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InternetData
65,536 routable11 ASes
/16 subnet

123.255.0.0/16

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
7
countries
11
announcing ASes
30
announced prefixes
659
anonymous addresses

Where it is

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

  1. Japan22,528 · 34.38%
  2. Hong Kong16,384 · 25.00%
  3. New Zealand16,384 · 25.00%
  4. Australia4,096 · 6.25%
  5. Indonesia2,048 · 3.13%
  6. India2,048 · 3.13%
  7. Philippines2,048 · 3.13%

Who announces it

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

  1. AS9374EDION Corporation16,384 · 25.00%
  2. AS236552degrees Networks Limited16,128 · 24.61%
  3. AS4641The Hong Kong Internet Exchange Limited8,192 · 12.50%
  4. AS3661The Chinese University of Hong Kong2,048 · 3.13%
  5. AS10001Mics Network Corporation2,048 · 3.13%
  6. AS17698COMMUNITY NETWORK CENTER INCORPORATED.2,048 · 3.13%
  7. AS24259kanuma cable television Corporation2,048 · 3.13%
  8. AS24521PT. DATA Utama Dinamika2,048 · 3.13%
  9. AS45536Readylink Internet Services Limited1,024 · 1.56%
  10. AS45560TOPNET. IP Transit AS512 · 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.

30 prefixes
PREFIXORIGINCOUNTRYRPKIPEERSFIRST SEEN
123.255.0.0/18AS236552degrees Networks LimitedNew ZealandValid182026-10-02
123.255.0.0/19AS236552degrees Networks LimitedNew ZealandValid182026-10-02
123.255.4.0/23AS236552degrees Networks LimitedNew ZealandValid182026-10-02
123.255.13.0/24AS38084Ethan GroupNew ZealandValid182026-10-02
123.255.32.0/19AS236552degrees Networks LimitedNew ZealandValid182026-10-02
123.255.64.0/21AS3661The Chinese University of Hong KongHong KongNot found192026-10-02
123.255.96.0/19AS4641The Hong Kong Internet Exchange LimitedHong KongNot found172026-10-02
123.255.128.0/18AS9374EDION CorporationJapanValid172026-10-02
123.255.192.0/21AS17698COMMUNITY NETWORK CENTER INCORPORATED.JapanValid172026-10-02
123.255.200.0/21AS24521PT. DATA Utama DinamikaIndonesiaValid172026-10-02
123.255.200.0/22AS24521PT. DATA Utama DinamikaIndonesiaValid172026-10-02
123.255.200.0/23AS24521PT. DATA Utama DinamikaIndonesiaValid172026-10-02
123.255.200.0/24AS24521PT. DATA Utama DinamikaIndonesiaValid172026-10-02
123.255.201.0/24AS24521PT. DATA Utama DinamikaIndonesiaValid172026-10-02
123.255.202.0/23AS24521PT. DATA Utama DinamikaIndonesiaValid172026-10-02
123.255.202.0/24AS24521PT. DATA Utama DinamikaIndonesiaValid172026-10-02
123.255.203.0/24AS24521PT. DATA Utama DinamikaIndonesiaValid172026-10-02
123.255.204.0/22AS24521PT. DATA Utama DinamikaIndonesiaValid172026-10-02
123.255.204.0/23AS24521PT. DATA Utama DinamikaIndonesiaValid172026-10-02
123.255.204.0/24AS24521PT. DATA Utama DinamikaIndonesiaValid172026-10-02
123.255.205.0/24AS24521PT. DATA Utama DinamikaIndonesiaValid172026-10-02
123.255.207.0/24AS24521PT. DATA Utama DinamikaIndonesiaValid172026-10-02
123.255.230.0/24AS45560TOPNET. IP Transit ASPhilippinesNot found172026-10-02
123.255.231.0/24AS45560TOPNET. IP Transit ASPhilippinesNot found172026-10-02
123.255.232.0/21AS24259kanuma cable television CorporationJapanValid172026-10-02
123.255.240.0/21AS10001Mics Network CorporationJapanValid172026-10-02
123.255.248.0/24AS45536Readylink Internet Services LimitedIndiaValid172026-10-02
123.255.249.0/24AS45536Readylink Internet Services LimitedIndiaValid172026-10-02
123.255.250.0/24AS45536Readylink Internet Services LimitedIndiaValid172026-10-02
123.255.251.0/24AS45536Readylink Internet Services LimitedIndiaValid172026-10-02

