103.51.0.0/16
Where this subnet is, who announces it, and what our databases hold in it. Below, every /24 inside it; open one for its addresses.
Where it is
Addresses IP Geolocation places in each country, as a share of those it places.
- India17,408 · 26.56%
- South Korea12,288 · 18.75%
- Australia5,632 · 8.59%
- Japan5,120 · 7.81%
- Indonesia4,352 · 6.64%
- Hong Kong2,560 · 3.91%
- Thailand2,560 · 3.91%
- Bangladesh2,048 · 3.13%
- Germany2,048 · 3.13%
- Taiwan2,048 · 3.13%
Who announces it
Each /24 counted for the AS announcing most of it, as a share of the routable addresses.
- AS17857SK Broadband Co Ltd2,048 · 3.13%
- AS2516KDDI CORPORATION1,024 · 1.56%
- AS9971SK Broadband Co Ltd1,024 · 1.56%
- AS10010TOKAI Communications Corporation1,024 · 1.56%
- AS10164SK Broadband Co Ltd1,024 · 1.56%
- AS10204Arcnet NTT MSC ISP1,024 · 1.56%
- AS12886LEW TelNet GmbH1,024 · 1.56%
- AS17426Primesoftex Ltd1,024 · 1.56%
- AS17573SK Broadband Co Ltd1,024 · 1.56%
- AS17597SK Broadband Co Ltd1,024 · 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 IP8641.32%
- Residential Proxy IP2,5893.95%
- 0.00%
- 0.01%
- 0.03%
- None here
- None here
- Hosting IP8,19212.50%
- CDN IP1,5642.39%
- Carrier IP1,0241.56%
- None here
- Anycast IP5120.78%
- SSH IP9231.41%
- SMTP IP830.13%
- DNS Resolver IP1,4132.16%
- Web IP3,6775.61%
- 1.37%
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 |
|---|---|---|---|---|---|
| 103.51.0.0/23 | AS45649SS&C FINTECH SERVICES INDIA PRIVATE LIMITED | India | Not found | 17 | 2026-10-02 |
| 103.51.0.0/24 | AS45649SS&C FINTECH SERVICES INDIA PRIVATE LIMITED | India | Not found | 17 | 2026-10-02 |
| 103.51.1.0/24 | AS45649SS&C FINTECH SERVICES INDIA PRIVATE LIMITED | India | Not found | 17 | 2026-10-02 |
| 103.51.2.0/23 | AS45766Triangle Services Limited. | Bangladesh | Valid | 18 | 2026-10-06 |
| 103.51.2.0/24 | AS45766Triangle Services Limited. | Bangladesh | Valid | 17 | 2026-10-02 |
| 103.51.3.0/24 | AS45766Triangle Services Limited. | Bangladesh | Valid | 17 | 2026-10-02 |
| 103.51.4.0/22 | AS131896SSI Lab Inc. | Japan | Not found | 17 | 2026-10-02 |
| 103.51.8.0/24 | AS133992Chhattisgarh Infotech and Biotech Promotion Society | India | Valid | 17 | 2026-10-02 |
| 103.51.9.0/24 | AS132135Hero MotoCorp Ltd | India | Not found | 17 | 2026-10-02 |
| 103.51.10.0/24 | AS23884Proen Corp Public Company Limited. | Thailand | Not found | 18 | 2026-10-02 |
| 103.51.11.0/24 | AS23884Proen Corp Public Company Limited. | Thailand | Not found | 18 | 2026-10-02 |
| 103.51.12.0/24 | AS13335Cloudflare, Inc. | China | Valid | 18 | 2026-10-02 |
| 103.51.13.0/24 | AS13335Cloudflare, Inc. | China | Valid | 18 | 2026-10-02 |
| 103.51.16.0/22 | AS55915Classic Tech Pvt. Ltd. | Nepal | Valid | 17 | 2026-10-02 |
| 103.51.16.0/24 | AS55915Classic Tech Pvt. Ltd. | Nepal | Valid | 17 | 2026-10-02 |
| 103.51.17.0/24 | AS55915Classic Tech Pvt. Ltd. | Nepal | Valid | 17 | 2026-10-02 |
| 103.51.18.0/24 | AS55915Classic Tech Pvt. Ltd. | Nepal | Valid | 17 | 2026-10-02 |
| 103.51.19.0/24 | AS55915Classic Tech Pvt. Ltd. | Nepal | Valid | 17 | 2026-10-02 |
| 103.51.20.0/22 | AS134004Foxtel Telecommunications Pvt. Ltd. | India | Valid | 17 | 2026-10-02 |
| 103.51.20.0/23 | AS134004Foxtel Telecommunications Pvt. Ltd. | India | Valid | 17 | 2026-10-02 |
| 103.51.22.0/23 | AS134004Foxtel Telecommunications Pvt. Ltd. | India | Valid | 17 | 2026-10-02 |
| 103.51.24.0/24 | AS134937Speed Communication | India | Valid | 17 | 2026-10-02 |
