ASN AS51890 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS51890?

AS51890 is listed under MM Service 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.

AS51890 MM Service GmbH | IPGeolocation.io

ASN Lookup Tool

MM Service GmbH mayr-melnhof.com

AT 5 Routes

AS Data

AS51890

AS51890 – MM Service GmbH

AS Number	51890
AS Name	MAYR-MELNHOF
Organization	MM Service GmbH (org-msg25-ripe)
Country	AT
Website	mayr-melnhof.com
Number of IPv4 Routes	4
Number of IPv6 Routes	1
ASN type	BUSINESS
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2010-11-23

ASN Intelligence API for production workflows

Use ASN data for AS51890 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
185.145.21.0/24	AS51890	MM Service GmbH	MM Service GmbH	256
185.145.20.0/22	AS51890	MM Service GmbH	MM Service GmbH	1024
185.145.20.0/24	AS51890	MM Service GmbH	MM Service GmbH	256
91.213.54.0/24	AS51890	MM Service GmbH	MM Service GmbH	256
2a04:85c0::/29	AS51890	MM Service GmbH	MM Service GmbH	~634×10²⁷

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 'AS51857 - AS52209'

as-block:       AS51857 - AS52209
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:        2024-12-12T14:34:06Z
last-modified:  2024-12-12T14:34:06Z
source:         RIPE

% Information related to 'AS51890'

% Abuse contact for 'AS51890' is 'abuse-noc@mayr-melnhof.com'

aut-num:        AS51890
as-name:        MAYR-MELNHOF
org:            ORG-MSG25-RIPE
import:         from AS3248 accept ANY
import:         from AS3257 accept ANY
export:         to AS3257 announce AS51890
export:         to AS3248 announce AS51890
import:         from AS1764 accept ANY
export:         to AS1764 announce AS51890
import:         from AS8928 accept ANY
export:         to AS8928 announce AS51890
mp-import:      afi ipv6.unicast from AS3248 accept ANY
mp-export:      afi ipv6.unicast to AS3248 announce AS51890
mp-import:      afi ipv6.unicast from AS1764 accept ANY
mp-export:      afi ipv6.unicast to AS1764 announce AS51890
mp-import:      afi ipv6.unicast from AS8928 accept ANY
mp-export:      afi ipv6.unicast to AS8928 announce AS51890
mp-import:      afi ipv6.unicast from AS3257 accept ANY
mp-export:      afi ipv6.unicast to AS3257 announce AS51890
admin-c:        MIN35-RIPE
tech-c:         MIN35-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MAYRMELNHOF-MNT
created:        2010-11-23T16:51:27Z
last-modified:  2021-05-12T11:13:57Z
source:         RIPE

organisation:   ORG-MSG25-RIPE
org-name:       MM Service GmbH
org-type:       LIR
address:        Brahmsplatz 6
address:        1040
address:        Vienna
address:        AUSTRIA
country:        AT
phone:          +4315013691559
admin-c:        MIN35-RIPE
tech-c:         MIN35-RIPE
abuse-c:        AR62965-RIPE
mnt-ref:        MAYRMELNHOF-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MAYRMELNHOF-MNT
created:        2021-04-23T05:52:02Z
last-modified:  2022-03-28T15:18:52Z
source:         RIPE # Filtered

role:           MM IT NOC
address:        Brahmsplatz 6
address:        1040
address:        Vienna
address:        AUSTRIA
phone:          +4315013691559
nic-hdl:        MIN35-RIPE
mnt-by:         MAYRMELNHOF-MNT
created:        2021-04-23T05:52:02Z
last-modified:  2021-04-23T05:52:02Z
source:         RIPE # Filtered

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

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS51857 - AS52209",
    "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" : "2024-12-12",
    "date_updated" : "2024-12-12",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS51890",
    "as_name" : "MAYR-MELNHOF",
    "status" : "ASSIGNED",
    "import" : [ "from AS3248 accept ANY", "from AS3257 accept ANY", "from AS1764 accept ANY", "from AS8928 accept ANY" ],
    "mp_import" : [ "afi ipv6.unicast from AS3248 accept ANY", "afi ipv6.unicast from AS1764 accept ANY", "afi ipv6.unicast from AS8928 accept ANY", "afi ipv6.unicast from AS3257 accept ANY" ],
    "export" : [ "to AS3257 announce AS51890", "to AS3248 announce AS51890", "to AS1764 announce AS51890", "to AS8928 announce AS51890" ],
    "mp_export" : [ "afi ipv6.unicast to AS3248 announce AS51890", "afi ipv6.unicast to AS1764 announce AS51890", "afi ipv6.unicast to AS8928 announce AS51890", "afi ipv6.unicast to AS3257 announce AS51890" ],
    "organization" : "ORG-MSG25-RIPE",
    "admin_contacts" : [ "MIN35-RIPE" ],
    "tech_contacts" : [ "MIN35-RIPE" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "MAYRMELNHOF-MNT" ],
    "date_created" : "2010-11-23",
    "date_updated" : "2021-05-12",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-MSG25-RIPE",
    "name" : "MM Service GmbH",
    "type" : "LIR",
    "address" : [ "Brahmsplatz 6", "1040", "Vienna", "AUSTRIA" ],
    "street" : "Brahmsplatz",
    "city" : "Vienna",
    "zip_code" : "1040",
    "country" : [ "AT" ],
    "phone" : [ "+4315013691559" ],
    "admin_contacts" : [ "MIN35-RIPE" ],
    "tech_contacts" : [ "MIN35-RIPE" ],
    "abuse_contacts" : [ "AR62965-RIPE" ],
    "mnt_ref" : [ "MAYRMELNHOF-MNT" ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT", "MAYRMELNHOF-MNT" ],
    "date_created" : "2021-04-23",
    "date_updated" : "2022-03-28",
    "source" : "RIPE",
    "addressCountry" : "AUSTRIA"
  },
  "administrative_contacts" : [ {
    "handle" : "MIN35-RIPE",
    "name" : "MM IT NOC",
    "address" : [ "Brahmsplatz 6", "1040", "Vienna", "AUSTRIA" ],
    "street" : "Brahmsplatz",
    "city" : "Vienna",
    "zip_code" : "1040",
    "country" : "AUSTRIA",
    "phone" : [ "+4315013691559" ],
    "mnt_by" : [ "MAYRMELNHOF-MNT" ],
    "date_created" : "2021-04-23",
    "date_updated" : "2021-04-23",
    "source" : "RIPE",
    "addressCountry" : "AUSTRIA"
  } ],
  "technical_contacts" : [ {
    "handle" : "MIN35-RIPE",
    "name" : "MM IT NOC",
    "address" : [ "Brahmsplatz 6", "1040", "Vienna", "AUSTRIA" ],
    "street" : "Brahmsplatz",
    "city" : "Vienna",
    "zip_code" : "1040",
    "country" : "AUSTRIA",
    "phone" : [ "+4315013691559" ],
    "mnt_by" : [ "MAYRMELNHOF-MNT" ],
    "date_created" : "2021-04-23",
    "date_updated" : "2021-04-23",
    "source" : "RIPE",
    "addressCountry" : "AUSTRIA"
  } ]
}

Peers

AS Number	Description	Country
AS1764	Next Layer Telekommunikationsdienstleistungs und Beratungs GmbH	AT
AS8928	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US
AS1764	Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH	AT
AS3248	RIPE Network Coordination Centre	NL

Upstreams

AS Number	Description	Country
AS1764	Next Layer Telekommunikationsdienstleistungs und Beratungs GmbH	AT
AS3257	GTT Communications Inc.	US