IP Tracker

AS1540

Headquarters, USAISC

USUnknown2026-10-23

Announced prefixes 1000+

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5.56.0/24134.235.57.0/24134.235.58.0/24134.235.60.0/23134.235.64.0/24134.235.65.0/24134.235.66.0/24134.235.67.0/24134.235.81.0/24134.235.82.0/24134.235.92.0/24134.235.98.0/24134.235.100.0/23134.235.102.0/23134.235.105.0/24136.205.0.0/16136.205.180.0/24136.217.5.0/24136.217.8.0/24136.217.15.0/24136.217.20.0/23136.217.23.0/24136.217.28.0/24136.217.33.0/24136.217.34.0/24136.217.36.0/24136.217.37.0/24136.217.38.0/24136.217.39.0/24136.217.41.0/24136.217.42.0/24136.217.43.0/24136.217.44.0/24136.217.45.0/24136.217.46.0/23136.217.49.0/24136.217.50.0/24136.217.54.0/23136.217.56.0/24136.217.59.0/24136.217.65.0/24136.217.68.0/24136.217.76.0/24136.217.79.0/24136.217.80.0/24136.217.81.0/24136.217.86.0/24136.217.87.0/24136.217.88.0/24136.217.90.0/24136.217.95.0/24136.217.96.0/24136.217.99.0/24136.217.100.0/23136.217.102.0/23136.217.104.0/23136.217.106.0/23136.217.116.0/24136.217.120.0/24136.217.128.0/24136.217.129.0/24136.217.130.0/24136.217.131.0/24136.217.132.0/24136.217.133.0/24136.217.134.0/24136.217.135.0/24136.217.136.0/24136.217.137.0/24136.217.138.0/24136.217.139.0/24136.217.140.0/24136.217.141.0/24136.217.142.0/24136.217.143.0/24136.217.144.0/24136.217.145.0/24136.217.146.0/24136.217.147.0/24136.217.148.0/24136.217.149.0/24136.217.150.0/24136.217.151.0/24136.217.152.0/24136.217.153.0/24136.217.154.0/24136.217.155.0/24136.217.156.0/24136.217.157.0/24136.217.158.0/24136.217.159.0/24136.217.160.0/24136.217.161.0/24136.217.162.0/24136.217.163.0/24136.217.164.0/24136.217.173.0/24136.217.174.0/24136.217.175.0/24136.217.176.0/24136.217.177.0/24136.217.179.0/24136.217.180.0/24136.217.188.0/24136.217.196.0/24136.217.197.0/24136.217.222.0/24136.217.224.0/24136.217.225.0/24136.217.226.0/24136.217.227.0/24136.217.228.0/24136.217.229.0/24136.217.230.0/24136.217.231.0/24136.217.232.0/24136.217.233.0/24136.217.234.0/24136.217.235.0/24136.217.236.0/24136.217.237.0/24136.217.238.0/24136.217.239.0/24136.217.240.0/24136.217.241.0/24136.217.242.0/24136.217.243.0/24136.217.244.0/24136.217.245.0/24136.217.246.0/24136.217.247.0/24136.217.248.0/24136.217.249.0/24136.217.250.0/24136.217.251.0/24136.217.252.0/24136.217.253.0/24136.217.255.0/24136.220.17.0/24136.220.18.0/24136.220.19.0/24136.220.20.0/24136.220.21.0/24136.220.22.0/24136.220.23.0/24136.220.24.0/24136.220.25.0/24136.220.26.0/24136.220.27.0/24136.220.28.0/24136.220.29.0/24136.220.30.0/23136.220.32.0/22136.220.36.0/24136.220.38.0/24136.220.58.0/24136.220.59.0/24136.220.60.0/24136.220.83.0/24136.220.84.0/24136.220.85.0/24136.220.86.0/24136.220.87.0/24136.220.88.0/24136.220.89.0/24136.220.90.0/24136.220.91.0/24136.220.92.0/24136.220.93.0/24136.220.94.0/24136.220.124.0/24136.220.125.0/24136.220.126.0/24136.220.128.0/23136.220.130.0/24136.220.142.0/24136.220.143.0/24136.220.170.0/23136.220.172.0/23136.220.230.0/23136.220.232.0/23136.220.234.0/24136.220.235.0/24136.220.240.0/23136.220.242.0/23136.220.244.0/24136.220.245.0/24136.220.252.0/22138.27.0.0/16138.50.0.0/23138.50.2.0/23138.50.4.0/23138.50.6.0/23138.50.8.0/23138.50.10.0/23138.50.14.0/24138.50.15.0/24138.50.17.0/24138.50.18.0/24138.50.19.0/24138.50.40.0/23138.50.42.0/23138.50.44.0/23138.50.46.0/23138.50.48.0/23138.50.50.0/23138.50.52.0/24138.50.53.0/24138.50.64.0/24138.50.65.0/24138.50.66.0/24138.50.67.0/24138.50.68.0/23138.50.70.0/23138.50.72.0/24138.50.73.0/24138.50.74.0/24138.50.75.0/24138.50.96.0/24138.50.97.0/24138.50.98.0/24138.50.104.0/23138.50.106.0/23138.50.108.0/23138.50.110.0/24138.50.111.0/24138.50.112.0/24139.139.0.0/20139.139.16.0/20139.139.32.0/19139.139.64.0/19139.139.96.0/20139.139.128.0/24139.139.130.0/24139.139.132.0/24139.139.138.0/23139.139.160.0/20139.139.176.0/20