Every /24 inside it

123.255.0.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.1.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.2.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.3.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.4.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.5.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.6.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.7.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.8.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.9.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.10.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.11.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.12.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.13.0/24New ZealandAS38084Ethan Group000.00%
123.255.14.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.15.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.16.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.17.0/24New ZealandAS236552degrees Networks Limited1256100.00%
123.255.18.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.19.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.20.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.21.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.22.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.23.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.24.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.25.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.26.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.27.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.28.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.29.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.30.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.31.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.32.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.33.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.34.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.35.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.36.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.37.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.38.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.39.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.40.0/24New ZealandAS236552degrees Networks Limited702.73%
123.255.41.0/24New ZealandAS236552degrees Networks Limited602.34%
123.255.42.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.43.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.44.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.45.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.46.0/24New ZealandAS236552degrees Networks Limited401.56%
123.255.47.0/24New ZealandAS236552degrees Networks Limited401.56%
123.255.48.0/24New ZealandAS236552degrees Networks Limited501.95%
123.255.49.0/24New ZealandAS236552degrees Networks Limited200.78%
123.255.50.0/24New ZealandAS236552degrees Networks Limited401.56%
123.255.51.0/24New ZealandAS236552degrees Networks Limited301.17%
123.255.52.0/24New ZealandAS236552degrees Networks Limited401.56%
123.255.53.0/24New ZealandAS236552degrees Networks Limited100.39%
123.255.54.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.55.0/24New ZealandAS236552degrees Networks Limited000.00%
123.255.56.0/24New ZealandAS236552degrees Networks Limited100.39%
123.255.57.0/24New ZealandAS236552degrees Networks Limited301.17%
123.255.58.0/24New ZealandAS236552degrees Networks Limited401.56%
123.255.59.0/24New ZealandAS236552degrees Networks Limited100.39%
123.255.60.0/24New ZealandAS236552degrees Networks Limited200.78%
123.255.61.0/24New ZealandAS236552degrees Networks Limited501.95%
123.255.62.0/24New ZealandAS236552degrees Networks Limited401.56%
123.255.63.0/24New ZealandAS236552degrees Networks Limited702.73%
123.255.64.0/24Hong KongAS3661The Chinese University of Hong Kong1204.69%
123.255.65.0/24Hong KongAS3661The Chinese University of Hong Kong000.00%
123.255.66.0/24Hong KongAS3661The Chinese University of Hong Kong100.39%
123.255.67.0/24Hong KongAS3661The Chinese University of Hong Kong000.00%
123.255.68.0/24Hong KongAS3661The Chinese University of Hong Kong000.00%
123.255.69.0/24Hong KongAS3661The Chinese University of Hong Kong000.00%
123.255.70.0/24Hong KongAS3661The Chinese University of Hong Kong000.00%
123.255.71.0/24Hong KongAS3661The Chinese University of Hong Kong000.00%
123.255.72.0/24Hong Kong—000.00%
123.255.73.0/24Hong Kong—000.00%
123.255.74.0/24Hong Kong—000.00%
123.255.75.0/24Hong Kong—000.00%
123.255.76.0/24Hong Kong—000.00%
123.255.77.0/24Hong Kong—000.00%
123.255.78.0/24Hong Kong—000.00%
123.255.79.0/24Hong Kong—000.00%
