ASN AS51351 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS51351?

AS51351 is listed under Classwire 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.

AS51351 Classwire Limited | IPGeolocation.io

ASN Lookup Tool

Classwire Limited classwire.xyz

CY 5 Routes

AS Data

AS51351

AS51351 – Classwire Limited

AS Number	51351
AS Name	CLASSWIRE-AS
Organization	Classwire Limited (org-cl634-ripe)
Country	CY
Website	classwire.xyz
Number of IPv4 Routes	4
Number of IPv6 Routes	1
ASN type	BUSINESS
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2021-07-15

ASN Intelligence API for production workflows

Use ASN data for AS51351 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
164.138.96.0/24	AS51351	Classwire Limited	Classwire Limited	256
2a11:ec07::/32	AS51351	Classwire Limited	Classwire Limited	~79×10²⁷
164.138.97.0/24	AS51351	Classwire Limited	Classwire Limited	256
194.31.10.0/24	AS51351	Classwire Limited	Classwire Limited	256
164.138.98.0/24	AS51351	Classwire Limited	Classwire 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 'AS51313 - AS51355'

as-block:       AS51313 - AS51355
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:        2024-12-10T14:54:30Z
last-modified:  2024-12-10T14:54:30Z
source:         RIPE

% Information related to 'AS51351'

% Abuse contact for 'AS51351' is 'abuse@classwire.xyz'

aut-num:        AS51351
as-name:        CLASSWIRE-AS
org:            ORG-CL634-RIPE
import:         from AS20473 accept any
export:         to AS20473 announce AS51351
import:         from AS262254 accept ANY
export:         to AS262254 announce AS51351
import:         from AS7979 accept ANY
export:         to AS7979 announce AS51351
admin-c:        NK4684-RIPE
tech-c:         NK4684-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         lir-cy-classwire-1-MNT
created:        2021-07-15T06:53:29Z
last-modified:  2025-10-01T12:39:30Z
source:         RIPE
abuse-c:        NK4684-RIPE
remarks:        Please report abuse to "abuse@classwire.xyz"

organisation:   ORG-CL634-RIPE
org-name:       Classwire Limited
country:        CY
org-type:       LIR
address:        3A Athos Street
address:        CY 1087
address:        Nicosia
address:        CYPRUS
phone:          +34689050633
admin-c:        NK5382-RIPE
tech-c:         NK5382-RIPE
abuse-c:        AR63604-RIPE
mnt-ref:        lir-cy-classwire-1-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         lir-cy-classwire-1-MNT
created:        2021-07-12T10:48:24Z
last-modified:  2025-10-01T13:16:12Z
source:         RIPE # Filtered

role:           Nikolai Kristin
org:            ORG-CL634-RIPE
address:        CYPRUS
address:        Nicosia
address:        CY 1087
address:        3A Athos Street
phone:          +34689050633
nic-hdl:        NK4684-RIPE
mnt-by:         lir-cy-classwire-1-MNT
created:        2021-07-12T10:48:23Z
last-modified:  2025-10-01T16:17:56Z
source:         RIPE # Filtered
abuse-mailbox:  abuse@classwire.xyz

% 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" : "AS51313 - AS51355",
    "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" : "2024-12-10",
    "date_updated" : "2024-12-10",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS51351",
    "as_name" : "CLASSWIRE-AS",
    "status" : "ASSIGNED",
    "import" : [ "from AS20473 accept any", "from AS262254 accept ANY", "from AS7979 accept ANY" ],
    "export" : [ "to AS20473 announce AS51351", "to AS262254 announce AS51351", "to AS7979 announce AS51351" ],
    "organization" : "ORG-CL634-RIPE",
    "admin_contacts" : [ "NK4684-RIPE" ],
    "tech_contacts" : [ "NK4684-RIPE" ],
    "abuse_contacts" : [ "NK4684-RIPE" ],
    "remarks" : [ "Please report abuse to \"abuse@classwire.xyz\"" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "lir-cy-classwire-1-MNT" ],
    "date_created" : "2021-07-15",
    "date_updated" : "2025-10-01",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-CL634-RIPE",
    "name" : "Classwire Limited",
    "type" : "LIR",
    "address" : [ "3A Athos Street", "CY 1087", "Nicosia", "CYPRUS" ],
    "street" : "Athos Street Cy",
    "city" : "Nicosia",
    "zip_code" : "1087",
    "country" : [ "CY" ],
    "phone" : [ "+34689050633" ],
    "admin_contacts" : [ "NK5382-RIPE" ],
    "tech_contacts" : [ "NK5382-RIPE" ],
    "abuse_contacts" : [ "AR63604-RIPE" ],
    "mnt_ref" : [ "lir-cy-classwire-1-MNT" ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT", "lir-cy-classwire-1-MNT" ],
    "date_created" : "2021-07-12",
    "date_updated" : "2025-10-01",
    "source" : "RIPE",
    "addressCountry" : "CYPRUS"
  },
  "administrative_contacts" : [ {
    "handle" : "NK4684-RIPE",
    "name" : "Nikolai Kristin",
    "address" : [ "CYPRUS", "Nicosia", "CY 1087", "3A Athos Street" ],
    "street" : "Athos Street",
    "city" : "Nicosia",
    "zip_code" : "1087",
    "country" : "CY",
    "abuse_mailbox" : [ "abuse@classwire.xyz" ],
    "phone" : [ "+34689050633" ],
    "organizations" : [ "ORG-CL634-RIPE" ],
    "mnt_by" : [ "lir-cy-classwire-1-MNT" ],
    "date_created" : "2021-07-12",
    "date_updated" : "2025-10-01",
    "source" : "RIPE",
    "addressCountry" : "CY"
  } ],
  "technical_contacts" : [ {
    "handle" : "NK4684-RIPE",
    "name" : "Nikolai Kristin",
    "address" : [ "CYPRUS", "Nicosia", "CY 1087", "3A Athos Street" ],
    "street" : "Athos Street",
    "city" : "Nicosia",
    "zip_code" : "1087",
    "country" : "CY",
    "abuse_mailbox" : [ "abuse@classwire.xyz" ],
    "phone" : [ "+34689050633" ],
    "organizations" : [ "ORG-CL634-RIPE" ],
    "mnt_by" : [ "lir-cy-classwire-1-MNT" ],
    "date_created" : "2021-07-12",
    "date_updated" : "2025-10-01",
    "source" : "RIPE",
    "addressCountry" : "CY"
  } ],
  "abuse_contacts" : [ {
    "handle" : "NK4684-RIPE",
    "name" : "Nikolai Kristin",
    "address" : [ "CYPRUS", "Nicosia", "CY 1087", "3A Athos Street" ],
    "street" : "Athos Street",
    "city" : "Nicosia",
    "zip_code" : "1087",
    "country" : "CY",
    "abuse_mailbox" : [ "abuse@classwire.xyz" ],
    "phone" : [ "+34689050633" ],
    "organizations" : [ "ORG-CL634-RIPE" ],
    "mnt_by" : [ "lir-cy-classwire-1-MNT" ],
    "date_created" : "2021-07-12",
    "date_updated" : "2025-10-01",
    "source" : "RIPE",
    "addressCountry" : "CY"
  } ]
}

Peers

AS Number	Description	Country
AS52025	ParadoxNetworks Limited	GB
AS262254
AS20473	The Constant Company, LLC	US
AS212895	Johannes Ernst	DE
AS7979	Servers.com, Inc.	US

Upstreams

AS Number	Description	Country
AS20473	The Constant Company, LLC	US
AS212895	Johannes Ernst	DE