103.21.168.0/24

AS132454 · Philippine Telegraph and Telephone Corporation,

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Summary

Country	Philippines
Domain	ptt.com.ph
ASN	AS132454
Registry	APNIC
ID	PTT

WHOIS Details

inetnum:        103.21.168.0 - 103.21.171.255
netname:        PTT
descr:          Philippine Telelgraph & Telephone
descr:          Spirit of Communications Center Building
descr:          # 106 Carlos Palanca Jr. St
descr:          Legaspi Village
country:        PH
org:            ORG-PTT1-AP
admin-c:        PTTN1-AP
tech-c:         PTTN1-AP
abuse-c:        AP987-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-PH-PTT
mnt-routes:     MAINT-PH-PTT
mnt-irt:        IRT-PTT-PH
last-modified:  2020-08-19T06:30:39Z
source:         APNIC

irt:            IRT-PTT-PH
address:        Spirit of Communications Center Building
address:        
e-mail:         noc@ptt.com.ph
abuse-mailbox:  abuse@ptt.com.ph
admin-c:        PTTN1-AP
tech-c:         PTTN1-AP
auth:           # Filtered
remarks:        abuse@ptt.com.ph is valid
remarks:        abuse@ptt.com.ph was validated on 2025-08-13
remarks:        noc@ptt.com.ph was validated on 2025-08-28
mnt-by:         MAINT-PH-PTT
last-modified:  2025-11-18T00:27:34Z
source:         APNIC

organisation:   ORG-PTT1-AP
org-name:       Philippine Telelgraph & Telephone
org-type:       LIR
country:        PH
address:        Spirit of Communications Center Building
address:        # 106 Carlos Palanca Jr. St
address:        Legaspi Village
phone:          +63-2-8726-8888
e-mail:         noc@ptt.com.ph
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:52Z
source:         APNIC

role:           ABUSE PTTPH
country:        ZZ
address:        Spirit of Communications Center Building
address:        # 106 Carlos Palanca St Legaspi Village, Makati City
phone:          +000000000
e-mail:         noc@ptt.com.ph
admin-c:        PTTN1-AP
tech-c:         PTTN1-AP
nic-hdl:        AP987-AP
remarks:        Generated from irt object IRT-PTT-PH
remarks:        abuse@ptt.com.ph was validated on 2025-08-13
remarks:        noc@ptt.com.ph was validated on 2025-08-28
abuse-mailbox:  abuse@ptt.com.ph
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-28T13:32:54Z
source:         APNIC

role:           Philippine Telegraph and Telephone Corporation IP Network
address:        Spirit of Communications Center Building
address:        #106 Carlos Palanca St Legaspi Village, Makati City
country:        PH
phone:          +63-2-8159961
fax-no:         +63-2-8159961
remarks:        ###############################################
remarks:        # Send ABUSE reports to abuse@ptt.com.ph #
remarks:        # Send SPAM reports to abuse@ptt.com.ph   #
remarks:        # Please include detailed information and     #
remarks:        # times in UTC                                #
remarks:        ###############################################
remarks:        www.ptt.com.ph
admin-c:        EBP2-AP
tech-c:         EBP2-AP
nic-hdl:        PTTN1-AP
e-mail:         noc@ptt.com.ph
notify:         noc@ptt.com.ph
mnt-by:         MAINT-PH-PTT
last-modified:  2022-07-04T07:39:28Z
source:         APNIC

route:          103.21.168.0/22
origin:         AS132454
descr:          Philippine Telelgraph & Telephone Spirit of Communications Center Building Legaspi Village
mnt-by:         MAINT-PH-PTT
last-modified:  2017-07-06T05:06:39Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 103.21.0.0/16