123.255.80.0/24Hong Kong—000.00%
123.255.81.0/24Hong Kong—000.00%
123.255.82.0/24Hong Kong—000.00%
123.255.83.0/24Hong Kong—000.00%
123.255.84.0/24Hong Kong—000.00%
123.255.85.0/24Hong Kong—000.00%
123.255.86.0/24Hong Kong—000.00%
123.255.87.0/24Hong Kong—000.00%
123.255.88.0/24Hong Kong—000.00%
123.255.89.0/24Hong Kong—000.00%
123.255.90.0/24Hong Kong—000.00%
123.255.91.0/24Hong Kong—000.00%
123.255.92.0/24Hong Kong—000.00%
123.255.93.0/24Hong Kong—000.00%
123.255.94.0/24Hong Kong—000.00%
123.255.95.0/24Hong Kong—000.00%
123.255.96.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.97.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.98.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.99.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.100.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.101.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.102.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.103.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited100.39%
123.255.104.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.105.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.106.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.107.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.108.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.109.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.110.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.111.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited100.39%
123.255.112.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.113.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.114.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.115.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.116.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.117.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.118.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.119.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.120.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.121.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.122.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.123.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.124.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.125.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.126.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.127.0/24Hong KongAS4641The Hong Kong Internet Exchange Limited000.00%
123.255.128.0/24JapanAS9374EDION Corporation29011.33%
123.255.129.0/24JapanAS9374EDION Corporation36014.06%
123.255.130.0/24JapanAS9374EDION Corporation29011.33%
123.255.131.0/24JapanAS9374EDION Corporation27010.55%
123.255.132.0/24JapanAS9374EDION Corporation2007.81%
123.255.133.0/24JapanAS9374EDION Corporation29011.33%
123.255.134.0/24JapanAS9374EDION Corporation28010.94%
123.255.135.0/24JapanAS9374EDION Corporation29011.33%
123.255.136.0/24JapanAS9374EDION Corporation000.00%
123.255.137.0/24JapanAS9374EDION Corporation000.00%
123.255.138.0/24JapanAS9374EDION Corporation000.00%
123.255.139.0/24JapanAS9374EDION Corporation000.00%
123.255.140.0/24JapanAS9374EDION Corporation000.00%
123.255.141.0/24JapanAS9374EDION Corporation000.00%
123.255.142.0/24JapanAS9374EDION Corporation000.00%
123.255.143.0/24JapanAS9374EDION Corporation000.00%
123.255.144.0/24JapanAS9374EDION Corporation000.00%
123.255.145.0/24JapanAS9374EDION Corporation000.00%
123.255.146.0/24JapanAS9374EDION Corporation000.00%
123.255.147.0/24JapanAS9374EDION Corporation000.00%
123.255.148.0/24JapanAS9374EDION Corporation000.00%
123.255.149.0/24JapanAS9374EDION Corporation000.00%
123.255.150.0/24JapanAS9374EDION Corporation000.00%
123.255.151.0/24JapanAS9374EDION Corporation000.00%
123.255.152.0/24JapanAS9374EDION Corporation000.00%
123.255.153.0/24JapanAS9374EDION Corporation000.00%
123.255.154.0/24JapanAS9374EDION Corporation000.00%
123.255.155.0/24JapanAS9374EDION Corporation000.00%
123.255.156.0/24JapanAS9374EDION Corporation000.00%
123.255.157.0/24JapanAS9374EDION Corporation000.00%
123.255.158.0/24JapanAS9374EDION Corporation000.00%
123.255.159.0/24JapanAS9374EDION Corporation000.00%
123.255.160.0/24JapanAS9374EDION Corporation000.00%
123.255.161.0/24JapanAS9374EDION Corporation000.00%
123.255.162.0/24JapanAS9374EDION Corporation000.00%
123.255.163.0/24JapanAS9374EDION Corporation000.00%
123.255.164.0/24JapanAS9374EDION Corporation000.00%
123.255.165.0/24JapanAS9374EDION Corporation000.00%
123.255.166.0/24JapanAS9374EDION Corporation000.00%
123.255.167.0/24JapanAS9374EDION Corporation000.00%
123.255.168.0/24JapanAS9374EDION Corporation000.00%
123.255.169.0/24JapanAS9374EDION Corporation000.00%
123.255.170.0/24JapanAS9374EDION Corporation000.00%
