ASN AS51845 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS51845?

AS51845 is listed under WATERSTONS 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?

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.

AS51845 WATERSTONS LIMITED | IPGeolocation.io

ASN Lookup Tool

WATERSTONS LIMITED cogentco.com

GB 2 Routes

AS Data

AS51845

AS51845 – WATERSTONS LIMITED

AS Number	51845
AS Name	WATERSTONS-AS
Organization	WATERSTONS LIMITED (org-wl54-ripe)
Country	GB
Website	cogentco.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2010-11-15

ASN Intelligence API for production workflows

Use ASN data for AS51845 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
154.61.35.0/24	AS51845	WATERSTONS LIMITED	Waterstons	256
91.220.118.0/24	AS51845	WATERSTONS LIMITED	WATERSTONS 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 'AS51845 - AS51855'

as-block:       AS51845 - AS51855
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:        2026-02-02T15:31:00Z
last-modified:  2026-02-02T15:31:00Z
source:         RIPE

% Information related to 'AS51845'

% Abuse contact for 'AS51845' is 'abuse@cogentco.com'

aut-num:        AS51845
as-name:        WATERSTONS-AS
org:            ORG-WL54-RIPE
import:         from AS174 accept any
export:         to AS174 announce AS51845
import:         from AS6067 accept any
export:         to AS6067 announce AS51845
admin-c:        GH4695-RIPE
tech-c:         GH4695-RIPE
tech-c:         IC2003-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         COGENT-HM-MNT
created:        2010-11-15T14:08:30Z
last-modified:  2018-09-04T10:55:57Z
source:         RIPE
sponsoring-org: ORG-GATI1-RIPE

organisation:   ORG-WL54-RIPE
org-name:       WATERSTONS LIMITED
country:        GB
org-type:       OTHER
address:        Waterstons Limited
address:        Liddon Court
address:        Aykley Heads
address:        DH1 5TS, Durham, GB
phone:          +44 845 094 0944
abuse-c:        AR27633-RIPE
admin-c:        GH4695-RIPE
tech-c:         GH4695-RIPE
tech-c:         IC2003-RIPE
mnt-ref:        COGENT-HM-MNT
mnt-by:         COGENT-HM-MNT
created:        2010-10-12T12:05:59Z
last-modified:  2022-12-01T16:59:16Z
source:         RIPE # Filtered

person:         George Hewitt
address:        Waterstons Limited
address:        Liddon Court
address:        Aykley Heads
address:        DH1 5TS, Durham, GB
phone:          +44 845 094 0944
nic-hdl:        GH4695-RIPE
mnt-by:         COGENT-HM-MNT
created:        2017-04-12T12:24:45Z
last-modified:  2019-02-01T16:03:15Z
source:         RIPE # Filtered

person:         Ian Craggs
address:        Waterstons Limited
address:        Liddon Court
address:        Aykley Heads
address:        DH1 5TS, Durham, GB
phone:          +44 845 094 0944
nic-hdl:        IC2003-RIPE
mnt-by:         COGENT-HM-MNT
created:        2010-10-12T12:04:09Z
last-modified:  2019-02-01T16:03:15Z
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" : "AS51845 - AS51855",
    "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" : "2026-02-02",
    "date_updated" : "2026-02-02",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS51845",
    "as_name" : "WATERSTONS-AS",
    "status" : "ASSIGNED",
    "import" : [ "from AS174 accept any", "from AS6067 accept any" ],
    "export" : [ "to AS174 announce AS51845", "to AS6067 announce AS51845" ],
    "organization" : "ORG-WL54-RIPE",
    "sponsoring_organization" : "ORG-GATI1-RIPE",
    "admin_contacts" : [ "GH4695-RIPE" ],
    "tech_contacts" : [ "GH4695-RIPE", "IC2003-RIPE" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "RIPE-NCC-END-MNT", "COGENT-HM-MNT" ],
    "date_created" : "2010-11-15",
    "date_updated" : "2018-09-04",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-WL54-RIPE",
    "name" : "WATERSTONS LIMITED",
    "type" : "OTHER",
    "address" : [ "Waterstons Limited", "Liddon Court", "Aykley Heads", "DH1 5TS, Durham, GB" ],
    "street" : "Liddon Court",
    "city" : "Durham",
    "zip_code" : "DH1 5TS",
    "country" : [ "GB" ],
    "phone" : [ "+44 845 094 0944" ],
    "admin_contacts" : [ "GH4695-RIPE" ],
    "tech_contacts" : [ "GH4695-RIPE", "IC2003-RIPE" ],
    "abuse_contacts" : [ "AR27633-RIPE" ],
    "mnt_ref" : [ "COGENT-HM-MNT" ],
    "mnt_by" : [ "COGENT-HM-MNT" ],
    "date_created" : "2010-10-12",
    "date_updated" : "2022-12-01",
    "source" : "RIPE",
    "addressCountry" : "GB"
  },
  "administrative_contacts" : [ {
    "handle" : "GH4695-RIPE",
    "name" : "George Hewitt",
    "address" : [ "Waterstons Limited", "Liddon Court", "Aykley Heads", "DH1 5TS, Durham, GB" ],
    "street" : "Liddon Court",
    "city" : "Durham",
    "zip_code" : "DH1 5TS",
    "country" : "GB",
    "phone" : [ "+44 845 094 0944" ],
    "mnt_by" : [ "COGENT-HM-MNT" ],
    "date_created" : "2017-04-12",
    "date_updated" : "2019-02-01",
    "source" : "RIPE",
    "addressCountry" : "GB"
  } ],
  "technical_contacts" : [ {
    "handle" : "GH4695-RIPE",
    "name" : "George Hewitt",
    "address" : [ "Waterstons Limited", "Liddon Court", "Aykley Heads", "DH1 5TS, Durham, GB" ],
    "street" : "Liddon Court",
    "city" : "Durham",
    "zip_code" : "DH1 5TS",
    "country" : "GB",
    "phone" : [ "+44 845 094 0944" ],
    "mnt_by" : [ "COGENT-HM-MNT" ],
    "date_created" : "2017-04-12",
    "date_updated" : "2019-02-01",
    "source" : "RIPE",
    "addressCountry" : "GB"
  }, {
    "handle" : "IC2003-RIPE",
    "name" : "Ian Craggs",
    "address" : [ "Waterstons Limited", "Liddon Court", "Aykley Heads", "DH1 5TS, Durham, GB" ],
    "street" : "Liddon Court",
    "city" : "Durham",
    "zip_code" : "DH1 5TS",
    "country" : "GB",
    "phone" : [ "+44 845 094 0944" ],
    "mnt_by" : [ "COGENT-HM-MNT" ],
    "date_created" : "2010-10-12",
    "date_updated" : "2019-02-01",
    "source" : "RIPE",
    "addressCountry" : "GB"
  } ]
}

Peers

AS Number	Description	Country
AS12703	Pulsant (Scotland) Ltd	GB
AS6067	Pulsant Onyx Group	ZZ
AS12703	Pulsant Scotland Ltd	GB
AS1239	Cogent Communications, LLC	US
AS2914	NTT America, Inc.	US
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS12703	Pulsant Scotland Ltd	GB
AS2914	NTT America, Inc.	US
AS174	Cogent Communications, LLC	US