Range	ASN	Company	Num of IPs
103.21.236.0/22	AS12886	LEW TelNet GmbH	1,024
103.21.132.0/22	AS38835	Buroserv Australia Pty Ltd	1,024
103.21.156.0/22	AS134141	B2B Wholesale Pty Ltd	1,024
103.21.48.0/22	AS58750	ThinkEx Holdings Pty Ltd	1,024
103.21.128.0/22	AS58927	M.D.G. IT Pty Ltd	1,024
103.21.60.0/22	AS131148	Bank Of Taiwan	1,024
103.21.176.0/22	AS9808	China Mobile Communications Corporation	1,024
103.21.216.0/22	AS9905	PT. LINKNET,	1,024
103.21.184.0/22	AS132453	TRIPLE PLAY BROADBAND PRIVATE LIMITED	1,024
103.21.200.0/22	AS38091	LG HelloVision Corp.	1,024
103.21.0.0/22	AS38195	SUPERLOOP (AUSTRALIA) PTY LTD	1,024
103.21.148.0/22	AS38732	CMC Telecom Infrastructure Company	1,024
103.21.204.0/22	AS131746	PT. Medianusa Permana	1,024
103.21.116.0/22	AS138950	Shanghai ruisu Network Technology Co.,Ltd	1,024
103.21.252.0/22	AS131310	PLTPRO Data Centre Sdn. Bhd.	1,024
103.21.124.0/22	AS132423	Powai	1,024
103.21.84.0/22	AS45786	PT Hawk Teknologi Solusi	1,024
103.21.240.0/22	AS16509	Amazon Connection Technology Services (Beijing) Co., LTD	1,024
103.21.32.0/22	AS132434	Maxis Broadband Sdn Bhd	1,024
103.21.44.0/22	AS132435	A-6-3A, Block A, No. 2, Jalan PJU 1A/7A,	1,024
103.21.140.0/22	AS4811	Shanghai Meicheng Technology Information Co.,Ltd.	1,024
103.21.140.0/22	AS4812	Shanghai Meicheng Technology Information Co.,Ltd.	1,024
103.21.152.0/22	AS24028	REDtone Marketing Sdn. Bhd.	1,024
103.21.116.0/22	AS55994	Shanghai ruisu Network Technology Co.,Ltd	1,024
103.21.8.0/22	AS26658	UNIT 04, 7/F, BRIGHT WA, NO. 33 MONG KOK rd, kl, HK	1,024
103.21.40.0/22	AS58715	EarthTelcommunication	1,024
103.21.60.0/22	AS3462	Bank Of Taiwan	1,024
103.21.208.0/22	AS36352	Kaifeng Guochao E-commerce Co.Ltd.	1,024
103.21.120.0/22	AS131368	Petrovietnam oil corporation	1,024
103.21.58.0/23	AS394695	P.D.R Solutions FZC	512
103.21.68.0/23	AS136290	COUNTRY ONLINE SERVICES	512
103.21.70.0/23	AS150070	SPIRETEL TECHNOLOGIES PRIVATE LIMITED	512
103.21.28.0/23	AS54187	Eze Castle Integration, Inc. - ECINet	512
103.21.64.0/23	AS150982	Dinas Komunikasi, Informatika dan Persandian Kabupaten Kampar	512
103.21.100.0/23	AS140807	CUU LONG INTERNATIONAL DEVELOPMENT SERVICES AND TRADING JOINT STOCK COMPANY	512
103.21.96.0/23	AS140807	AN ANH PHONG COMPANY LIMITED	512
103.21.222.0/23	AS149829	Dream View Cable Network	512
103.21.18.0/23	AS58714	19th Floor, Tower C and D, Building No. 14, DLF Cyber City,	512
103.21.6.0/23	AS150069	CLOUDNET INTERNET SERVICE PVT LTD	512
103.21.92.0/24	AS45295	PT. Cipta Informatika Cemerlang	256
103.21.93.0/24	AS45295	PT. Cipta Informatika Cemerlang	256
103.21.94.0/24	AS45295	PT. Cipta Informatika Cemerlang	256
103.21.95.0/24	AS45295	PT. Cipta Informatika Cemerlang	256
103.21.180.0/24	AS45352	ONEBIRD (M) SDN. BHD.	256
103.21.181.0/24	AS45352	ONEBIRD (M) SDN. BHD.	256
103.21.182.0/24	AS45352	ONEBIRD (M) SDN. BHD.	256
103.21.183.0/24	AS45352	ONEBIRD (M) SDN. BHD.	256
103.21.84.0/24	AS45786	PT Hawk Teknologi Solusi	256
103.21.85.0/24	AS45786	PT. Hawk Teknologi Solusi	256
103.21.86.0/24	AS45786	PT. Hawk Teknologi Solusi	256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
103.21.168.26	fsi.com.ph	1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