Snapshot history

DateNameCountryClassPrefixes
2026-11-11Headquarters, USAISCUSUnknown2175
2026-11-10Headquarters, USAISCUSUnknown2179
2026-11-09Headquarters, USAISCUSUnknown2171
2026-11-08Headquarters, USAISCUSUnknown2173
2026-11-07Headquarters, USAISCUSUnknown2192
2026-11-06Headquarters, USAISCUSUnknown2187
2026-11-05Headquarters, USAISCUSUnknown2188
2026-11-04Headquarters, USAISCUSUnknown2236
2026-11-03Headquarters, USAISCUSUnknown2070
2026-11-02Headquarters, USAISCUSUnknown2043
2026-11-01Headquarters, USAISCUSUnknown2040
2026-10-31Headquarters, USAISCUSUnknown2063
2026-10-30Headquarters, USAISCUSUnknown2061
2026-10-29Headquarters, USAISCUSUnknown2070
2026-10-28Headquarters, USAISCUSUnknown2079
2026-10-27Headquarters, USAISCUSUnknown2081
2026-10-26Headquarters, USAISCUSUnknown2063
2026-10-25Headquarters, USAISCUSUnknown2068
2026-10-24Headquarters, USAISCUSUnknown2074
2026-10-23Headquarters, USAISCUSUnknown2072
2026-10-22Headquarters, USAISCUSUnknown2081
2026-10-21Headquarters, USAISCUSUnknown2015
2026-10-20Headquarters, USAISCUSUnknown1502
2026-10-19Headquarters, USAISCUSUnknown1511
2026-10-18Headquarters, USAISCUSUnknown1514
2026-10-17Headquarters, USAISCUSUnknown1515
2026-10-16Headquarters, USAISCUSUnknown1524
2026-10-15Headquarters, USAISCUSUnknown1509
2026-10-14Headquarters, USAISCUSUnknown1276
2026-10-13Headquarters, USAISCUSUnknown1272
2026-10-12Headquarters, USAISCUSUnknown1271
2026-10-11Headquarters, USAISCUSUnknown1271
2026-10-10Headquarters, USAISCUSUnknown1271
2026-10-09Headquarters, USAISCUSUnknown1266
2026-10-08Headquarters, USAISCUSUnknown1266
2026-10-07Headquarters, USAISCUSUnknown1270
2026-10-06Headquarters, USAISCUSUnknown1264
2026-10-05Headquarters, USAISCUSUnknown1257
2026-10-04Headquarters, USAISCUSUnknown1258
2026-10-03Headquarters, USAISCUSUnknown1265
2026-10-02Headquarters, USAISCUSUnknown1269
2026-10-01Headquarters, USAISCUSUnknown1264
2026-09-30Headquarters, USAISCUSUnknown1266
2026-09-29Headquarters, USAISCUSUnknown1273
2026-09-28Headquarters, USAISCUSUnknown1263
2026-09-27Headquarters, USAISCUSUnknown1264
2026-09-26Headquarters, USAISCUSUnknown1266
2026-09-25Headquarters, USAISCUSUnknown1264
2026-09-24Headquarters, USAISCUSUnknown1277
2026-09-23Headquarters, USAISCUSUnknown1282
2026-09-22Headquarters, USAISCUSUnknown1281
2026-09-21Headquarters, USAISCUSUnknown1266
2026-09-20Headquarters, USAISCUSUnknown1266
2026-09-19Headquarters, USAISCUSUnknown1267
2026-09-18Headquarters, USAISCUSUnknown1277
2026-09-17Headquarters, USAISCUSUnknown1278
2026-09-16Headquarters, USAISCUSUnknown1277
2026-09-15Headquarters, USAISCUSUnknown1269
2026-09-14Headquarters, USAISCUSUnknown1262
2026-09-13Headquarters, USAISCUSUnknown1261
2026-09-12Headquarters, USAISCUSUnknown1265
2026-09-11Headquarters, USAISCUSUnknown1266
2026-09-10Headquarters, USAISCUSUnknown1267
2026-09-09Headquarters, USAISCUSUnknown1273
2026-09-08Headquarters, USAISCUSUnknown1266
2026-09-07Headquarters, USAISCUSUnknown1266
2026-09-06Headquarters, USAISCUSUnknown1265
2026-09-05Headquarters, USAISCUSUnknown1266
2026-09-04Headquarters, USAISCUSUnknown1276
2026-09-03Headquarters, USAISCUSUnknown1237
2026-09-02Headquarters, USAISCUSUnknown1224
2026-09-01Headquarters, USAISCUSUnknown1225
2026-08-31Headquarters, USAISCUSUnknown1207
2026-08-30Headquarters, USAISCUSUnknown1206
2026-08-29Headquarters, USAISCUSUnknown1205
