ASN AS1754 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS1754?

AS1754 is listed under Deutsches Elektronen Synchrotron DESY.

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.

AS1754 Deutsches Elektronen Synchrotron DESY

ASN Lookup Tool

Deutsches Elektronen Synchrotron DESY desy.de

DE 4 Routes

AS Data

AS1754

AS1754 – Deutsches Elektronen Synchrotron DESY

AS Number	1754
AS Name	DESY-HAMBURG
Organization	Deutsches Elektronen Synchrotron DESY (org-ded2-ripe)
Country	DE
Website	desy.de
Number of IPv4 Routes	4
Number of IPv6 Routes	0
ASN type	EDUCATION
Allocation Status	LEGACY
Registry	RIPE
Date Allocated	2001-10-18

ASN Intelligence API for production workflows

Use ASN data for AS1754 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
192.109.31.0/24	AS1754	Deutsches Elektronen Synchrotron DESY	European Molecular Biology Laboratory	256
141.34.0.0/16	AS1754	Deutsches Elektronen Synchrotron DESY	Deutsches Elektronen-Synchrotron DESY	65536
192.76.172.0/24	AS1754	Deutsches Elektronen Synchrotron DESY	Deutsches Elektronen-Synchrotron DESY	256
131.169.0.0/16	AS1754	Deutsches Elektronen Synchrotron DESY	Deutsches Elektronen-Synchrotron DESY	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 'AS1754 - AS1756'

as-block:       AS1754 - AS1756
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:        2018-11-22T15:27:12Z
last-modified:  2018-11-22T15:27:12Z
source:         RIPE

% Information related to 'AS1754'

% Abuse contact for 'AS1754' is 'noc@desy.de'

aut-num:        AS1754
as-name:        DESY-HAMBURG
import:         from AS513
                action pref=100;
                accept AS513 AS559 AS789 AS777 AS2038 AS2060 AS2875 AS2598 AS3208 AS137
import:         from AS1275
                action pref=100;
                accept ANY
import:         from AS1275
                action pref=90;
                accept AS559
import:         from AS2683
                action pref=90;
                accept AS2683 AS2148 AS2643 AS3058
import:         from AS1895
                action pref=100;
                accept AS1895
import:         from AS513
                action pref=100;
                accept AS-EBONE
import:         from AS513
                action pref=110;
                accept AS-EMPB
export:         to AS513
                announce AS1754
export:         to AS1275
                announce AS1754
export:         to AS2683
                announce AS1754
export:         to AS2148
                announce AS1754
export:         to AS1895
                announce AS1754 AS513 AS789 AS777 AS2038 AS2060 AS2875 AS2598 AS3208 AS137
default:        to AS513
                action pref=20;
                networks ANY
default:        to AS1275
                action pref=10;
                networks ANY
admin-c:        ZD55-ARIN
tech-c:         ZD55-ARIN
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-by:         DFN-HM-MNT
created:        2001-10-18T11:36:26Z
last-modified:  2016-04-14T08:40:16Z
source:         RIPE
org:            ORG-DED2-RIPE
sponsoring-org: ORG-DV1-RIPE

organisation:   ORG-DED2-RIPE
org-name:       Deutsches Elektronen-Synchrotron DESY
country:        DE
reg-nr:         Not Applicable
org-type:       OTHER
address:        Notkestr. 85
address:        22607 Hamburg
address:        Germany
admin-c:        KO1389-RIPE
tech-c:         ZD55-ARIN
abuse-c:        ZD55-ARIN
mnt-ref:        DFN-LIR-MNT
mnt-by:         DFN-LIR-MNT
created:        2015-04-07T09:13:02Z
last-modified:  2026-05-13T05:51:51Z
source:         RIPE # Filtered

role:           Network Operating Center DESY
address:        DESY
address:        Notkestr. 85
address:        22607 Hamburg
address:        Germany
phone:          +49 40 8998 4568
phone:          +49 40 8998 3313
fax-no:         +49 40 8994 3313
admin-c:        KO1389-RIPE
tech-c:         TW36-RIPE
abuse-mailbox:  noc@desy.de
nic-hdl:        ZD55-ARIN
mnt-by:         DFN-NTFY
created:        2001-10-12T13:05:48Z
last-modified:  2015-04-15T10:49:20Z
source:         RIPE # Filtered

