ASN AS43511 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS43511?

AS43511 is listed under EMARSYS eMarketing Systems GmbH.

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.

AS43511 EMARSYS eMarketing Systems GmbH

ASN Lookup Tool

EMARSYS eMarketing Systems GmbH emarsys.com

AT 2 Routes

AS Data

AS43511

AS43511 – EMARSYS eMarketing Systems GmbH

AS Number	43511
AS Name	EMARSYS-AS
Organization	EMARSYS eMarketing Systems GmbH (org-ees8-ripe)
Country	AT
Website	emarsys.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2007-08-14

ASN Intelligence API for production workflows

Use ASN data for AS43511 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
91.194.249.0/24	AS43511	EMARSYS eMarketing Systems GmbH	EMARSYS eMarketing Systems GmbH	256
91.194.248.0/24	AS43511	EMARSYS eMarketing Systems GmbH	EMARSYS eMarketing Systems GmbH	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 'AS43075 - AS44168'

as-block:       AS43075 - AS44168
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:        2023-12-11T15:09:58Z
last-modified:  2023-12-11T15:09:58Z
source:         RIPE

% Information related to 'AS43511'

% Abuse contact for 'AS43511' is 'abuse-report@emarsys.com'

aut-num:        AS43511
as-name:        EMARSYS-AS
remarks:        Emarsys eMarketing Systems AG
remarks:        ------------------------------------------------------------------
remarks:        --=> IP Transit Uplinks <=--
remarks:        ------------------------------------------------------------------
import:         from AS6830 action pref=100; accept ANY
export:         to AS6830 announce AS43511
import:         from AS8218 action pref=100; accept ANY
export:         to AS8218 announce AS43511
import:         from AS199236 action pref=100; accept ANY
export:         to AS199236 announce AS43511
org:            ORG-EeS8-RIPE
admin-c:        ESYS-EU
tech-c:         ESYS-EU
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         EMARSYS-MNT
created:        2007-08-14T12:48:32Z
last-modified:  2019-12-06T15:42:28Z
source:         RIPE

organisation:   ORG-EeS8-RIPE
org-name:       EMARSYS eMarketing Systems GmbH
country:        AT
org-type:       LIR
address:        Lassallestrasse 7b
address:        1020
address:        Vienna
address:        AUSTRIA
phone:          +4314782080
fax-no:         +431478208080
admin-c:        ESYS-EU
tech-c:         ESYS-EU
abuse-c:        ESYS-EU
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        EMARSYS-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         EMARSYS-MNT
created:        2012-09-24T10:34:12Z
last-modified:  2024-01-18T10:36:31Z
source:         RIPE # Filtered

role:           Emarsys EU NOC
remarks:        Emarsys eMarketing System AG
address:        Vienna, AT
abuse-mailbox:  abuse-report@emarsys.com
org:            ORG-EeS8-RIPE
admin-c:        LN3253-RIPE
admin-c:        TC7577-RIPE
admin-c:        TT7191-RIPE
tech-c:         LN3253-RIPE
tech-c:         TC7577-RIPE
tech-c:         TT7191-RIPE
nic-hdl:        ESYS-EU
mnt-by:         EMARSYS-MNT
created:        2018-09-06T10:18:12Z
last-modified:  2025-11-12T08:37:17Z
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" : "AS43075 - AS44168",
    "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" : "2023-12-11",
    "date_updated" : "2023-12-11",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS43511",
    "as_name" : "EMARSYS-AS",
    "status" : "ASSIGNED",
    "import" : [ "from AS6830 action pref=100; accept ANY", "from AS8218 action pref=100; accept ANY", "from AS199236 action pref=100; accept ANY" ],
    "export" : [ "to AS6830 announce AS43511", "to AS8218 announce AS43511", "to AS199236 announce AS43511" ],
    "organization" : "ORG-EeS8-RIPE",
    "admin_contacts" : [ "ESYS-EU" ],
    "tech_contacts" : [ "ESYS-EU" ],
    "remarks" : [ "Emarsys eMarketing Systems AG", "------------------------------------------------------------------", "--=> IP Transit Uplinks <=--", "------------------------------------------------------------------" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "EMARSYS-MNT" ],
    "date_created" : "2007-08-14",
    "date_updated" : "2019-12-06",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-EeS8-RIPE",
    "name" : "EMARSYS eMarketing Systems GmbH",
    "type" : "LIR",
    "address" : [ "Lassallestrasse 7b", "1020", "Vienna", "AUSTRIA" ],
    "street" : "Lassallestrasse",
    "city" : "Vienna",
    "zip_code" : "1020",
    "country" : [ "AT" ],
    "phone" : [ "+4314782080" ],
    "fax_no" : [ "+431478208080" ],
    "admin_contacts" : [ "ESYS-EU" ],
    "tech_contacts" : [ "ESYS-EU" ],
    "abuse_contacts" : [ "ESYS-EU" ],
    "mnt_ref" : [ "RIPE-NCC-HM-MNT", "EMARSYS-MNT" ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT", "EMARSYS-MNT" ],
    "date_created" : "2012-09-24",
    "date_updated" : "2024-01-18",
    "source" : "RIPE",
    "addressCountry" : "AUSTRIA"
  },
  "administrative_contacts" : [ {
    "handle" : "ESYS-EU",
    "name" : "Emarsys EU NOC",
    "address" : [ "Vienna, AT" ],
    "city" : "Vienna",
    "country" : "AT",
    "abuse_mailbox" : [ "abuse-report@emarsys.com" ],
    "organizations" : [ "ORG-EeS8-RIPE" ],
    "admin_contacts" : [ "LN3253-RIPE", "TC7577-RIPE", "TT7191-RIPE" ],
    "tech_contacts" : [ "LN3253-RIPE", "TC7577-RIPE", "TT7191-RIPE" ],
    "remarks" : [ "Emarsys eMarketing System AG" ],
    "mnt_by" : [ "EMARSYS-MNT" ],
    "date_created" : "2018-09-06",
    "date_updated" : "2025-11-12",
    "source" : "RIPE",
    "addressCountry" : "AT"
  } ],
  "technical_contacts" : [ {
    "handle" : "ESYS-EU",
    "name" : "Emarsys EU NOC",
    "address" : [ "Vienna, AT" ],
    "city" : "Vienna",
    "country" : "AT",
    "abuse_mailbox" : [ "abuse-report@emarsys.com" ],
    "organizations" : [ "ORG-EeS8-RIPE" ],
    "admin_contacts" : [ "LN3253-RIPE", "TC7577-RIPE", "TT7191-RIPE" ],
    "tech_contacts" : [ "LN3253-RIPE", "TC7577-RIPE", "TT7191-RIPE" ],
    "remarks" : [ "Emarsys eMarketing System AG" ],
    "mnt_by" : [ "EMARSYS-MNT" ],
    "date_created" : "2018-09-06",
    "date_updated" : "2025-11-12",
    "source" : "RIPE",
    "addressCountry" : "AT"
  } ]
}

Peers

AS Number	Description	Country
AS199236	EMARSYS eMarketing Systems GmbH	AT
AS8218	operated Upstreamnet gmbh	FR
AS6830	Liberty Global Europe Holding B.V.	NL

Upstreams

AS Number	Description	Country
AS199236	EMARSYS eMarketing Systems GmbH	AT