2026-08-28Headquarters, USAISCUSUnknown1249
2026-08-27Headquarters, USAISCUSUnknown1213
2026-08-26Headquarters, USAISCUSUnknown1134
2026-08-25Headquarters, USAISCUSUnknown1124
2026-08-24Headquarters, USAISCUSUnknown1121
2026-08-23Headquarters, USAISCUSUnknown1119
2026-08-22Headquarters, USAISCUSUnknown1122
2026-08-21Headquarters, USAISCUSUnknown1131
2026-08-20Headquarters, USAISCUSUnknown1104
2026-08-19Headquarters, USAISCUSUnknown1097
2026-08-18Headquarters, USAISCUSUnknown1074
2026-08-17Headquarters, USAISCUSUnknown1089
2026-08-16Headquarters, USAISCUSUnknown1089
2026-08-15Headquarters, USAISCUSUnknown1099
2026-08-14Headquarters, USAISCUSUnknown1102
2026-08-13Headquarters, USAISCUSUnknown1102
2026-08-12Headquarters, USAISCUSUnknown1100
2026-08-11Headquarters, USAISCUSUnknown1096
2026-08-10Headquarters, USAISCUSUnknown1086
2026-08-09Headquarters, USAISCUSUnknown1085
2026-08-08Headquarters, USAISCUSUnknown1098
2026-08-07Headquarters, USAISCUSUnknown1053
2026-08-06Headquarters, USAISCUSUnknown957
2026-08-05Headquarters, USAISCUSUnknown956
2026-08-04Headquarters, USAISCUSUnknown962
2026-08-03Headquarters, USAISCUSUnknown955
2026-08-02Headquarters, USAISCUSUnknown950
2026-08-01Headquarters, USAISCUSUnknown955
2026-07-31Headquarters, USAISCUSUnknown956
2026-07-30Headquarters, USAISCUSUnknown960
2026-07-29Headquarters, USAISCUSUnknown963
2026-07-28Headquarters, USAISCUSUnknown956
2026-07-27Headquarters, USAISCUSUnknown949
2026-07-26Headquarters, USAISCUSUnknown949
2026-07-25Headquarters, USAISCUSUnknown955
2026-07-24Headquarters, USAISCUSUnknown955
2026-07-23Headquarters, USAISCUSUnknown963
2026-07-22Headquarters, USAISCUSUnknown923
2026-07-21Headquarters, USAISCUSUnknown922
2026-07-20Headquarters, USAISCUSUnknown917
2026-07-19Headquarters, USAISCUSUnknown915
2026-07-18Headquarters, USAISCUSUnknown918
2026-07-17Headquarters, USAISCUSUnknown924
2026-07-16Headquarters, USAISCUSUnknown1124
2026-07-15Headquarters, USAISCUSUnknown895
2026-07-14Headquarters, USAISCUSUnknown893
2026-07-13Headquarters, USAISCUSUnknown888
2026-07-12Headquarters, USAISCUSUnknown892
2026-07-11Headquarters, USAISCUSUnknown896
2026-07-10Headquarters, USAISCUSUnknown894
2026-07-09Headquarters, USAISCUSUnknown897
2026-07-08Headquarters, USAISCUSUnknown888
2026-07-07Headquarters, USAISCUSUnknown880
2026-07-06Headquarters, USAISCUSUnknown879
2026-07-05Headquarters, USAISCUSUnknown880
2026-07-04Headquarters, USAISCUSUnknown881
2026-07-03Headquarters, USAISCUSUnknown881
2026-07-02Headquarters, USAISCUSUnknown880
2026-07-01Headquarters, USAISCUSUnknown825
2026-06-30Headquarters, USAISCUSUnknown826
2026-06-29Headquarters, USAISCUSUnknown810
2026-06-28Headquarters, USAISCUSUnknown813
2026-06-27Headquarters, USAISCUSUnknown821
2026-06-26Headquarters, USAISCUSUnknown825
2026-06-25Headquarters, USAISCUSUnknown816
2026-06-24Headquarters, USAISCUSUnknown815
2026-06-23Headquarters, USAISCUSUnknown806
2026-06-22Headquarters, USAISCUSUnknown806
2026-06-21Headquarters, USAISCUSUnknown812
2026-06-20Headquarters, USAISCUSUnknown806
2026-06-19Headquarters, USAISCUSUnknown862
2026-06-18Headquarters, USAISCUSUnknown773
2026-06-17Headquarters, USAISCUSUnknown770
2026-06-16Headquarters, USAISCUSUnknown751
2026-06-15Headquarters, USAISCUSUnknown747
2026-06-14Headquarters, USAISCUSUnknown748
2026-06-13Headquarters, USAISCUSUnknown748