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

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS1754 - AS1756",
    "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" : "AS1754",
    "as_name" : "DESY-HAMBURG",
    "status" : "LEGACY",
    "import" : [ "from AS513", "from AS1275", "from AS1275", "from AS2683", "from AS1895", "from AS513", "from AS513" ],
    "export" : [ "to AS513", "to AS1275", "to AS2683", "to AS2148", "to AS1895" ],
    "default" : [ "to AS513", "to AS1275" ],
    "organization" : "ORG-DED2-RIPE",
    "sponsoring_organization" : "ORG-DV1-RIPE",
    "admin_contacts" : [ "ZD55-ARIN" ],
    "tech_contacts" : [ "ZD55-ARIN" ],
    "mnt_by" : [ "RIPE-NCC-LEGACY-MNT", "DFN-HM-MNT" ],
    "date_created" : "2001-10-18",
    "date_updated" : "2016-04-14",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-DED2-RIPE",
    "name" : "Deutsches Elektronen-Synchrotron DESY",
    "type" : "OTHER",
    "address" : [ "Notkestr. 85", "22607 Hamburg", "Germany" ],
    "street" : "Notkestr.",
    "city" : "Hamburg",
    "zip_code" : "22607",
    "country" : [ "DE" ],
    "admin_contacts" : [ "KO1389-RIPE" ],
    "tech_contacts" : [ "ZD55-ARIN" ],
    "abuse_contacts" : [ "ZD55-ARIN" ],
    "mnt_ref" : [ "DFN-LIR-MNT" ],
    "mnt_by" : [ "DFN-LIR-MNT" ],
    "date_created" : "2015-04-07",
    "date_updated" : "2026-05-13",
    "source" : "RIPE",
    "addressCountry" : "GERMANY"
  },
  "administrative_contacts" : [ {
    "handle" : "ZD55-ARIN",
    "name" : "Network Operating Center DESY",
    "address" : [ "DESY", "Notkestr. 85", "22607 Hamburg", "Germany" ],
    "street" : "Desy Notkestr.",
    "city" : "Hamburg",
    "zip_code" : "22607",
    "country" : "GERMANY",
    "abuse_mailbox" : [ "noc@desy.de" ],
    "phone" : [ "+49 40 8998 4568", "+49 40 8998 3313" ],
    "fax_no" : [ "+49 40 8994 3313" ],
    "admin_contacts" : [ "KO1389-RIPE" ],
    "tech_contacts" : [ "TW36-RIPE" ],
    "mnt_by" : [ "DFN-NTFY" ],
    "date_created" : "2001-10-12",
    "date_updated" : "2015-04-15",
    "source" : "RIPE",
    "addressCountry" : "GERMANY"
  } ],
  "technical_contacts" : [ {
    "handle" : "ZD55-ARIN",
    "name" : "Network Operating Center DESY",
    "address" : [ "DESY", "Notkestr. 85", "22607 Hamburg", "Germany" ],
    "street" : "Desy Notkestr.",
    "city" : "Hamburg",
    "zip_code" : "22607",
    "country" : "GERMANY",
    "abuse_mailbox" : [ "noc@desy.de" ],
    "phone" : [ "+49 40 8998 4568", "+49 40 8998 3313" ],
    "fax_no" : [ "+49 40 8994 3313" ],
    "admin_contacts" : [ "KO1389-RIPE" ],
    "tech_contacts" : [ "TW36-RIPE" ],
    "mnt_by" : [ "DFN-NTFY" ],
    "date_created" : "2001-10-12",
    "date_updated" : "2015-04-15",
    "source" : "RIPE",
    "addressCountry" : "GERMANY"
  } ]
}

Peers

AS Number	Description	Country
AS2148	National Research Center Kurchatov Institute	RU
AS1895	Friedrich Alexander Universitaet Erlangen Nuernberg	DE
AS513	CERN European Organization for Nuclear Research	CH
AS680	Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	DE
AS1275	DFN IP service and DFN customer networks	DE
AS2683	MSU	RU