What is ASN AS152583?

ASN AS152583 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS152583?

AS152583 is listed under TENNDA COMMUNICATION PTE.LTD..

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.

AS152583 TENNDA COMMUNICATION PTE.LTD.

ASN Lookup Tool

TENNDA COMMUNICATION PTE.LTD. tennda.sg

SG 1 Routes

AS Data

AS152583

AS152583 – TENNDA COMMUNICATION PTE.LTD.

AS Number	152583
AS Name	TCP-AS-AP
Organization	TENNDA COMMUNICATION PTE.LTD. (org-tcp1-ap)
Country	SG
Website	tennda.sg
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	ISP
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS152583 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
157.20.80.0/23	AS152583	TENNDA COMMUNICATION PTE.LTD.	TENNDA COMMUNICATION PTE.LTD.	512

Raw Whois Response

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS151866 - AS152889'

as-block:       AS151866 - AS152889
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2023-05-11T00:08:47Z
source:         APNIC

role:           APNIC Hostmaster
address:        6 Cordelia Street
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2013-10-23T04:06:51Z
source:         APNIC

% Information related to 'AS152583'

% Abuse contact for 'AS152583' is 'grace.kwok@tennda.sg'

aut-num:        AS152583
as-name:        TCP-AS-AP
descr:          TENNDA COMMUNICATION PTE.LTD.
country:        SG
org:            ORG-TCP1-AP
admin-c:        TCPA1-AP
tech-c:         TCPA1-AP
abuse-c:        AT1822-AP
mnt-lower:      MAINT-TCP-SG
mnt-routes:     MAINT-TCP-SG
mnt-by:         APNIC-HM
mnt-irt:        IRT-TCP-SG
last-modified:  2024-02-21T00:31:59Z
source:         APNIC

irt:            IRT-TCP-SG
address:        4010 ANG MO KIO AVENUE 10
e-mail:         grace.kwok@tennda.sg
abuse-mailbox:  grace.kwok@tennda.sg
admin-c:        TCPA1-AP
tech-c:         TCPA1-AP
auth:           # Filtered
remarks:        grace.kwok@tennda.sg is invalid
mnt-by:         MAINT-TCP-SG
last-modified:  2025-12-17T13:08:59Z
source:         APNIC

organisation:   ORG-TCP1-AP
org-name:       TENNDA COMMUNICATION PTE.LTD.
org-type:       LIR
country:        SG
address:        4010 ANG MO KIO AVENUE 10 # 04-01A TECHPLACE 1 SINGAPORE
address:        569626
phone:          +6596798246
e-mail:         patrick.lau@tennda.sg
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2024-02-13T13:09:07Z
source:         APNIC

role:           ABUSE TCPSG
country:        ZZ
address:        4010 ANG MO KIO AVENUE 10
phone:          +000000000
e-mail:         grace.kwok@tennda.sg
admin-c:        TCPA1-AP
tech-c:         TCPA1-AP
nic-hdl:        AT1822-AP
remarks:        Generated from irt object IRT-TCP-SG
remarks:        grace.kwok@tennda.sg is invalid
abuse-mailbox:  grace.kwok@tennda.sg
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-17T13:10:21Z
source:         APNIC

role:           TENNDA COMMUNICATION PTELTD administrator
address:        4010 ANG MO KIO AVENUE 10#04-01A TECHPLACE 1 SINGAPORE, 569626, SINGAPORE SINGAPORE 569626
country:        SG
phone:          +6596798246
e-mail:         patrick.lau@tennda.sg
admin-c:        TCPA1-AP
tech-c:         TCPA1-AP
nic-hdl:        TCPA1-AP
mnt-by:         MAINT-TCP-SG
last-modified:  2024-02-21T00:31:15Z
source:         APNIC

% Information related to 'AS151866 - AS152889'

as-block:       AS151866 - AS152889
descr:          APNIC ASN block
admin-c:        IA55-AP
tech-c:         IH123-AP
mnt-by:         MNT-APJII-ID
mnt-lower:      MNT-APJII-ID
last-modified:  2026-02-13T18:14:02Z
source:         IDNIC

role:           ID-NIC ADMINISTRATORS
address:        Indonesian Network Information Center
address:        ID-NIC
address:        Cyber Building 11th Floor
address:        Jakarta 12710
country:        ID
phone:          +62-21-52960634
fax-no:         +62-21-52960635
e-mail:         hostmaster@idnic.net
admin-c:        IH288-AP
tech-c:         IH288-AP
nic-hdl:        IA55-AP
notify:         hostmaster@idnic.net
mnt-by:         MNT-APJII-ID
last-modified:  2026-02-25T04:06:45Z
source:         IDNIC

