ASN AS55928 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS55928?

AS55928 is listed under NTT Communications Phnom Penh.

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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AS55928 NTT Communications Phnom Penh

ASN Lookup Tool

NTT Communications Phnom Penh ntt.co.th

KH 8 Routes

AS Data

AS55928

AS55928 – NTT Communications Phnom Penh

AS Number	55928
AS Name	NTTCT-AS-KH-AP
Organization	NTT Communications Phnom Penh(org-ncpp1-ap)
Country	KH
Website	ntt.co.th
Number of IPv4 Routes	7
Number of IPv6 Routes	1
ASN type	ISP
Registry	APNIC
Date Allocated	N/A

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Use ASN data for AS55928 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
36.255.144.0/23	AS55928	NTT Communications Phnom Penh	NTT Communications Phnom Penh	512
2403:7500::/32	AS55928	NTT Communications Phnom Penh	NTT Communications Phnom Penh	~79×10²⁷
103.7.24.0/22	AS55928	NTT Communications Phnom Penh	NTT Communications Phnom Penh	1024
103.7.27.0/24	AS55928	NTT Communications Phnom Penh	NTT Communications Phnom Penh	256
103.7.24.0/23	AS55928	NTT Communications Phnom Penh	NTT Communications Phnom Penh	512
36.255.144.0/22	AS55928	NTT Communications Phnom Penh	NTT Communications Phnom Penh	1024
103.7.26.0/23	AS55928	NTT Communications Phnom Penh	NTT Communications Phnom Penh	512
36.255.146.0/23	AS55928	NTT Communications Phnom Penh	NTT Communications Phnom Penh	512

Raw Whois Response

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

% Information related to 'AS55296 - AS56319'

as-block:       AS55296 - AS56319
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:  2009-09-03T01:15:30Z
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 'AS55928'

% Abuse contact for 'AS55928' is 'nttapac.th.abuse@global.ntt'

aut-num:        AS55928
as-name:        NTTCT-AS-KH-AP
descr:          NTT Communications (Phnom Penh ISP POP)
descr:          Internet Service Provider in Cambodia
country:        KH
org:            ORG-NCPP1-AP
admin-c:        HY443-AP
tech-c:         NTT10-AP
abuse-c:        AN727-AP
mnt-lower:      MAINT-AS-NTTCT
mnt-routes:     MAINT-AS-NTTCT
mnt-by:         APNIC-HM
mnt-irt:        IRT-NTTCT-TH
last-modified:  2020-06-10T04:40:02Z
source:         APNIC

irt:            IRT-NTTCT-TH
address:        NTT Communications (Thailand) Co.,Ltd
address:        199 Column Tower, Rachadapisek Rd., Klongtoey
e-mail:         nttapac.th.isp-op@global.ntt
abuse-mailbox:  nttapac.th.abuse@global.ntt
admin-c:        NTT10-AP
tech-c:         NTT10-AP
auth:           # Filtered
remarks:        nttapac.th.abuse@global.ntt
remarks:        nttapac.th.isp-op@global.ntt was validated on 2025-11-13
remarks:        nttapac.th.abuse@global.ntt was validated on 2025-11-13
mnt-by:         MAINT-AS-NTTCT
last-modified:  2025-11-17T23:08:35Z
source:         APNIC

organisation:   ORG-NCPP1-AP
org-name:       NTT Communications Phnom Penh
org-type:       LIR
country:        KH
address:        Room 788, 7th floor Building F, Phnom Penh Center
address:        corner Sihanouk (274) & Sothearos (3) Blvd, Sangkat Tonle
address:        Basac, Khan Chamkar Morn
phone:          +855-77-555193
fax-no:         +855-23-221814
e-mail:         nttapac.kh.noc@global.ntt
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:56Z
source:         APNIC

role:           ABUSE NTTCTTH
country:        ZZ
address:        NTT Communications (Thailand) Co.,Ltd
address:        199 Column Tower, Rachadapisek Rd., Klongtoey
phone:          +000000000
e-mail:         nttapac.th.isp-op@global.ntt
admin-c:        NTT10-AP
tech-c:         NTT10-AP
nic-hdl:        AN727-AP
remarks:        Generated from irt object IRT-NTTCT-TH
remarks:        nttapac.th.isp-op@global.ntt was validated on 2025-11-13
remarks:        nttapac.th.abuse@global.ntt was validated on 2025-11-13
abuse-mailbox:  nttapac.th.abuse@global.ntt
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-13T03:10:05Z
source:         APNIC

role:           NTT Communications Thailand NOC
address:        199 Column Tower.,
address:        Ratchadapisek Road, Klongtoey
address:        Bangkok 10110
country:        TH
phone:          +66-2-2367227
e-mail:         nttapac.th.isp-op@global.ntt
admin-c:        US19-AP
tech-c:         US19-AP
tech-c:         PP1152-AP
nic-hdl:        NTT10-AP
notify:         nttapac.th.isp-op@global.ntt
mnt-by:         MAINT-AS-NTTCT
last-modified:  2023-06-01T04:01:35Z
source:         APNIC

