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HomeAll IP Ranges203.0.0.0/8203.123.0.0/16
65,536 routable14 ASes
/16 subnet

203.123.0.0/16

Where this subnet is, who announces it, and what our databases hold in it. Below, every /24 inside it; open one for its addresses.

203.122.0.0/16203.124.0.0/16
65,536
routable addresses
65,536
geolocated
8
countries
14
announcing ASes
38
announced prefixes
1,460
anonymous addresses

Where it is

Addresses IP Geolocation places in each country, as a share of those it places.

  1. India21,252 · 32.43%
  2. Australia12,288 · 18.75%
  3. Indonesia9,724 · 14.84%
  4. Singapore9,472 · 14.45%
  5. South Korea8,192 · 12.50%
  6. South Africa4,096 · 6.25%
  7. China256 · 0.39%
  8. United States256 · 0.39%

Who announces it

Each /24 counted for the AS announcing most of it, as a share of the routable addresses.

  1. AS4637Telstra Global16,384 · 25.00%
  2. AS17547M1 NET LTD8,192 · 12.50%
  3. AS17597SK Broadband Co Ltd8,192 · 12.50%
  4. AS38195Superloop8,192 · 12.50%
  5. AS136907HUAWEI CLOUDS4,096 · 6.25%
  6. AS10029SHYAM SPECTRA PVT LTD3,840 · 5.86%
  7. AS136994Southern Phone Company Ltd1,792 · 2.73%
  8. AS37989DCS1 Pte. Ltd.1,024 · 1.56%
  9. AS38755Biro Statistics1,024 · 1.56%
  10. AS4855Pacific Link Indonesia512 · 0.78%

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.

Announced prefixes

Every prefix inside this block that BGP Route saw announced, with its origin and RPKI status.

38 prefixes
PREFIXORIGINCOUNTRYRPKIPEERSFIRST SEEN
203.123.0.0/19AS17547M1 NET LTDSingaporevalid172026-10-02
203.123.0.0/20AS17547M1 NET LTDSingaporevalid172026-10-02
203.123.16.0/20AS17547M1 NET LTDSingaporevalid172026-10-02
203.123.32.0/23AS10029SHYAM SPECTRA PVT LTDIndiavalid172026-10-02
203.123.34.0/23AS10029SHYAM SPECTRA PVT LTDIndiavalid172026-10-02
203.123.36.0/24AS10029SHYAM SPECTRA PVT LTDIndiavalid172026-10-02
203.123.38.0/23AS10029SHYAM SPECTRA PVT LTDIndiavalid172026-10-02
203.123.40.0/21AS10029SHYAM SPECTRA PVT LTDIndiavalid172026-10-02
203.123.40.0/23AS10029SHYAM SPECTRA PVT LTDIndiavalid172026-10-02
203.123.40.0/24AS10029SHYAM SPECTRA PVT LTDIndiavalid172026-10-02
203.123.41.0/24AS10029SHYAM SPECTRA PVT LTDIndiavalid172026-10-02
203.123.46.0/24AS10029SHYAM SPECTRA PVT LTDIndiavalid172026-10-02
203.123.48.0/22AS37989DCS1 Pte. Ltd.Singaporevalid172026-10-02
203.123.53.0/24AS153305Broadside Quanta Pte LtdIndiavalid172026-10-02
203.123.54.0/24AS140982DCS1 Pte. Ltd.Indiavalid172026-10-02
203.123.56.0/24AS139460PT Maxindo Mitra SolusiIndonesianot found182026-10-02
203.123.57.0/24AS139460PT Maxindo Mitra SolusiIndonesianot found182026-10-02
203.123.59.0/24AS31898Oracle CorporationUnited Statesvalid172026-10-02
203.123.60.0/24AS38755Biro StatisticsIndonesiavalid182026-10-02
203.123.61.0/24AS38755Biro StatisticsIndonesiavalid182026-10-02
203.123.62.0/24AS38755Biro StatisticsIndonesiavalid172026-10-02
203.123.63.0/24AS38755Biro StatisticsIndonesiavalid182026-10-02
203.123.64.0/24AS136994Southern Phone Company LtdAustralianot found172026-10-02
203.123.65.0/24AS136994Southern Phone Company LtdAustralianot found172026-10-02
203.123.66.0/24AS136994Southern Phone Company LtdAustralianot found172026-10-02
203.123.67.0/24AS136994Southern Phone Company LtdAustralianot found172026-10-02
203.123.68.0/24AS136994Southern Phone Company LtdAustralianot found172026-10-02
203.123.78.0/24AS136994Southern Phone Company LtdAustralianot found172026-10-02
203.123.79.0/24AS136994Southern Phone Company LtdAustralianot found172026-10-02
203.123.80.0/20AS136907HUAWEI CLOUDSSouth Africavalid172026-10-02
203.123.96.0/19AS38195SuperloopAustraliavalid172026-10-02
203.123.128.0/18AS4637Telstra GlobalIndiavalid172026-10-02
203.123.192.0/19AS17597SK Broadband Co LtdSouth Koreanot found182026-10-02
203.123.202.0/23AS17597SK Broadband Co LtdSouth Koreanot found182026-10-02
203.123.220.0/24AS17597SK Broadband Co LtdSouth Koreanot found182026-10-02
203.123.224.0/23AS4855Pacific Link IndonesiaIndonesianot found182026-10-02
203.123.224.0/24AS4855Pacific Link IndonesiaIndonesianot found182026-10-02
203.123.225.0/24AS4855Pacific Link IndonesiaIndonesianot found182026-10-02