IP-block changes

Open full filtered history →
ObservedBlockActionPrevious originsNew origins
2026-11-11143.73.8.0/23ReleasedAS1540—
2026-11-11143.73.37.0/24Acquired—AS1540
2026-11-11143.74.28.0/23Acquired—AS1540
2026-11-11143.74.35.0/24ReleasedAS1540—
2026-11-11143.74.37.0/24ReleasedAS1540—
2026-11-11143.74.38.0/24ReleasedAS1540—
2026-11-11143.194.144.0/20ReleasedAS1540—
2026-11-11150.196.47.0/24Acquired—AS1540
2026-11-11150.196.117.0/24ReleasedAS1540—
2026-11-11158.11.40.0/24ReleasedAS1540—
2026-11-11158.11.50.0/23ReleasedAS1540—
2026-11-11158.11.84.0/24ReleasedAS1540—
2026-11-11158.11.224.0/23ReleasedAS1540—
2026-11-11158.11.228.0/23Acquired—AS1540
2026-11-11158.11.230.0/24Acquired—AS1540
2026-11-11160.136.103.0/24Acquired—AS1540
2026-11-11160.136.104.0/24ReleasedAS1540—
2026-11-112608:166:1bd0::/48Acquired—AS1540
2026-11-106.131.164.0/24Acquired—AS1540
2026-11-106.131.165.0/24Acquired—AS1540
2026-11-106.131.166.0/23Acquired—AS1540
2026-11-10143.73.8.0/23Acquired—AS1540
2026-11-10143.73.37.0/24ReleasedAS1540—
2026-11-10143.74.35.0/24Acquired—AS1540
2026-11-10143.74.37.0/24Acquired—AS1540
2026-11-10143.74.38.0/24Acquired—AS1540
2026-11-10143.74.167.0/24ReleasedAS1540—
2026-11-10143.74.181.0/24ReleasedAS1540—
2026-11-10143.86.182.0/24ReleasedAS1540—
2026-11-10143.194.144.0/20Acquired—AS1540
2026-11-10143.249.72.0/24ReleasedAS1540—
2026-11-10143.249.76.0/22ReleasedAS1540—
2026-11-10143.249.83.0/24ReleasedAS1540—
2026-11-10143.249.84.0/23ReleasedAS1540—
2026-11-10150.196.117.0/24Acquired—AS1540
2026-11-10150.196.155.0/24Acquired—AS1540
2026-11-10158.11.50.0/23Acquired—AS1540
2026-11-10158.11.84.0/24Acquired—AS1540
2026-11-10158.16.80.0/23Acquired—AS1540
2026-11-10158.16.82.0/23Acquired—AS1540
2026-11-10158.16.84.0/23Acquired—AS1540
2026-11-10158.16.86.0/23Acquired—AS1540
2026-11-09140.196.0.0/16Acquired—AS1540
2026-11-09143.73.14.0/23ReleasedAS1540—
2026-11-09143.73.14.0/24ReleasedAS1540—
2026-11-09143.74.144.0/23ReleasedAS1540—
2026-11-09143.74.165.0/24ReleasedAS1540—
2026-11-09143.74.167.0/24Acquired—AS1540
2026-11-09143.74.179.0/24ReleasedAS1540—
2026-11-09143.74.181.0/24Acquired—AS1540
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