What is ASN AS151212?

ASN AS151212 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS151212?

AS151212 is listed under Calapan Telephone System Inc..

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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AS151212 Calapan Telephone System Inc.

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Legacy Routes

Calapan Telephone System Inc. apjii.or.id

PH 0 Routes

AS Data

AS151212

AS151212 – Calapan Telephone System Inc.

AS Number	151212
AS Name	CATSI-AS-AP
Organization	Calapan Telephone System Inc.(org-ctsi4-ap)
Country	PH
Website	apjii.or.id
Number of IPv4 Routes	0
Number of IPv6 Routes	0
ASN type	ISP
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS151212 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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Raw Whois Response

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

% Information related to 'AS150842 - AS151865'

as-block:       AS150842 - AS151865
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:  2021-10-13T00:52:11Z
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 'AS151212'

% Abuse contact for 'AS151212' is 'catsi1958@yahoo.com'

aut-num:        AS151212
as-name:        CATSI-AS-AP
descr:          Calapan Telephone System Inc.
country:        PH
org:            ORG-CTSI4-AP
admin-c:        CTSI3-AP
tech-c:         CTSI3-AP
abuse-c:        AC2680-AP
mnt-lower:      MAINT-CATSI-PH
mnt-routes:     MAINT-CATSI-PH
mnt-by:         APNIC-HM
mnt-irt:        IRT-CATSI-PH
last-modified:  2023-07-06T17:30:20Z
source:         APNIC

irt:            IRT-CATSI-PH
address:        Catsi Business Center G/F CM Corporate Center, Block 5 Sta. Maria Village, calapan city oriental mindoro 5200
e-mail:         catsi1958@yahoo.com
abuse-mailbox:  catsi1958@yahoo.com
admin-c:        CTSI3-AP
tech-c:         CTSI3-AP
auth:           # Filtered
remarks:        catsi1958@yahoo.com is invalid
mnt-by:         MAINT-CATSI-PH
last-modified:  2025-11-18T00:36:55Z
source:         APNIC

organisation:   ORG-CTSI4-AP
org-name:       Calapan Telephone System Inc.
org-type:       LIR
country:        PH
address:        Catsi Business Center G/F CM Corporate Center
address:        Block 5 Sta. Maria Village
phone:          +639178258777
e-mail:         wils_diner@yahoo.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:19:15Z
source:         APNIC

role:           ABUSE CATSIPH
country:        ZZ
address:        Catsi Business Center G/F CM Corporate Center, Block 5 Sta. Maria Village, calapan city oriental mindoro 5200
phone:          +000000000
e-mail:         catsi1958@yahoo.com
admin-c:        CTSI3-AP
tech-c:         CTSI3-AP
nic-hdl:        AC2680-AP
remarks:        Generated from irt object IRT-CATSI-PH
remarks:        catsi1958@yahoo.com is invalid
abuse-mailbox:  catsi1958@yahoo.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-04T21:57:42Z
source:         APNIC

role:           Calapan Telephone System Inc administrator
address:        Catsi Business Center G/F CM Corporate Center, Block 5 Sta. Maria Village, calapan city oriental mindoro 5200
country:        PH
phone:          +639178258777
e-mail:         catsi1958@yahoo.com
admin-c:        CTSI3-AP
tech-c:         CTSI3-AP
nic-hdl:        CTSI3-AP
mnt-by:         MAINT-CATSI-PH
last-modified:  2023-05-04T02:31:04Z
source:         APNIC

% Information related to 'AS150842 - AS151865'

as-block:       AS150842 - AS151865
descr:          APNIC ASN block
admin-c:        IA55-AP
tech-c:         IH123-AP
mnt-by:         MNT-APJII-ID
mnt-lower:      MNT-APJII-ID
last-modified:  2026-02-16T11:14:43Z
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-US2)