Every /24 inside it

203.123.0.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.1.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.2.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.3.0/24SingaporeAS17547M1 NET LTD0256100.00%
203.123.4.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.5.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.6.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.7.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.8.0/24SingaporeAS17547M1 NET LTD0256100.00%
203.123.9.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.10.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.11.0/24SingaporeAS17547M1 NET LTD0256100.00%
203.123.12.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.13.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.14.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.15.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.16.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.17.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.18.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.19.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.20.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.21.0/24SingaporeAS17547M1 NET LTD0256100.00%
203.123.22.0/24SingaporeAS17547M1 NET LTD0256100.00%
203.123.23.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.24.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.25.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.26.0/24SingaporeAS17547M1 NET LTD2256100.00%
203.123.27.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.28.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.29.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.30.0/24SingaporeAS17547M1 NET LTD000.00%
203.123.31.0/24SingaporeAS17547M1 NET LTD0256100.00%
203.123.32.0/24IndiaAS10029SHYAM SPECTRA PVT LTD200.78%
203.123.33.0/24IndiaAS10029SHYAM SPECTRA PVT LTD2256100.00%
203.123.34.0/24IndiaAS10029SHYAM SPECTRA PVT LTD903.52%
203.123.35.0/24IndiaAS10029SHYAM SPECTRA PVT LTD000.00%
203.123.36.0/24IndiaAS10029SHYAM SPECTRA PVT LTD7256100.00%
203.123.37.0/24India—000.00%
203.123.38.0/24IndiaAS10029SHYAM SPECTRA PVT LTD12256100.00%
203.123.39.0/24IndiaAS10029SHYAM SPECTRA PVT LTD401.56%
203.123.40.0/24IndiaAS10029SHYAM SPECTRA PVT LTD62024.22%
203.123.41.0/24IndiaAS10029SHYAM SPECTRA PVT LTD803.13%
203.123.42.0/24IndiaAS10029SHYAM SPECTRA PVT LTD000.00%
203.123.43.0/24IndiaAS10029SHYAM SPECTRA PVT LTD000.00%
203.123.44.0/24IndiaAS10029SHYAM SPECTRA PVT LTD000.00%
203.123.45.0/24IndiaAS10029SHYAM SPECTRA PVT LTD000.00%
203.123.46.0/24IndiaAS10029SHYAM SPECTRA PVT LTD2007.81%
203.123.47.0/24IndiaAS10029SHYAM SPECTRA PVT LTD903.52%
203.123.48.0/24SingaporeAS37989DCS1 Pte. Ltd.1256100.00%
203.123.49.0/24SingaporeAS37989DCS1 Pte. Ltd.000.00%
203.123.50.0/24SingaporeAS37989DCS1 Pte. Ltd.000.00%
203.123.51.0/24IndiaAS37989DCS1 Pte. Ltd.0256100.00%
203.123.52.0/24Singapore—000.00%
203.123.53.0/24IndiaAS153305Broadside Quanta Pte Ltd0256100.00%
203.123.54.0/24IndiaAS140982DCS1 Pte. Ltd.0256100.00%
203.123.55.0/24Singapore—000.00%
203.123.56.0/24IndonesiaAS139460PT Maxindo Mitra Solusi29256100.00%
203.123.57.0/24IndonesiaAS139460PT Maxindo Mitra Solusi30256100.00%
203.123.58.0/24China—000.00%