role:           ID-NIC HOSTMASTERS
address:        Indonesian Network Information Center
address:        ID-NIC
address:        Cyber Building 11th Floor
address:        Jakarta 12710
country:        ID
phone:          +62-21-52960634
fax-no:         +62-21-52960635
e-mail:         hostmaster@idnic.net
remarks:        spam and abuse report : abuse@apjii.or.id
remarks:        technical and routing : support@apjii.or.id
remarks:        administrative request : admin@apjii.or.id
remarks:        IDNIC hostmasters role object
admin-c:        IH1-AP
tech-c:         IH1-AP
nic-hdl:        IH123-AP
notify:         hostmaster@idnic.net
mnt-by:         MNT-APJII-ID
last-modified:  2024-07-10T05:48:59Z
source:         IDNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-UK2)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS151866 - AS152889",
    "description" : [ "APNIC ASN block" ],
    "admin_contacts" : [ "HM20-AP" ],
    "tech_contacts" : [ "HM20-AP" ],
    "remarks" : [ "These AS numbers are further assigned by APNIC", "to APNIC members and end-users in the APNIC region" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "APNIC-HM" ],
    "date_updated" : "2023-05-11",
    "source" : "APNIC"
  }, {
    "as_block" : "AS151866 - AS152889",
    "description" : [ "APNIC ASN block" ],
    "admin_contacts" : [ "IA55-AP" ],
    "tech_contacts" : [ "IH123-AP" ],
    "mnt_by" : [ "MNT-APJII-ID" ],
    "mnt_lower" : [ "MNT-APJII-ID" ],
    "date_updated" : "2026-02-13",
    "source" : "IDNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS152583",
    "as_name" : "TCP-AS-AP",
    "description" : [ "TENNDA COMMUNICATION PTE.LTD." ],
    "country" : "SG",
    "organization" : "ORG-TCP1-AP",
    "admin_contacts" : [ "TCPA1-AP" ],
    "tech_contacts" : [ "TCPA1-AP" ],
    "abuse_contacts" : [ "AT1822-AP" ],
    "mnt_irt" : [ "IRT-TCP-SG" ],
    "mnt_lower" : [ "MAINT-TCP-SG" ],
    "mnt_routes" : [ "MAINT-TCP-SG" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2024-02-21",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-TCP-SG",
    "address" : [ "4010 ANG MO KIO AVENUE 10" ],
    "street" : "Ang Mo Kio Avenue 10",
    "email" : [ "grace.kwok@tennda.sg" ],
    "abuse_mailbox" : [ "grace.kwok@tennda.sg" ],
    "admin_contacts" : [ "TCPA1-AP" ],
    "tech_contacts" : [ "TCPA1-AP" ],
    "remarks" : [ "grace.kwok@tennda.sg is invalid" ],
    "mnt_by" : [ "MAINT-TCP-SG" ],
    "date_updated" : "2025-12-17",
    "source" : "APNIC"
  },
  "organization" : {
    "handle" : "ORG-TCP1-AP",
    "name" : "TENNDA COMMUNICATION PTE.LTD.",
    "type" : "LIR",
    "address" : [ "4010 ANG MO KIO AVENUE 10 # 04-01A TECHPLACE 1 SINGAPORE", "569626" ],
    "street" : "Techplace 1",
    "city" : "Singapore",
    "zip_code" : "569626",
    "country" : [ "SG" ],
    "email" : [ "patrick.lau@tennda.sg" ],
    "phone" : [ "+6596798246" ],
    "mnt_ref" : [ "APNIC-HM" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2024-02-13",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "TCPA1-AP",
    "name" : "TENNDA COMMUNICATION PTELTD administrator",
    "address" : [ "4010 ANG MO KIO AVENUE 10#04-01A TECHPLACE 1 SINGAPORE, 569626, SINGAPORE SINGAPORE 569626" ],
    "street" : "Techplace 1",
    "city" : "Singapore",
    "zip_code" : "569626",
    "country" : "SG",
    "email" : [ "patrick.lau@tennda.sg" ],
    "phone" : [ "+6596798246" ],
    "admin_contacts" : [ "TCPA1-AP" ],
    "tech_contacts" : [ "TCPA1-AP" ],
    "mnt_by" : [ "MAINT-TCP-SG" ],
    "date_updated" : "2024-02-21",
    "source" : "APNIC",
    "addressCountry" : "SINGAPORE"
  } ],
  "technical_contacts" : [ {
    "handle" : "TCPA1-AP",
    "name" : "TENNDA COMMUNICATION PTELTD administrator",
    "address" : [ "4010 ANG MO KIO AVENUE 10#04-01A TECHPLACE 1 SINGAPORE, 569626, SINGAPORE SINGAPORE 569626" ],
    "street" : "Techplace 1",
    "city" : "Singapore",
    "zip_code" : "569626",
    "country" : "SG",
    "email" : [ "patrick.lau@tennda.sg" ],
    "phone" : [ "+6596798246" ],
    "admin_contacts" : [ "TCPA1-AP" ],
    "tech_contacts" : [ "TCPA1-AP" ],
    "mnt_by" : [ "MAINT-TCP-SG" ],
    "date_updated" : "2024-02-21",
    "source" : "APNIC",
    "addressCountry" : "SINGAPORE"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AT1822-AP",
    "name" : "ABUSE TCPSG",
    "address" : [ "4010 ANG MO KIO AVENUE 10" ],
    "street" : "Ang Mo Kio Avenue 10",
    "country" : "ZZ",
    "email" : [ "grace.kwok@tennda.sg" ],
    "abuse_mailbox" : [ "grace.kwok@tennda.sg" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "TCPA1-AP" ],
    "tech_contacts" : [ "TCPA1-AP" ],
    "remarks" : [ "Generated from irt object IRT-TCP-SG", "grace.kwok@tennda.sg is invalid" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2025-12-17",
    "source" : "APNIC"
  } ]
}

Peers

AS Number	Description	Country
AS136897	Enjoyvc Cloud Group Limited.	HK

Upstreams

AS Number	Description	Country
AS136897	Enjoyvc Cloud Group Limited.	HK

Contacts

Email Contacts

hostmaster@idnic.net patrick.lau@tennda.sg grace.kwok@tennda.sg

Abuse Contacts

grace.kwok@tennda.sg