65,536 routable77 ASes
/16 subnet
103.21.0.0/16
Where this subnet is, who announces it, and what our databases hold in it. Below, every /24 inside it; open one for its addresses.
65,536
routable addresses
65,536
geolocated
21
countries
77
announcing ASes
191
announced prefixes
3,232
anonymous addresses
Where it is
Addresses IP Geolocation places in each country, as a share of those it places.
- Australia9,728 · 14.84%
- India9,728 · 14.84%
- Indonesia7,680 · 11.72%
- China6,144 · 9.38%
- Malaysia6,144 · 9.38%
- Vietnam3,072 · 4.69%
- Bangladesh2,560 · 3.91%
- United States2,304 · 3.52%
- Hong Kong2,048 · 3.13%
- Japan2,048 · 3.13%
Who announces it
Each /24 counted for the AS announcing most of it, as a share of the routable addresses.
- AS4811China Telecom (Group)1,024 · 1.56%
- AS9808China Mobile Communications Group Co., Ltd.1,024 · 1.56%
- AS9905Linknet ASN1,024 · 1.56%
- AS9927Philippine Global Communications Corporation1,024 · 1.56%
- AS12886LEW TelNet GmbH1,024 · 1.56%
- AS16509Amazon.com, Inc.1,024 · 1.56%
- AS24028REDtone1,024 · 1.56%
- AS26658HT1,024 · 1.56%
- AS36352HostPapa1,024 · 1.56%
- AS38040TOT Public Company Limited1,024 · 1.56%
What the databases see
Addresses each address-keyed database holds in this block, as a share of its routable addresses. Counts overlap: one address can be in several.
- VPN IP1,1531.76%
- Residential Proxy IP2,1623.30%
- 0.08%
- 0.72%
- 0.00%
- None here
- None here
- Hosting IP12,80019.53%
- CDN IP1,1031.68%
- Carrier IP5,1107.80%
- None here
- None here
- SSH IP1,2541.91%
- SMTP IP8081.23%
- DNS Resolver IP2,0673.15%
- Web IP4,2886.54%
- 1.46%
Announced prefixes
Every prefix inside this block that BGP Route saw announced, with its origin and RPKI status.
| PREFIX | ORIGIN | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|---|
| 103.21.0.0/22 | AS38195Superloop | Australia | Valid | 17 | 2026-10-02 |
| 103.21.4.0/24 | AS136000Lightning Broadband Pty Ltd | Australia | Valid | 17 | 2026-10-02 |
| 103.21.5.0/24 | AS136000Lightning Broadband Pty Ltd | Australia | Valid | 17 | 2026-10-02 |
| 103.21.6.0/23 | AS150069CLOUDNET INTERNET SERVICE PVT LTD | India | Valid | 17 | 2026-10-02 |
| 103.21.6.0/24 | AS150069CLOUDNET INTERNET SERVICE PVT LTD | India | Valid | 17 | 2026-10-02 |
| 103.21.7.0/24 | AS150069CLOUDNET INTERNET SERVICE PVT LTD | India | Valid | 17 | 2026-10-02 |
| 103.21.8.0/22 | AS26658HT | Hong Kong | Valid | 17 | 2026-10-02 |
| 103.21.12.0/24 | AS9927Philippine Global Communications Corporation | Philippines | Valid | 18 | 2026-10-02 |
| 103.21.13.0/24 | AS9927Philippine Global Communications Corporation | Philippines | Valid | 18 | 2026-10-02 |
| 103.21.14.0/24 | AS9927Philippine Global Communications Corporation | Philippines | Valid | 18 | 2026-10-02 |
| 103.21.15.0/24 | AS9927Philippine Global Communications Corporation | Philippines | Valid | 18 | 2026-10-02 |
| 103.21.17.0/24 | AS132448SolutionOne Pty Ltd | Australia | Valid | 17 | 2026-10-02 |