123.255.171.0/24JapanAS9374EDION Corporation000.00%
123.255.172.0/24JapanAS9374EDION Corporation000.00%
123.255.173.0/24JapanAS9374EDION Corporation000.00%
123.255.174.0/24JapanAS9374EDION Corporation000.00%
123.255.175.0/24JapanAS9374EDION Corporation000.00%
123.255.176.0/24JapanAS9374EDION Corporation000.00%
123.255.177.0/24JapanAS9374EDION Corporation000.00%
123.255.178.0/24JapanAS9374EDION Corporation000.00%
123.255.179.0/24JapanAS9374EDION Corporation000.00%
123.255.180.0/24JapanAS9374EDION Corporation000.00%
123.255.181.0/24JapanAS9374EDION Corporation000.00%
123.255.182.0/24JapanAS9374EDION Corporation000.00%
123.255.183.0/24JapanAS9374EDION Corporation000.00%
123.255.184.0/24JapanAS9374EDION Corporation000.00%
123.255.185.0/24JapanAS9374EDION Corporation000.00%
123.255.186.0/24JapanAS9374EDION Corporation000.00%
123.255.187.0/24JapanAS9374EDION Corporation000.00%
123.255.188.0/24JapanAS9374EDION Corporation000.00%
123.255.189.0/24JapanAS9374EDION Corporation000.00%
123.255.190.0/24JapanAS9374EDION Corporation000.00%
123.255.191.0/24JapanAS9374EDION Corporation000.00%
123.255.192.0/24JapanAS17698COMMUNITY NETWORK CENTER INCORPORATED.000.00%
123.255.193.0/24JapanAS17698COMMUNITY NETWORK CENTER INCORPORATED.000.00%
123.255.194.0/24JapanAS17698COMMUNITY NETWORK CENTER INCORPORATED.803.13%
123.255.195.0/24JapanAS17698COMMUNITY NETWORK CENTER INCORPORATED.301.17%
123.255.196.0/24JapanAS17698COMMUNITY NETWORK CENTER INCORPORATED.000.00%
123.255.197.0/24JapanAS17698COMMUNITY NETWORK CENTER INCORPORATED.000.00%
123.255.198.0/24JapanAS17698COMMUNITY NETWORK CENTER INCORPORATED.000.00%
123.255.199.0/24JapanAS17698COMMUNITY NETWORK CENTER INCORPORATED.000.00%
123.255.200.0/24IndonesiaAS24521PT. DATA Utama Dinamika41016.02%
123.255.201.0/24IndonesiaAS24521PT. DATA Utama Dinamika48018.75%
123.255.202.0/24IndonesiaAS24521PT. DATA Utama Dinamika33012.89%
123.255.203.0/24IndonesiaAS24521PT. DATA Utama Dinamika40015.63%
123.255.204.0/24IndonesiaAS24521PT. DATA Utama Dinamika27010.55%
123.255.205.0/24IndonesiaAS24521PT. DATA Utama Dinamika40015.63%
123.255.206.0/24IndonesiaAS24521PT. DATA Utama Dinamika000.00%
123.255.207.0/24IndonesiaAS24521PT. DATA Utama Dinamika702.73%
123.255.208.0/24Australia—000.00%
123.255.209.0/24Australia—000.00%
123.255.210.0/24Australia—000.00%
123.255.211.0/24Australia—000.00%
123.255.212.0/24Australia—000.00%
123.255.213.0/24Australia—000.00%
123.255.214.0/24Australia—000.00%
123.255.215.0/24Australia—000.00%
123.255.216.0/24Australia—000.00%
123.255.217.0/24Australia—000.00%
123.255.218.0/24Australia—000.00%
123.255.219.0/24Australia—000.00%
123.255.220.0/24Australia—000.00%
123.255.221.0/24Australia—000.00%
123.255.222.0/24Australia—000.00%
123.255.223.0/24Australia—000.00%
123.255.224.0/24Philippines—000.00%
123.255.225.0/24Philippines—000.00%
123.255.226.0/24Philippines—000.00%
123.255.227.0/24Philippines—000.00%
123.255.228.0/24Philippines—000.00%
123.255.229.0/24Philippines—000.00%
123.255.230.0/24PhilippinesAS45560TOPNET. IP Transit AS000.00%
123.255.231.0/24PhilippinesAS45560TOPNET. IP Transit AS000.00%
123.255.232.0/24JapanAS24259kanuma cable television Corporation501.95%
123.255.233.0/24JapanAS24259kanuma cable television Corporation401.56%
123.255.234.0/24JapanAS24259kanuma cable television Corporation200.78%
123.255.235.0/24JapanAS24259kanuma cable television Corporation301.17%
123.255.236.0/24JapanAS24259kanuma cable television Corporation401.56%
123.255.237.0/24JapanAS24259kanuma cable television Corporation602.34%
123.255.238.0/24JapanAS24259kanuma cable television Corporation000.00%
123.255.239.0/24JapanAS24259kanuma cable television Corporation000.00%
123.255.240.0/24JapanAS10001Mics Network Corporation200.78%
123.255.241.0/24JapanAS10001Mics Network Corporation602.34%
123.255.242.0/24JapanAS10001Mics Network Corporation301.17%
123.255.243.0/24JapanAS10001Mics Network Corporation501.95%
123.255.244.0/24JapanAS10001Mics Network Corporation501.95%
123.255.245.0/24JapanAS10001Mics Network Corporation501.95%
123.255.246.0/24JapanAS10001Mics Network Corporation200.78%
123.255.247.0/24JapanAS10001Mics Network Corporation301.17%
123.255.248.0/24IndiaAS45536Readylink Internet Services Limited602.34%
123.255.249.0/24IndiaAS45536Readylink Internet Services Limited1405.47%
123.255.250.0/24IndiaAS45536Readylink Internet Services Limited1706.64%
123.255.251.0/24IndiaAS45536Readylink Internet Services Limited1003.91%
123.255.252.0/24India—000.00%
123.255.253.0/24India—000.00%
123.255.254.0/24India—000.00%
123.255.255.0/24India—000.00%
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01 · License

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