48 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
103.21.168.5	AS132454 Philippine Telegraph and Telephone Corporation,	`0.34ms` from Manila, PH

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
145.97.192.72	AS1103 SURF B.V.	`1.07ms` from Amsterdam, NL
40.177.15.184	AS16509 Amazon.com, Inc.	`1.70ms` from Calgary, CA
106.213.33.24	AS24560 Bharti Airtel Ltd., Telemedia Services	`9.40ms` from Delhi, IN
68.43.14.216	AS7922 Comcast Cable Communications, LLC	`8.54ms` from Flint, US
80.144.109.168	AS3320 Deutsche Telekom AG	`2.20ms` from Frankfurt am Main, DE
96.30.131.184	AS11260 EastLink	`8.68ms` from Fredericton, CA
116.8.43.184	AS4134 CHINANET-BACKBONE	`0.49ms` from Nanning, CN
62.91.83.120	AS20686 Bisping & Bisping GmbH & Co KG	`1.08ms` from Nuernberg, DE
178.213.152.8	AS16019 Vodafone Czech Republic a.s.	`2.13ms` from Prague, CZ
45.43.77.56	AS42532 SIA VEESP	`0.19ms` from Riga, LV
69.116.243.248	AS6128 Cablevision Systems Corp.	`9.60ms` from Secaucus, US
45.154.254.248	AS41281 KeFF Networks Ltd	`0.20ms` from Singapore, SG
175.32.49.40	AS4804 Microplex PTY LTD	`2.11ms` from Sydney, AU
210.174.15.72	AS2527 Sony Network Communications Inc.	`17.17ms` from Tokyo, JP
75.143.37.216	AS20115 Charter Communications LLC	`11.84ms` from Ashburn, US
40.176.76.104	AS16509 Amazon.com, Inc.	`1.59ms` from Calgary, CA
120.226.255.200	AS56047 China Mobile communications corporation	`6.82ms` from Changsha, CN
66.26.243.136	AS11426 Charter Communications Inc	`10.53ms` from Charlotte, US
18.116.119.8	AS16509 Amazon.com, Inc.	`0.17ms` from Columbus, US
47.200.102.72	AS5650 Frontier Communications of America, Inc.	`6.11ms` from Miami, US
213.178.195.200	AS34758 Axera SpA	`3.34ms` from Milan, IT
15.223.194.104	AS16509 Amazon.com, Inc.	`0.16ms` from Montreal, CA
178.186.110.232	AS12389 PJSC Rostelecom	`5.58ms` from Novosibirsk, RU
118.18.239.216	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.71ms` from Osaka, JP
88.213.227.248	AS8399 SEWAN SAS	`0.50ms` from Paris, FR

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f4 103.21.168.5

traceroute to 103.21.168.5 (103.21.168.5): 64 hops max, 52 byte packets

4 [AS21859] 156.59.170.165 0.144 ms

5 [AS21859] 128.1.58.159 0.568 ms

6 [AS135607] 61.245.30.66 0.553 ms

7 [AS132454] 103.21.168.5 0.414 ms

Measurement taken from

IPinfo ProbeNet in Manila, PH

On January 30th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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