| 103.51.25.0/24 | AS134937Speed Communication | India | Valid | 17 | 2026-10-02 |
| 103.51.26.0/24 | AS134937Speed Communication | India | Valid | 17 | 2026-10-02 |
| 103.51.27.0/24 | AS134937Speed Communication | India | Valid | 17 | 2026-10-02 |
| 103.51.28.0/24 | AS133964iBerry Wireless Pvt Ltd | India | Valid | 17 | 2026-10-02 |
| 103.51.29.0/24 | AS133964iBerry Wireless Pvt Ltd | India | Valid | 17 | 2026-10-02 |
| 103.51.30.0/24 | AS133964iBerry Wireless Pvt Ltd | India | Valid | 17 | 2026-10-02 |
| 103.51.31.0/24 | AS133964iBerry Wireless Pvt Ltd | India | Valid | 17 | 2026-10-02 |
| 103.51.32.0/22 | AS21769Colocation America Corporation | United States | Valid | 17 | 2026-10-02 |
| 103.51.32.0/24 | AS54103MOD Mission Critical, LLC | United States | Valid | 17 | 2026-10-02 |
| 103.51.33.0/24 | AS54103MOD Mission Critical, LLC | United States | Valid | 17 | 2026-10-02 |
| 103.51.34.0/24 | AS54103MOD Mission Critical, LLC | United States | Valid | 17 | 2026-10-02 |
| 103.51.35.0/24 | AS54103MOD Mission Critical, LLC | United States | Valid | 17 | 2026-10-02 |
| 103.51.36.0/22 | AS137445PF LINK SYSTEMS | Japan | Valid | 17 | 2026-10-02 |
| 103.51.40.0/24 | AS134070Legal Aid Commission of NSW | Australia | Valid | 17 | 2026-10-02 |
| 103.51.41.0/24 | AS133936X86 Network Sdn Bhd | Malaysia | Valid | 17 | 2026-10-02 |
| 103.51.43.0/24 | AS133936X86 Network Sdn Bhd | Malaysia | Valid | 17 | 2026-10-02 |
| 103.51.44.0/24 | AS133819PT CITRA INFOMEDIA | Indonesia | Valid | 17 | 2026-10-02 |
| 103.51.45.0/24 | AS133819PT CITRA INFOMEDIA | Indonesia | Valid | 17 | 2026-10-02 |
| 103.51.46.0/24 | AS133819PT CITRA INFOMEDIA | Indonesia | Valid | 17 | 2026-10-02 |
| 103.51.47.0/24 | AS133819PT CITRA INFOMEDIA | Indonesia | Valid | 17 | 2026-10-02 |
| 103.51.48.0/23 | AS10204Arcnet NTT MSC ISP | Malaysia | Valid | 17 | 2026-10-02 |
| 103.51.50.0/23 | AS10204Arcnet NTT MSC ISP | Malaysia | Valid | 17 | 2026-10-02 |
| 103.51.50.0/24 | AS10204Arcnet NTT MSC ISP | Malaysia | Valid | 17 | 2026-10-02 |
| 103.51.51.0/24 | AS10204Arcnet NTT MSC ISP | Malaysia | Valid | 17 | 2026-10-02 |
| 103.51.52.0/24 | AS150669Speed Net Connection | Bangladesh | Valid | 17 | 2026-10-02 |
| 103.51.53.0/24 | AS137048X-LINK LIMITED | Bangladesh | Valid | 18 | 2026-10-02 |
| 103.51.54.0/24 | AS154026AS SAI COMMUNICATION SERVICES PRIVATE LIMITED | India | Valid | 17 | 2026-10-02 |
| 103.51.55.0/24 | AS154026AS SAI COMMUNICATION SERVICES PRIVATE LIMITED | India | Valid | 17 | 2026-10-02 |
| 103.51.56.0/22 | AS45775WISH NET PRIVATE LIMITED | India | Valid | 17 | 2026-10-02 |
| 103.51.60.0/24 | AS134074Golomt Bank | Mongolia | Valid | 17 | 2026-10-02 |
| 103.51.61.0/24 | AS2764AAPT Limited | Australia | Not found | 17 | 2026-10-02 |
| 103.51.62.0/24 | AS152711 | Australia | Not found | 1 | 2026-10-02 |
| 103.51.63.0/24 | AS152711 | Australia | Not found | 1 | 2026-10-02 |
| 103.51.64.0/24 | AS134073The Revenue Department | Thailand | Not found | 17 | 2026-10-02 |
| 103.51.65.0/24 | AS134073The Revenue Department | Thailand | Not found | 17 | 2026-10-02 |
| 103.51.66.0/24 | AS134073The Revenue Department | Thailand | Not found | 17 | 2026-10-02 |
| 103.51.67.0/24 | AS134073The Revenue Department | Thailand | Not found | 17 | 2026-10-02 |
| 103.51.68.0/22 | AS134076M2000CN | Australia | Valid | 17 | 2026-10-02 |
| 103.51.72.0/24 | AS132137Shree Omkar Infocom Pvt Ltd | India | Valid | 17 | 2026-10-02 |
| 103.51.73.0/24 | AS132137Shree Omkar Infocom Pvt Ltd | India | Valid | 17 | 2026-10-02 |