| 103.21.18.0/23 | AS58714CVENT-INDIA | India | Not found | 17 | 2026-10-02 |
| 103.21.20.0/24 | AS58713FIBERVISION | Australia | Valid | 17 | 2026-10-02 |
| 103.21.21.0/24 | AS58713FIBERVISION | Australia | Valid | 17 | 2026-10-02 |
| 103.21.22.0/24 | AS58713FIBERVISION | Australia | Valid | 17 | 2026-10-02 |
| 103.21.23.0/24 | AS58713FIBERVISION | Australia | Valid | 17 | 2026-10-02 |
| 103.21.24.0/24 | AS38040TOT Public Company Limited | Thailand | Valid | 18 | 2026-10-02 |
| 103.21.25.0/24 | AS38040TOT Public Company Limited | Thailand | Valid | 18 | 2026-10-02 |
| 103.21.26.0/24 | AS38040TOT Public Company Limited | Thailand | Valid | 18 | 2026-10-02 |
| 103.21.27.0/24 | AS38040TOT Public Company Limited | Thailand | Valid | 18 | 2026-10-02 |
| 103.21.28.0/23 | AS54187EZE Castle Integration Inc. | Hong Kong | Valid | 17 | 2026-10-02 |
| 103.21.28.0/24 | AS54187EZE Castle Integration Inc. | Hong Kong | Valid | 17 | 2026-10-02 |
| 103.21.30.0/23 | AS54187EZE Castle Integration Inc. | Singapore | Valid | 17 | 2026-10-02 |
| 103.21.30.0/24 | AS54187EZE Castle Integration Inc. | Singapore | Valid | 17 | 2026-10-02 |
| 103.21.32.0/22 | AS132434MaxisNet International Internet Gateway | Malaysia | Not found | 17 | 2026-10-02 |
| 103.21.32.0/24 | AS132434MaxisNet International Internet Gateway | Malaysia | Not found | 17 | 2026-10-02 |
| 103.21.33.0/24 | AS132434MaxisNet International Internet Gateway | Malaysia | Not found | 17 | 2026-10-02 |
| 103.21.34.0/24 | AS132434MaxisNet International Internet Gateway | Malaysia | Not found | 17 | 2026-10-02 |
| 103.21.35.0/24 | AS132434MaxisNet International Internet Gateway | Malaysia | Not found | 17 | 2026-10-02 |
| 103.21.40.0/22 | AS58715EARTH TELECOMMUNICATION (Pvt) LTD. | Bangladesh | Valid | 18 | 2026-10-02 |
| 103.21.40.0/23 | AS58715EARTH TELECOMMUNICATION (Pvt) LTD. | Bangladesh | Valid | 18 | 2026-10-02 |
| 103.21.40.0/24 | AS58715EARTH TELECOMMUNICATION (Pvt) LTD. | Bangladesh | Valid | 18 | 2026-10-02 |
| 103.21.41.0/24 | AS58715EARTH TELECOMMUNICATION (Pvt) LTD. | Bangladesh | Valid | 18 | 2026-10-02 |
| 103.21.42.0/23 | AS58715EARTH TELECOMMUNICATION (Pvt) LTD. | Bangladesh | Valid | 18 | 2026-10-02 |
| 103.21.42.0/24 | AS58715EARTH TELECOMMUNICATION (Pvt) LTD. | Bangladesh | Valid | 18 | 2026-10-02 |
| 103.21.43.0/24 | AS58715EARTH TELECOMMUNICATION (Pvt) LTD. | Bangladesh | Valid | 18 | 2026-10-02 |
| 103.21.48.0/22 | AS58750ThinkEx Holdings Pty Ltd | Australia | Valid | 1 | 2026-10-29 |
| 103.21.48.0/24 | AS58750ThinkEx Holdings Pty Ltd | Australia | Valid | 17 | 2026-10-02 |
| 103.21.49.0/24 | AS58750ThinkEx Holdings Pty Ltd | Australia | Valid | 17 | 2026-10-02 |
| 103.21.50.0/24 | AS7604Zettagrid Pty Ltd | Australia | Valid | 17 | 2026-10-02 |
| 103.21.51.0/24 | AS58750ThinkEx Holdings Pty Ltd | Australia | Valid | 17 | 2026-10-02 |