203.123.59.0/24United StatesAS31898Oracle Corporation0256100.00%
203.123.60.0/24IndonesiaAS38755Biro Statistics3256100.00%
203.123.61.0/24IndonesiaAS38755Biro Statistics2208.59%
203.123.62.0/24IndonesiaAS38755Biro Statistics200.78%
203.123.63.0/24IndonesiaAS38755Biro Statistics000.00%
203.123.64.0/24AustraliaAS136994Southern Phone Company Ltd185072.27%
203.123.65.0/24AustraliaAS136994Southern Phone Company Ltd170066.41%
203.123.66.0/24AustraliaAS136994Southern Phone Company Ltd186072.66%
203.123.67.0/24AustraliaAS136994Southern Phone Company Ltd165064.45%
203.123.68.0/24AustraliaAS136994Southern Phone Company Ltd000.00%
203.123.69.0/24Australia—000.00%
203.123.70.0/24Australia—000.00%
203.123.71.0/24Australia—000.00%
203.123.72.0/24Australia—000.00%
203.123.73.0/24Australia—000.00%
203.123.74.0/24Australia—000.00%
203.123.75.0/24Australia—000.00%
203.123.76.0/24Australia—000.00%
203.123.77.0/24Australia—000.00%
203.123.78.0/24AustraliaAS136994Southern Phone Company Ltd000.00%
203.123.79.0/24AustraliaAS136994Southern Phone Company Ltd143055.86%
203.123.80.0/24South AfricaAS136907HUAWEI CLOUDS4256100.00%
203.123.81.0/24South AfricaAS136907HUAWEI CLOUDS4256100.00%
203.123.82.0/24South AfricaAS136907HUAWEI CLOUDS7256100.00%
203.123.83.0/24South AfricaAS136907HUAWEI CLOUDS4256100.00%
203.123.84.0/24South AfricaAS136907HUAWEI CLOUDS0256100.00%
203.123.85.0/24South AfricaAS136907HUAWEI CLOUDS6256100.00%
203.123.86.0/24South AfricaAS136907HUAWEI CLOUDS10256100.00%
203.123.87.0/24South AfricaAS136907HUAWEI CLOUDS5256100.00%
203.123.88.0/24South AfricaAS136907HUAWEI CLOUDS0256100.00%
203.123.89.0/24South AfricaAS136907HUAWEI CLOUDS0256100.00%
203.123.90.0/24South AfricaAS136907HUAWEI CLOUDS0256100.00%
203.123.91.0/24South AfricaAS136907HUAWEI CLOUDS0256100.00%
203.123.92.0/24South AfricaAS136907HUAWEI CLOUDS0256100.00%
203.123.93.0/24South AfricaAS136907HUAWEI CLOUDS0256100.00%
203.123.94.0/24South AfricaAS136907HUAWEI CLOUDS0256100.00%
203.123.95.0/24South AfricaAS136907HUAWEI CLOUDS0256100.00%
203.123.96.0/24AustraliaAS38195Superloop903.52%
203.123.97.0/24AustraliaAS38195Superloop21256100.00%
203.123.98.0/24AustraliaAS38195Superloop401.56%
203.123.99.0/24AustraliaAS38195Superloop602.34%
203.123.100.0/24AustraliaAS38195Superloop401.56%
203.123.101.0/24AustraliaAS38195Superloop1003.91%
203.123.102.0/24AustraliaAS38195Superloop501.95%
203.123.103.0/24AustraliaAS38195Superloop9256100.00%
203.123.104.0/24AustraliaAS38195Superloop803.13%
203.123.105.0/24AustraliaAS38195Superloop602.34%
203.123.106.0/24AustraliaAS38195Superloop141055.08%
203.123.107.0/24AustraliaAS38195Superloop803.13%
203.123.108.0/24AustraliaAS38195Superloop2256100.00%
203.123.109.0/24AustraliaAS38195Superloop1104.30%
203.123.110.0/24AustraliaAS38195Superloop100.39%
203.123.111.0/24AustraliaAS38195Superloop401.56%
203.123.112.0/24AustraliaAS38195Superloop401.56%
203.123.113.0/24AustraliaAS38195Superloop602.34%
203.123.114.0/24AustraliaAS38195Superloop301.17%
203.123.115.0/24AustraliaAS38195Superloop7256100.00%
203.123.116.0/24AustraliaAS38195Superloop4256100.00%
203.123.117.0/24AustraliaAS38195Superloop602.34%
203.123.118.0/24AustraliaAS38195Superloop803.13%
203.123.119.0/24AustraliaAS38195Superloop12256100.00%
203.123.120.0/24AustraliaAS38195Superloop4256100.00%