| 103.51.74.0/24 | AS132137Shree Omkar Infocom Pvt Ltd | India | Valid | 17 | 2026-10-02 |
| 103.51.75.0/24 | AS132137Shree Omkar Infocom Pvt Ltd | India | Valid | 17 | 2026-10-02 |
| 103.51.76.0/24 | AS34977PROCONO S.A. | Spain | Not found | 17 | 2026-10-02 |
| 103.51.77.0/24 | AS34977PROCONO S.A. | Spain | Not found | 17 | 2026-10-02 |
| 103.51.78.0/24 | AS34977PROCONO S.A. | Spain | Not found | 17 | 2026-10-02 |
| 103.51.79.0/24 | AS34977PROCONO S.A. | Spain | Not found | 17 | 2026-10-02 |
| 103.51.80.0/22 | AS10010TOKAI Communications Corporation | Japan | Not found | 17 | 2026-10-02 |
| 103.51.84.0/24 | AS150667IT Future | Bangladesh | Valid | 18 | 2026-10-02 |
| 103.51.85.0/24 | AS150667IT Future | Bangladesh | Valid | 18 | 2026-10-02 |
| 103.51.88.0/23 | AS131630Lazco Corporation | Taiwan | Valid | 17 | 2026-10-02 |
| 103.51.88.0/24 | AS197537WISDOM CLOUD INTERNET TECHNOLOGY PTE. LTD. | Taiwan | Valid | 17 | 2026-10-02 |
| 103.51.89.0/24 | AS197537WISDOM CLOUD INTERNET TECHNOLOGY PTE. LTD. | Taiwan | Valid | 17 | 2026-10-02 |
| 103.51.96.0/23 | AS149156Bac Ninh Department of Information and Communications | Vietnam | Not found | 15 | 2026-10-02 |
| 103.51.98.0/23 | AS150469PT Melesat Prima Nusantara | Indonesia | Valid | 18 | 2026-10-02 |
| 103.51.98.0/24 | AS150469PT Melesat Prima Nusantara | Indonesia | Valid | 18 | 2026-10-02 |
| 103.51.99.0/24 | AS150469PT Melesat Prima Nusantara | Indonesia | Valid | 18 | 2026-10-02 |
| 103.51.100.0/23 | AS149052KiwiData | New Zealand | Valid | 17 | 2026-10-02 |
| 103.51.100.0/24 | AS149052KiwiData | New Zealand | Valid | 17 | 2026-10-02 |
| 103.51.101.0/24 | AS149052KiwiData | New Zealand | Valid | 17 | 2026-10-02 |
| 103.51.102.0/24 | AS15084Concentrix CVG Corporation | United States | Not found | 17 | 2026-10-02 |
| 103.51.103.0/24 | AS139432Diskominfo Kab. Bogor | Indonesia | Valid | 18 | 2026-10-02 |
| 103.51.104.0/23 | AS149157Digital Transformation Center - An Giang Department of Science and Technology | Vietnam | Not found | 17 | 2026-10-02 |
| 103.51.106.0/23 | AS137289PT. SIGMA CIPTA CARAKA | Indonesia | Valid | 18 | 2026-10-02 |
| 103.51.106.0/24 | AS137289PT. SIGMA CIPTA CARAKA | Indonesia | Valid | 17 | 2026-10-02 |
| 103.51.107.0/24 | AS137289PT. SIGMA CIPTA CARAKA | Indonesia | Valid | 17 | 2026-10-02 |
| 103.51.108.0/24 | AS63888DATAWING LIMITED | Hong Kong | Valid | 18 | 2026-10-02 |
| 103.51.109.0/24 | AS63888DATAWING LIMITED | Hong Kong | Valid | 18 | 2026-10-02 |
| 103.51.110.0/24 | AS63888DATAWING LIMITED | Hong Kong | Valid | 1 | 2026-10-29 |
| 103.51.112.0/22 | AS134090Leaptel | Australia | Valid | 17 | 2026-10-02 |
| 103.51.116.0/24 | AS17426Primesoftex Ltd | India | Valid | 17 | 2026-10-02 |
| 103.51.117.0/24 | AS17426Primesoftex Ltd | India | Valid | 17 | 2026-10-02 |
| 103.51.118.0/24 | AS17426Primesoftex Ltd | India | Valid | 17 | 2026-10-02 |
| 103.51.119.0/24 | AS17426Primesoftex Ltd | India | Valid | 17 | 2026-10-02 |
| 103.51.120.0/24 | AS63741DCNET TELECOM | Vietnam | Valid | 17 | 2026-10-02 |
| 103.51.121.0/24 | AS63741DCNET TELECOM | Vietnam | Valid | 17 | 2026-10-02 |
| 103.51.122.0/24 | AS150470PT Abadi Lentera Wahana Indonesia | Indonesia | Valid | 18 | 2026-10-02 |
| 103.51.123.0/24 | AS150470PT Abadi Lentera Wahana Indonesia | Indonesia | Valid | 18 | 2026-10-02 |
| 103.51.128.0/24 | AS152718Cloud Point | Bangladesh | Valid | 18 | 2026-10-02 |
Every /24 inside it
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.