| 103.21.52.0/24 | AS203020HostRoyale Technologies Pvt Ltd | Republic of the Congo | Valid | 17 | 2026-10-02 |
| 103.21.53.0/24 | AS132445Khetan Cable Network Pvt. Limited | India | Valid | 17 | 2026-10-02 |
| 103.21.54.0/24 | AS132445Khetan Cable Network Pvt. Limited | India | Valid | 17 | 2026-10-02 |
| 103.21.55.0/24 | AS132445Khetan Cable Network Pvt. Limited | India | Valid | 17 | 2026-10-02 |
| 103.21.56.0/24 | AS141753CBC TECH INTERNATIONAL LTD. | Singapore | Valid | 17 | 2026-10-02 |
| 103.21.57.0/24 | AS141753CBC TECH INTERNATIONAL LTD. | Singapore | Valid | 17 | 2026-10-02 |
| 103.21.58.0/23 | AS394695PDR | India | Valid | 17 | 2026-10-02 |
| 103.21.58.0/24 | AS394695PDR | India | Valid | 1 | 2026-10-29 |
| 103.21.60.0/22 | AS131148Bank Of Taiwan | Taiwan | Not found | 17 | 2026-10-02 |
| 103.21.60.0/23 | AS3462Data Communication Business Group | Taiwan | Not found | 17 | 2026-10-02 |
| 103.21.60.0/24 | AS131148Bank Of Taiwan | Taiwan | Not found | 17 | 2026-10-02 |
| 103.21.61.0/24 | AS131148Bank Of Taiwan | Taiwan | Not found | 17 | 2026-10-02 |
| 103.21.62.0/23 | AS3462Data Communication Business Group | Taiwan | Not found | 17 | 2026-10-02 |
| 103.21.62.0/24 | AS131148Bank Of Taiwan | Taiwan | Not found | 17 | 2026-10-02 |
| 103.21.63.0/24 | AS131148Bank Of Taiwan | Taiwan | Not found | 17 | 2026-10-02 |
| 103.21.64.0/24 | AS150982Dinas Komunikasi, Informatika dan Persandian Kabupaten Kampar | Indonesia | Valid | 18 | 2026-10-02 |
| 103.21.65.0/24 | AS150982Dinas Komunikasi, Informatika dan Persandian Kabupaten Kampar | Indonesia | Valid | 18 | 2026-10-02 |
| 103.21.67.0/24 | AS132441SHRI SAIBABA SANSTHAN TRUST, SHIRDI | India | Valid | 17 | 2026-10-02 |
| 103.21.68.0/23 | AS136290Country Online Services PVT LTD | India | Valid | 17 | 2026-10-02 |
| 103.21.68.0/24 | AS136290Country Online Services PVT LTD | India | Valid | 17 | 2026-10-02 |
| 103.21.69.0/24 | AS136290Country Online Services PVT LTD | India | Valid | 17 | 2026-10-02 |
| 103.21.70.0/23 | AS150070SPIRETEL TECHNOLOGIES PRIVATE LIMITED | India | Valid | 17 | 2026-10-02 |
| 103.21.76.0/24 | AS45536Readylink Internet Services Limited | India | Valid | 17 | 2026-10-02 |
| 103.21.77.0/24 | AS45536Readylink Internet Services Limited | India | Valid | 17 | 2026-10-02 |
| 103.21.78.0/24 | AS45536Readylink Internet Services Limited | India | Valid | 17 | 2026-10-02 |
| 103.21.79.0/24 | AS45536Readylink Internet Services Limited | India | Valid | 17 | 2026-10-02 |
| 103.21.80.0/24 | AS6453TATA COMMUNICATIONS (AMERICA) INC | Singapore | Not found | 17 | 2026-10-02 |
| 103.21.81.0/24 | AS40501SoundStack Technologies, LLC | United States | Valid | 17 | 2026-10-02 |
| 103.21.82.0/24 | AS5840518A/19,DODDANEKUNDI | India | Not found | 17 | 2026-10-02 |
| 103.21.83.0/24 | AS5840518A/19,DODDANEKUNDI | India | Not found | 17 | 2026-10-02 |
| 103.21.84.0/22 | AS45786PT. Hawk Teknologi Solusi | Indonesia | Valid | 18 | 2026-10-02 |
