121.54.16.0/21

AS10139 · Smart Broadband, Inc.

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Summary

Country	Philippines
Domain	smart.com.ph
ASN	AS10139
Parent Range	121.54.0.0/17
Registry	APNIC
ID	SMARTBRO-PH

WHOIS Details

inetnum:        121.54.0.0 - 121.54.127.255
netname:        SMARTBRO-PH
descr:          Smart Broadband Incorporated
descr:          Wireless Broadband Access
descr:          Ayala Avenue, Makati City
country:        PH
org:            ORG-SBI2-AP
admin-c:        SBT16-AP
tech-c:         SBT16-AP
abuse-c:        AS2810-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-SMARTBRO
mnt-routes:     MAINT-PH-SMARTBRO
mnt-irt:        IRT-SMARTBRO-PH
last-modified:  2020-10-20T01:09:33Z
source:         APNIC

irt:            IRT-SMARTBRO-PH
address:        Smart Tower
address:        6799 Ayala Avenue Makati City
address:        1226 Philippines
e-mail:         allsmarttscipbb@smart.com.ph
abuse-mailbox:  allsmarttscipbb@smart.com.ph
admin-c:        SBT16-AP
tech-c:         SBT16-AP
auth:           # Filtered
remarks:        allsmarttscipbb@smart.com.ph is invalid
mnt-by:         MAINT-PH-SMARTBRO
last-modified:  2025-11-26T13:12:36Z
source:         APNIC

organisation:   ORG-SBI2-AP
org-name:       Smart Broadband, Inc.
org-type:       LIR
country:        PH
address:        SMART LEC Bldg., UPS5 Subd.,
address:        Filipinas Ave., Sucat Road,
phone:          +632-541-5772
fax-no:         +632-541-5530
e-mail:         ccabecina@pldt.com.ph
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:48Z
source:         APNIC

role:           ABUSE SMARTBROPH
country:        ZZ
address:        Smart Tower
address:        6799 Ayala Avenue Makati City
address:        1226 Philippines
phone:          +000000000
e-mail:         allsmarttscipbb@smart.com.ph
admin-c:        SBT16-AP
tech-c:         SBT16-AP
nic-hdl:        AS2810-AP
remarks:        Generated from irt object IRT-SMARTBRO-PH
remarks:        allsmarttscipbb@smart.com.ph is invalid
abuse-mailbox:  allsmarttscipbb@smart.com.ph
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-26T13:12:56Z
source:         APNIC

role:           Smart Broadband Team
address:        Smart Tower
address:        6799 Ayala Avenue Makati City
address:        1226 Philippines
country:        PH
phone:          +632-511-6354
fax-no:         +632-511-2610
e-mail:         raclaron@smart.com.ph
admin-c:        RC668-AP
tech-c:         RC668-AP
nic-hdl:        SBT16-AP
notify:         raclaron@smart.com.ph
abuse-mailbox:  insirt@smart.com.ph
mnt-by:         MAINT-PH-SMARTBRO
last-modified:  2016-10-06T03:55:49Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 121.54.16.0/21

Range	ASN	Company	Num of IPs
121.54.0.0/17	AS10139	Smart Broadband Incorporated	32,768

