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.

AS35299 C2k | IPGeolocation.io

Q: Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

ASN Lookup Tool

C2k bt.net

GB 1 Routes

AS Data

AS35299

AS35299 – C2k

AS Number	35299
AS Name	ASC2k
Organization	C2k (org-ca744-ripe)
Country	GB
Website	bt.net
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	ISP
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2005-07-11

ASN Intelligence API for production workflows

Use ASN data for AS35299 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
85.31.136.0/21	AS35299	C2k	C2k	2048

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 'AS35252 - AS35618'

as-block:       AS35252 - AS35618
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:        2024-05-01T14:06:15Z
last-modified:  2024-05-01T14:06:15Z
source:         RIPE

% Information related to 'AS35299'

% Abuse contact for 'AS35299' is 'ripe@c2kni.org.uk'

aut-num:        AS35299
as-name:        ASC2k
descr:          Classroom 2000
import:         from AS2856 accept ANY
import:         from AS786 accept AS786
import:         from AS1273 accept ANY
export:         to AS2856 announce AS35299
export:         to AS786 announce AS35299
export:         to AS1273 announce AS35299
org:            ORG-CA744-RIPE
admin-c:        JM2721-RIPE
tech-c:         JM2721-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         TE-MNT
created:        2005-07-11T14:55:58Z
last-modified:  2024-08-30T10:00:14Z
source:         RIPE # Filtered

organisation:   ORG-CA744-RIPE
org-name:       C2k
country:        GB
org-type:       LIR
address:        LANYON PLACE 9
address:        BT1 3FJ
address:        BELFAST
address:        IRELAND
phone:          +44 28 90279009
fax-no:         +44 28 90279017
abuse-c:        AR17542-RIPE
admin-c:        JM2721-RIPE
admin-c:        AM8141-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        TE-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         TE-MNT
created:        2005-07-05T05:11:08Z
last-modified:  2024-08-30T10:00:16Z
source:         RIPE # Filtered

person:         Jayne McIlgorm
address:        Western Education and Library Board
address:        C2K
address:        Forth Floor
address:        9, Lanyon Place
address:        Belfast
address:        BT1 3FJ
address:        GB
phone:          +44 28 9027 9009
nic-hdl:        JM2721-RIPE
remarks:        Please send abuse notification to abuse@bt.net
created:        2003-08-20T16:13:29Z
last-modified:  2016-04-06T08:03:01Z
mnt-by:         RIPE-NCC-LOCKED-MNT
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" : "AS35252 - AS35618",
    "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" : "2024-05-01",
    "date_updated" : "2024-05-01",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS35299",
    "as_name" : "ASC2k",
    "description" : [ "Classroom 2000" ],
    "status" : "ASSIGNED",
    "import" : [ "from AS2856 accept ANY", "from AS786 accept AS786", "from AS1273 accept ANY" ],
    "export" : [ "to AS2856 announce AS35299", "to AS786 announce AS35299", "to AS1273 announce AS35299" ],
    "organization" : "ORG-CA744-RIPE",
    "admin_contacts" : [ "JM2721-RIPE" ],
    "tech_contacts" : [ "JM2721-RIPE" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "TE-MNT" ],
    "date_created" : "2005-07-11",
    "date_updated" : "2024-08-30",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-CA744-RIPE",
    "name" : "C2k",
    "type" : "LIR",
    "address" : [ "LANYON PLACE 9", "BT1 3FJ", "BELFAST", "IRELAND" ],
    "district" : "Belfast",
    "zip_code" : "BT1 3FJ",
    "country" : [ "GB" ],
    "phone" : [ "+44 28 90279009" ],
    "fax_no" : [ "+44 28 90279017" ],
    "admin_contacts" : [ "JM2721-RIPE", "AM8141-RIPE" ],
    "abuse_contacts" : [ "AR17542-RIPE" ],
    "mnt_ref" : [ "RIPE-NCC-HM-MNT", "TE-MNT" ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT", "TE-MNT" ],
    "date_created" : "2005-07-05",
    "date_updated" : "2024-08-30",
    "source" : "RIPE",
    "addressCountry" : "IRELAND"
  },
  "administrative_contacts" : [ {
    "handle" : "JM2721-RIPE",
    "name" : "Jayne McIlgorm",
    "address" : [ "Western Education and Library Board", "C2K", "Forth Floor", "9, Lanyon Place", "Belfast", "BT1 3FJ", "GB" ],
    "street" : "Lanyon Place",
    "city" : "Belfast",
    "zip_code" : "BT1 3FJ",
    "country" : "GB",
    "phone" : [ "+44 28 9027 9009" ],
    "remarks" : [ "Please send abuse notification to abuse@bt.net" ],
    "mnt_by" : [ "RIPE-NCC-LOCKED-MNT" ],
    "date_created" : "2003-08-20",
    "date_updated" : "2016-04-06",
    "source" : "RIPE",
    "addressCountry" : "GB"
  } ],
  "technical_contacts" : [ {
    "handle" : "JM2721-RIPE",
    "name" : "Jayne McIlgorm",
    "address" : [ "Western Education and Library Board", "C2K", "Forth Floor", "9, Lanyon Place", "Belfast", "BT1 3FJ", "GB" ],
    "street" : "Lanyon Place",
    "city" : "Belfast",
    "zip_code" : "BT1 3FJ",
    "country" : "GB",
    "phone" : [ "+44 28 9027 9009" ],
    "remarks" : [ "Please send abuse notification to abuse@bt.net" ],
    "mnt_by" : [ "RIPE-NCC-LOCKED-MNT" ],
    "date_created" : "2003-08-20",
    "date_updated" : "2016-04-06",
    "source" : "RIPE",
    "addressCountry" : "GB"
  } ]
}

Peers

AS Number	Description	Country
AS2856	British Telecommunications PLC	GB
AS1273	Vodafone Group PLC	NL
AS786	Jisc Services Limited	GB
AS5466	Eircom Limited	IE

Upstreams

AS Number	Description	Country
AS5466	Eircom Limited	IE

Frequently Asked Questions

What is ASN AS35299?

ASN AS35299 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS35299?

AS35299 is listed under C2k.

What do peers, upstreams, and downstreams mean?

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 included here?

WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.