosodie.com", "----------------------------------------------------------------", "noc role account", "Informations: https://www.odigo.com", "Please send abuse notifications to abuse@prosodie.com", "----------------------------------------------------------------" ],
    "mnt_by" : [ "MGN-MNT" ],
    "date_created" : "1970-01-01",
    "date_updated" : "2023-01-16",
    "source" : "RIPE",
    "addressCountry" : "FRANCE"
  } ],
  "technical_contacts" : [ {
    "handle" : "MGN16-RIPE",
    "name" : "MGN NOC",
    "address" : [ "Odigo", "Network Operation Center", "50 cours de l'Ile Seguin", "92100 Boulogne-Billancourt", "France" ],
    "street" : "Cours De L'ile Seguin",
    "city" : "Boulogne-billancourt",
    "zip_code" : "92100",
    "country" : "FRANCE",
    "phone" : [ "+33 1 34 49 06 06", "+33 1 34 49 06 13" ],
    "fax_no" : [ "+33 1 34 49 06 79" ],
    "admin_contacts" : [ "DR6760-RIPE", "MVI92-RIPE" ],
    "tech_contacts" : [ "MVI92-RIPE" ],
    "remarks" : [ "trouble: Questions: mailto:noc@prosodie.com", "----------------------------------------------------------------", "noc role account", "Informations: https://www.odigo.com", "Please send abuse notifications to abuse@prosodie.com", "----------------------------------------------------------------" ],
    "mnt_by" : [ "MGN-MNT" ],
    "date_created" : "1970-01-01",
    "date_updated" : "2023-01-16",
    "source" : "RIPE",
    "addressCountry" : "FRANCE"
  }, {
    "handle" : "MVI92-RIPE",
    "name" : "Michael Villar",
    "address" : [ "50 cours de l'Ile Seguin", "92100 Boulogne-Billancourt", "FRANCE" ],
    "street" : "Cours De L'ile Seguin",
    "city" : "Boulogne-billancourt",
    "zip_code" : "92100",
    "country" : "FRANCE",
    "phone" : [ "+33 (0)134491073" ],
    "mnt_by" : [ "MNT-MVI92" ],
    "date_created" : "2006-07-25",
    "date_updated" : "2022-12-05",
    "source" : "RIPE",
    "addressCountry" : "FRANCE"
  } ]
}

Peers

AS Number	Description	Country
AS8220	COLT Technology Services Group Limited	GB
AS139883	SPTEL PTE. LTD.	SG

Upstreams

AS Number	Description	Country
AS8220	COLT Technology Services Group Limited	GB
AS139883	SPTEL PTE. LTD.	SG