| 103.21.84.0/24 | AS45786PT. Hawk Teknologi Solusi | Indonesia | Valid | 18 | 2026-10-02 |
| 103.21.85.0/24 | AS45786PT. Hawk Teknologi Solusi | Indonesia | Valid | 18 | 2026-10-02 |
| 103.21.86.0/24 | AS45786PT. Hawk Teknologi Solusi | Indonesia | Valid | 18 | 2026-10-02 |
| 103.21.87.0/24 | AS45786PT. Hawk Teknologi Solusi | Indonesia | Valid | 18 | 2026-10-02 |
| 103.21.88.0/24 | AS55720Gigabit Hosting Sdn Bhd | Malaysia | Valid | 17 | 2026-10-02 |
| 103.21.89.0/24 | AS55720Gigabit Hosting Sdn Bhd | Malaysia | Valid | 17 | 2026-10-02 |
| 103.21.90.0/24 | AS55720Gigabit Hosting Sdn Bhd | Malaysia | Valid | 17 | 2026-10-02 |
| 103.21.91.0/24 | AS55720Gigabit Hosting Sdn Bhd | Malaysia | Valid | 17 | 2026-10-02 |
| 103.21.92.0/24 | AS45295PT. Cipta Informatika Cemerlang | Indonesia | Valid | 17 | 2026-10-02 |
| 103.21.93.0/24 | AS45295PT. Cipta Informatika Cemerlang | Indonesia | Valid | 18 | 2026-10-02 |
| 103.21.94.0/24 | AS45295PT. Cipta Informatika Cemerlang | Indonesia | Valid | 17 | 2026-10-02 |
| 103.21.95.0/24 | AS45295PT. Cipta Informatika Cemerlang | Indonesia | Valid | 17 | 2026-10-02 |
| 103.21.96.0/23 | AS140807Nguyen Ngoc Thanh Trading Limited Company | Vietnam | Valid | 17 | 2026-10-02 |
| 103.21.100.0/23 | AS140807Nguyen Ngoc Thanh Trading Limited Company | Vietnam | Valid | 17 | 2026-10-02 |
| 103.21.108.0/24 | AS639565G NETWORK OPERATIONS PTY LTD | Australia | Valid | 17 | 2026-10-02 |
| 103.21.116.0/22 | AS138950Jiangsu Wuxi International IDC network | China | Valid | 17 | 2026-10-02 |
| 103.21.120.0/22 | AS131368Petro Viet Nam Oil Corporation | Vietnam | Not found | 17 | 2026-10-02 |
| 103.21.120.0/24 | AS131368Petro Viet Nam Oil Corporation | Vietnam | Not found | 17 | 2026-10-02 |
| 103.21.124.0/22 | AS132423Powai | India | Valid | 19 | 2026-10-02 |
| 103.21.128.0/22 | AS58927M.D.G. IT Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 103.21.132.0/22 | AS38835Buroserv Australia Pty Ltd | Australia | Valid | 17 | 2026-10-02 |
| 103.21.132.0/23 | AS38835Buroserv Australia Pty Ltd | Australia | Valid | 4 | 2026-10-02 |
| 103.21.132.0/24 | AS38835Buroserv Australia Pty Ltd | Australia | Valid | 4 | 2026-10-02 |
| 103.21.133.0/24 | AS38835Buroserv Australia Pty Ltd | Australia | Valid | 4 | 2026-10-02 |
| 103.21.134.0/23 | AS38835Buroserv Australia Pty Ltd | Australia | Valid | 4 | 2026-10-02 |
| 103.21.134.0/24 | AS38835Buroserv Australia Pty Ltd | Australia | Valid | 4 | 2026-10-02 |
| 103.21.135.0/24 | AS38835Buroserv Australia Pty Ltd | Australia | Valid | 4 | 2026-10-02 |
Every /24 inside it
00 · Evaluate
Test the real build first.
An evaluation license puts a full current build in your hands, with no sampling, so you can measure it against your own traffic before anyone talks about terms.
01 · License
Then license what you use.
Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell, priced by scope rather than by seat.
Annual terms, a named contact, and monthly, quarterly or yearly payment.