203.123.121.0/24AustraliaAS38195Superloop000.00%
203.123.122.0/24AustraliaAS38195Superloop401.56%
203.123.123.0/24AustraliaAS38195Superloop803.13%
203.123.124.0/24AustraliaAS38195Superloop17256100.00%
203.123.125.0/24AustraliaAS38195Superloop301.17%
203.123.126.0/24AustraliaAS38195Superloop100.39%
203.123.127.0/24AustraliaAS38195Superloop000.00%
203.123.128.0/24IndiaAS4637Telstra Global000.00%
203.123.129.0/24IndiaAS4637Telstra Global000.00%
203.123.130.0/24IndiaAS4637Telstra Global000.00%
203.123.131.0/24IndiaAS4637Telstra Global000.00%
203.123.132.0/24IndiaAS4637Telstra Global000.00%
203.123.133.0/24IndiaAS4637Telstra Global000.00%
203.123.134.0/24IndiaAS4637Telstra Global000.00%
203.123.135.0/24IndiaAS4637Telstra Global000.00%
203.123.136.0/24IndiaAS4637Telstra Global000.00%
203.123.137.0/24IndiaAS4637Telstra Global000.00%
203.123.138.0/24IndiaAS4637Telstra Global000.00%
203.123.139.0/24IndiaAS4637Telstra Global000.00%
203.123.140.0/24IndiaAS4637Telstra Global401.56%
203.123.141.0/24IndiaAS4637Telstra Global000.00%
203.123.142.0/24IndiaAS4637Telstra Global000.00%
203.123.143.0/24IndiaAS4637Telstra Global000.00%
203.123.144.0/24IndiaAS4637Telstra Global000.00%
203.123.145.0/24IndiaAS4637Telstra Global301.17%
203.123.146.0/24IndiaAS4637Telstra Global100.39%
203.123.147.0/24IndiaAS4637Telstra Global000.00%
203.123.148.0/24IndiaAS4637Telstra Global000.00%
203.123.149.0/24IndiaAS4637Telstra Global000.00%
203.123.150.0/24IndiaAS4637Telstra Global000.00%
203.123.151.0/24IndiaAS4637Telstra Global000.00%
203.123.152.0/24IndiaAS4637Telstra Global000.00%
203.123.153.0/24IndiaAS4637Telstra Global000.00%
203.123.154.0/24IndiaAS4637Telstra Global000.00%
203.123.155.0/24IndiaAS4637Telstra Global000.00%
203.123.156.0/24IndiaAS4637Telstra Global000.00%
203.123.157.0/24IndiaAS4637Telstra Global000.00%
203.123.158.0/24IndiaAS4637Telstra Global000.00%
203.123.159.0/24IndiaAS4637Telstra Global000.00%
203.123.160.0/24IndiaAS4637Telstra Global000.00%
203.123.161.0/24IndiaAS4637Telstra Global000.00%
203.123.162.0/24IndiaAS4637Telstra Global000.00%
203.123.163.0/24IndiaAS4637Telstra Global000.00%
203.123.164.0/24IndiaAS4637Telstra Global000.00%
203.123.165.0/24IndiaAS4637Telstra Global000.00%
203.123.166.0/24IndiaAS4637Telstra Global000.00%
203.123.167.0/24IndiaAS4637Telstra Global000.00%
203.123.168.0/24IndiaAS4637Telstra Global000.00%
203.123.169.0/24IndiaAS4637Telstra Global000.00%
203.123.170.0/24IndiaAS4637Telstra Global000.00%
203.123.171.0/24IndiaAS4637Telstra Global000.00%
203.123.172.0/24IndiaAS4637Telstra Global000.00%
203.123.173.0/24IndiaAS4637Telstra Global000.00%
203.123.174.0/24IndiaAS4637Telstra Global000.00%
203.123.175.0/24IndiaAS4637Telstra Global000.00%
203.123.176.0/24IndiaAS4637Telstra Global000.00%
203.123.177.0/24IndiaAS4637Telstra Global000.00%
203.123.178.0/24IndiaAS4637Telstra Global000.00%
203.123.179.0/24IndiaAS4637Telstra Global000.00%
203.123.180.0/24IndiaAS4637Telstra Global000.00%
203.123.181.0/24IndiaAS4637Telstra Global000.00%
203.123.182.0/24IndiaAS4637Telstra Global000.00%
203.123.183.0/24IndiaAS4637Telstra Global000.00%
203.123.184.0/24IndiaAS4637Telstra Global000.00%
203.123.185.0/24IndiaAS4637Telstra Global000.00%
203.123.186.0/24IndiaAS4637Telstra Global000.00%
203.123.187.0/24IndiaAS4637Telstra Global000.00%