Nearby Ranges

BGP prefixes that overlap with 121.54.0.0/16

Range	ASN	Company	Num of IPs
121.54.0.0/17	AS10139	Smart Broadband Incorporated	32,768
121.54.192.0/18	AS38091	LG HelloVision Corp.	16,384
121.54.128.0/19	AS4826	VOCUS PTY LTD	8,192
121.54.168.0/21	AS152194	Sun Network (Hong Kong) Limited	2,048
121.54.184.0/22	AS212581	SGX FX SYSTEMS UK LIMITED	1,024
121.54.160.0/22	AS132839	POWER LINE (HK) CO., LIMITED	1,024
121.54.164.0/22	AS134739	AGB Communication Co., Ltd	1,024
121.54.173.0/24	AS152194	MEGA-II IDC	256
121.54.174.0/24	AS152194	MEGA-II IDC	256
121.54.175.0/24	AS152194	MEGA-II IDC	256
121.54.190.0/24	AS62468	7F,World peace center,55 wo tong tsui st,kwai chung	256
121.54.191.0/24	AS62468	7F,World peace center,55 wo tong tsui st,kwai chung	256
121.54.164.0/24	AS134739	AGB Communication Co., Ltd	256
121.54.165.0/24	AS134739	AGB Communication Co., Ltd	256
121.54.166.0/24	AS134739	AGB Communication Co., Ltd	256
121.54.167.0/24	AS134739	AGB Communication Co., Ltd	256
121.54.168.0/24	AS152194	MEGA-II IDC	256
121.54.171.0/24	AS152194	MEGA-II IDC	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
121.54.18.181	AS10139 Smart Broadband, Inc.	`21.63ms` from Manila, PH
121.54.22.145	AS10139 Smart Broadband, Inc.	`14.21ms` 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
76.145.215.21	AS7922 Comcast Cable Communications, LLC	`4.34ms` from Atlanta, US
69.9.228.101	AS11232 Midcontinent Communications	`14.76ms` from Denver, US
93.133.229.197	AS6805 Telefonica Germany GmbH & Co.OHG	`2.77ms` from Duesseldorf, DE
157.15.118.37	AS152401 PT Airlink Media Data	`9.95ms` from Jakarta, ID
46.98.84.229	AS15377 TRADITIONAL LLC	`7.30ms` from Kyiv, UA
76.95.85.101	AS20001 Charter Communications Inc	`7.27ms` from Los Angeles, US
180.96.179.37	AS4134 CHINANET-BACKBONE	`3.16ms` from Nanjing, CN
3.87.245.197	AS14618 Amazon.com, Inc.	`0.47ms` from Reston, US
24.2.85.181	AS7922 Comcast Cable Communications, LLC	`2.13ms` from Salt Lake City, US
182.230.115.165	AS17858 LG POWERCOMM	`1.80ms` from Seoul, KR
179.93.233.37	AS26599 TELEFÔNICA BRASIL S.A	`1.42ms` from São Paulo, BR
111.89.87.245	AS2514 NTT PC Communications, Inc.	`3.73ms` from Tokyo, JP
112.50.239.21	AS9808 China Mobile Communications Group Co., Ltd.	`4.66ms` from Xiamen, CN
42.230.38.117	AS4837 CHINA UNICOM China169 Backbone	`6.35ms` from Zhengzhou, CN
167.114.0.21	AS16276 OVH SAS	`0.06ms` from Beauharnois, CA
120.153.12.197	AS1221 Telstra Limited	`3.12ms` from Brisbane, AU
20.216.23.213	AS8075 Microsoft Corporation	`0.93ms` from Dubai, AE
47.99.113.53	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`5.11ms` from Hangzhou, CN
14.231.142.5	AS45899 VNPT Corp	`1.34ms` from Hanoi, VN
125.209.28.5	AS17597 SK Broadband Co Ltd	`1.85ms` from Incheon, KR
16.78.152.21	AS16509 Amazon.com, Inc.	`0.17ms` from Jakarta, ID
61.158.44.69	AS4837 CHINA UNICOM China169 Backbone	`17.59ms` from Liaoyang, CN
47.142.159.229	AS5650 Frontier Communications of America, Inc.	`6.55ms` from Los Angeles, US
164.73.190.5	AS1797 Uruguay	`5.45ms` from Montevideo, UY
103.255.200.69	AS138950 Jiangsu Wuxi International IDC network	`3.63ms` from Nanjing, CN

Traceroute

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

traceroute -a -n -q1 -f3 -m6 121.54.21.126

traceroute to 121.54.21.126 (121.54.21.126): 6 hops max, 52 byte packets

3 [AS132145] 180.233.129.201 126.015 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Darwin, AU

On January 9th 2026

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