person:         Hidehiko Yamamoto
address:        NTT Communications (Thailand) Co.,Ltd
address:        946 Room 601, Rama IV Rd.,
address:        Silom, Bangrak, Bangkok 10500
country:        TH
phone:          +66-2-2367227
e-mail:         yamamoto.hi@ntt.co.th
nic-hdl:        HY443-AP
mnt-by:         MAINT-AS-NTTCT
last-modified:  2010-02-01T03:53:24Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS55296 - AS56319",
    "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" : "2009-09-03",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS55928",
    "as_name" : "NTTCT-AS-KH-AP",
    "description" : [ "NTT Communications (Phnom Penh ISP POP)", "Internet Service Provider in Cambodia" ],
    "country" : "KH",
    "organization" : "ORG-NCPP1-AP",
    "admin_contacts" : [ "HY443-AP" ],
    "tech_contacts" : [ "NTT10-AP" ],
    "abuse_contacts" : [ "AN727-AP" ],
    "mnt_irt" : [ "IRT-NTTCT-TH" ],
    "mnt_lower" : [ "MAINT-AS-NTTCT" ],
    "mnt_routes" : [ "MAINT-AS-NTTCT" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2020-06-10",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-NTTCT-TH",
    "address" : [ "NTT Communications (Thailand) Co.,Ltd", "199 Column Tower, Rachadapisek Rd., Klongtoey" ],
    "street" : "Rachadapisek Rd. Klongtoey",
    "email" : [ "nttapac.th.isp-op@global.ntt" ],
    "abuse_mailbox" : [ "nttapac.th.abuse@global.ntt" ],
    "admin_contacts" : [ "NTT10-AP" ],
    "tech_contacts" : [ "NTT10-AP" ],
    "remarks" : [ "nttapac.th.abuse@global.ntt", "nttapac.th.isp-op@global.ntt was validated on 2025-11-13", "nttapac.th.abuse@global.ntt was validated on 2025-11-13" ],
    "mnt_by" : [ "MAINT-AS-NTTCT" ],
    "date_updated" : "2025-11-17",
    "source" : "APNIC"
  },
  "organization" : {
    "handle" : "ORG-NCPP1-AP",
    "name" : "NTT Communications Phnom Penh",
    "type" : "LIR",
    "address" : [ "Room 788, 7th floor Building F, Phnom Penh Center", "corner Sihanouk (274) & Sothearos (3) Blvd, Sangkat Tonle", "Basac, Khan Chamkar Morn" ],
    "street" : "Blvd Sangkat Tonle Basac Khan Chamkar Morn",
    "country" : [ "KH" ],
    "email" : [ "nttapac.kh.noc@global.ntt" ],
    "phone" : [ "+855-77-555193" ],
    "fax_no" : [ "+855-23-221814" ],
    "mnt_ref" : [ "APNIC-HM" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2023-09-05",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "HY443-AP",
    "name" : "Hidehiko Yamamoto",
    "address" : [ "NTT Communications (Thailand) Co.,Ltd", "946 Room 601, Rama IV Rd.,", "Silom, Bangrak, Bangkok 10500" ],
    "street" : "Rama Iv Rd. Silom Bangrak",
    "city" : "Bangkok",
    "zip_code" : "10500",
    "country" : "TH",
    "email" : [ "yamamoto.hi@ntt.co.th" ],
    "phone" : [ "+66-2-2367227" ],
    "mnt_by" : [ "MAINT-AS-NTTCT" ],
    "date_updated" : "2010-02-01",
    "source" : "APNIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "NTT10-AP",
    "name" : "NTT Communications Thailand NOC",
    "address" : [ "199 Column Tower.,", "Ratchadapisek Road, Klongtoey", "Bangkok 10110" ],
    "street" : "Ratchadapisek Road Klongtoey",
    "city" : "Bangkok",
    "zip_code" : "10110",
    "country" : "TH",
    "email" : [ "nttapac.th.isp-op@global.ntt" ],
    "phone" : [ "+66-2-2367227" ],
    "admin_contacts" : [ "US19-AP" ],
    "tech_contacts" : [ "US19-AP", "PP1152-AP" ],
    "notify" : [ "nttapac.th.isp-op@global.ntt" ],
    "mnt_by" : [ "MAINT-AS-NTTCT" ],
    "date_updated" : "2023-06-01",
    "source" : "APNIC"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AN727-AP",
    "name" : "ABUSE NTTCTTH",
    "address" : [ "NTT Communications (Thailand) Co.,Ltd", "199 Column Tower, Rachadapisek Rd., Klongtoey" ],
    "street" : "Rachadapisek Rd. Klongtoey",
    "country" : "ZZ",
    "email" : [ "nttapac.th.isp-op@global.ntt" ],
    "abuse_mailbox" : [ "nttapac.th.abuse@global.ntt" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "NTT10-AP" ],
    "tech_contacts" : [ "NTT10-AP" ],
    "remarks" : [ "Generated from irt object IRT-NTTCT-TH", "nttapac.th.isp-op@global.ntt was validated on 2025-11-13", "nttapac.th.abuse@global.ntt was validated on 2025-11-13" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2025-11-13",
    "source" : "APNIC"
  } ]
}

Peers

AS Number	Description	Country
AS58465	Cambodia Securities Exchange	KH
AS38235	ANGKOR DATA COMMUNICATION GROUP CO., LTD. A D C	KH
AS58465	25th Floor Canadia Tower N0. 315 Presh Ang Duong Street	KH
AS139628	Mega Truenet Communication Co., Ltd.	KH
AS38235	ANGKOR DATA COMMUNICATION	KH

Upstreams

AS Number	Description	Country
AS38235	ANGKOR DATA COMMUNICATION GROUP CO., LTD. A D C	KH
AS139628	Mega Truenet Communication Co., Ltd.	KH

Downstreams

AS Number	Description	Country
AS58465	Cambodia Securities Exchange	KH

Contacts

Email Contacts

nttapac.th.isp-op@global.ntt yamamoto.hi@ntt.co.th

Abuse Contacts

nttapac.th.abuse@global.ntt