203.123.188.0/24IndiaAS4637Telstra Global000.00%
203.123.189.0/24IndiaAS4637Telstra Global000.00%
203.123.190.0/24IndiaAS4637Telstra Global000.00%
203.123.191.0/24IndiaAS4637Telstra Global000.00%
203.123.192.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.193.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.194.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.195.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.196.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.197.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.198.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.199.0/24South KoreaAS17597SK Broadband Co Ltd100.39%
203.123.200.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.201.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.202.0/24South KoreaAS17597SK Broadband Co Ltd200.78%
203.123.203.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.204.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.205.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.206.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.207.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.208.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.209.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.210.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.211.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.212.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.213.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.214.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.215.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.216.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.217.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.218.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.219.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.220.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.221.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.222.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.223.0/24South KoreaAS17597SK Broadband Co Ltd000.00%
203.123.224.0/24IndonesiaAS4855Pacific Link Indonesia0256100.00%
203.123.225.0/24IndonesiaAS4855Pacific Link Indonesia000.00%
203.123.226.0/24Indonesia—000.00%
203.123.227.0/24Indonesia—000.00%
203.123.228.0/24Indonesia—000.00%
203.123.229.0/24Indonesia—000.00%
203.123.230.0/24Indonesia—000.00%
203.123.231.0/24Indonesia—000.00%
203.123.232.0/24Indonesia—000.00%
203.123.233.0/24Indonesia—000.00%
203.123.234.0/24Indonesia—000.00%
203.123.235.0/24Indonesia—000.00%
203.123.236.0/24Indonesia—000.00%
203.123.237.0/24Indonesia—000.00%
203.123.238.0/24Indonesia—000.00%
203.123.239.0/24Indonesia—000.00%
203.123.240.0/24Indonesia—000.00%
203.123.241.0/24Indonesia—000.00%
203.123.242.0/24Indonesia—000.00%
203.123.243.0/24Indonesia—000.00%
203.123.244.0/24Indonesia—000.00%
203.123.245.0/24Indonesia—000.00%
203.123.246.0/24Indonesia—000.00%
203.123.247.0/24Indonesia—000.00%
203.123.248.0/24Indonesia—000.00%
203.123.249.0/24Indonesia—000.00%
203.123.250.0/24Indonesia—000.00%
203.123.251.0/24Indonesia—000.00%
203.123.252.0/24Indonesia—000.00%
203.123.253.0/24Indonesia—000.00%
203.123.254.0/24Indonesia—000.00%
203.123.255.0/24Indonesia—000.00%
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