What is ASN AS211140?

ASN AS211140 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS211140?

AS211140 is listed under TRANSUNION INTERNATIONAL UK LIMITED.

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?

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AS211140 TRANSUNION INTERNATIONAL UK LIMITED

ASN Lookup Tool

TRANSUNION INTERNATIONAL UK LIMITED transunion.co.uk

GB 9 Routes

AS Data

AS211140

AS211140 – TRANSUNION INTERNATIONAL UK LIMITED

AS Number	211140
AS Name	TRANSUNION-INTERNATIONAL-UK-LIMITED
Organization	TRANSUNION INTERNATIONAL UK LIMITED (org-cl172-ripe)
Country	GB
Website	transunion.co.uk
Number of IPv4 Routes	9
Number of IPv6 Routes	0
ASN type	BUSINESS
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2021-06-18

ASN Intelligence API for production workflows

Use ASN data for AS211140 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
149.255.186.0/24	AS211140	TRANSUNION INTERNATIONAL UK LIMITED	TRANSUNION INTERNATIONAL UK LIMITED	256
149.255.184.0/24	AS211140	TRANSUNION INTERNATIONAL UK LIMITED	Callcredit Limited	256
149.255.187.0/24	AS211140	TRANSUNION INTERNATIONAL UK LIMITED	TRANSUNION INTERNATIONAL UK LIMITED	256
149.255.185.0/24	AS211140	TRANSUNION INTERNATIONAL UK LIMITED	Callcredit Limited	256
149.255.188.0/24	AS211140	TRANSUNION INTERNATIONAL UK LIMITED	TRANSUNION INTERNATIONAL UK LIMITED	256
149.255.189.0/24	AS211140	TRANSUNION INTERNATIONAL UK LIMITED	TRANSUNION INTERNATIONAL UK LIMITED	256
149.255.190.0/24	AS211140	TRANSUNION INTERNATIONAL UK LIMITED	TRANSUNION INTERNATIONAL UK LIMITED	256
149.255.184.0/21	AS211140	TRANSUNION INTERNATIONAL UK LIMITED	Callcredit Limited	2048
149.255.191.0/24	AS211140	TRANSUNION INTERNATIONAL UK LIMITED	TRANSUNION INTERNATIONAL UK LIMITED	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 'AS208189 - AS214345'

as-block:       AS208189 - AS214345
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:        2026-02-12T14:40:05Z
last-modified:  2026-02-12T14:40:05Z
source:         RIPE

% Information related to 'AS211140'

% Abuse contact for 'AS211140' is 'InfrastructureServices@transunion.co.uk'

aut-num:        AS211140
as-name:        TRANSUNION-INTERNATIONAL-UK-LIMITED
org:            ORG-CL172-RIPE
import:         from AS15830 accept ANY
export:         to AS15830 announce AS211140
import:         from AS49425 accept ANY
export:         to AS49425 announce AS211140
admin-c:        dwal-GB
tech-c:         dwal-GB
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CIG-NET-MNT
created:        2021-06-18T10:02:00Z
last-modified:  2021-06-18T10:02:00Z
source:         RIPE

organisation:   ORG-CL172-RIPE
org-name:       TRANSUNION INTERNATIONAL UK LIMITED
country:        GB
org-type:       LIR
address:        One Park Lane
address:        Leeds
address:        LS3 1EP
address:        UNITED KINGDOM
phone:          +441133884300
fax-no:         +441133884308
admin-c:        dwal-GB
admin-c:        MS54574-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        CIG-NET-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CIG-NET-MNT
abuse-c:        ID1604-RIPE
created:        2011-07-22T11:29:09Z
last-modified:  2022-09-13T15:04:32Z
source:         RIPE # Filtered

person:         David Wallis
address:        Callcredit Information Group
address:        One Park Lane
address:        Leeds
address:        LS3 1EP
phone:          +441133884300
nic-hdl:        dwal-GB
mnt-by:         DW36406-MNT
created:        2011-07-22T14:02:37Z
last-modified:  2011-07-22T14:02:37Z
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" : "AS208189 - AS214345",
    "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" : "2026-02-12",
    "date_updated" : "2026-02-12",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS211140",
    "as_name" : "TRANSUNION-INTERNATIONAL-UK-LIMITED",
    "status" : "ASSIGNED",
    "import" : [ "from AS15830 accept ANY", "from AS49425 accept ANY" ],
    "export" : [ "to AS15830 announce AS211140", "to AS49425 announce AS211140" ],
    "organization" : "ORG-CL172-RIPE",
    "admin_contacts" : [ "dwal-GB" ],
    "tech_contacts" : [ "dwal-GB" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "CIG-NET-MNT" ],
    "date_created" : "2021-06-18",
    "date_updated" : "2021-06-18",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-CL172-RIPE",
    "name" : "TRANSUNION INTERNATIONAL UK LIMITED",
    "type" : "LIR",
    "address" : [ "One Park Lane", "Leeds", "LS3 1EP", "UNITED KINGDOM" ],
    "street" : "One Park Lane",
    "city" : "Leeds",
    "zip_code" : "LS3 1EP",
    "country" : [ "GB" ],
    "phone" : [ "+441133884300" ],
    "fax_no" : [ "+441133884308" ],
    "admin_contacts" : [ "dwal-GB", "MS54574-RIPE" ],
    "abuse_contacts" : [ "ID1604-RIPE" ],
    "mnt_ref" : [ "RIPE-NCC-HM-MNT", "CIG-NET-MNT" ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT", "CIG-NET-MNT" ],
    "date_created" : "2011-07-22",
    "date_updated" : "2022-09-13",
    "source" : "RIPE",
    "addressCountry" : "UNITED KINGDOM"
  },
  "administrative_contacts" : [ {
    "handle" : "dwal-GB",
    "name" : "David Wallis",
    "address" : [ "Callcredit Information Group", "One Park Lane", "Leeds", "LS3 1EP" ],
    "street" : "Park Lane",
    "city" : "Leeds",
    "zip_code" : "LS3 1EP",
    "phone" : [ "+441133884300" ],
    "mnt_by" : [ "DW36406-MNT" ],
    "date_created" : "2011-07-22",
    "date_updated" : "2011-07-22",
    "source" : "RIPE"
  } ],
  "technical_contacts" : [ {
    "handle" : "dwal-GB",
    "name" : "David Wallis",
    "address" : [ "Callcredit Information Group", "One Park Lane", "Leeds", "LS3 1EP" ],
    "street" : "Park Lane",
    "city" : "Leeds",
    "zip_code" : "LS3 1EP",
    "phone" : [ "+441133884300" ],
    "mnt_by" : [ "DW36406-MNT" ],
    "date_created" : "2011-07-22",
    "date_updated" : "2011-07-22",
    "source" : "RIPE"
  } ]
}

Peers

AS Number	Description	Country
AS49425	Digital Realty (UK) Limited	GB
AS13335	Cloudflare, Inc.	US
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.	NL
AS49425	Digital Realty UK Limited	GB

Upstreams

AS Number	Description	Country
AS13335	Cloudflare, Inc.	US
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL
AS49425	Digital Realty UK Limited	GB