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City

Boulder

Colorado United States America/Denver
IPv4 addresses
457,903
Ranges
50
Time zone
America/Denver

Other cities in Colorado

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Top ranges in Boulder

CIDRIPsOrganizationASN
161.98.0.0/17 32.8K University Corporation for Atmospheric Research AS14041
161.98.0.0/18 16.4K University Corporation for Atmospheric Research AS14041
132.163.192.0/18 16.4K National Oceanic and Atmospheric Administration AS2648
166.2.128.0/18 16.4K USDA AS4155
140.172.128.0/18 16.4K National Oceanic and Atmospheric Administration AS3477
128.117.64.0/18 16.4K University Corporation for Atmospheric Research AS194
128.117.128.0/18 16.4K University Corporation for Atmospheric Research AS194
128.117.192.0/19 8.2K University Corporation for Atmospheric Research AS194
128.138.0.0/19 8.2K University of Colorado at Boulder AS104
166.2.128.0/19 8.2K USDA AS4155
140.172.0.0/19 8.2K National Oceanic and Atmospheric Administration AS3477
140.172.224.0/19 8.2K National Oceanic and Atmospheric Administration AS3477
128.138.64.0/19 8.2K University of Colorado at Boulder AS104
128.138.32.0/19 8.2K University of Colorado at Boulder AS104
128.117.0.0/19 8.2K University Corporation for Atmospheric Research AS194
128.117.96.0/19 8.2K University Corporation for Atmospheric Research AS194
161.98.32.0/19 8.2K University Corporation for Atmospheric Research AS14041
132.163.160.0/19 8.2K National Oceanic and Atmospheric Administration AS2648
132.163.128.0/20 4.1K National Oceanic and Atmospheric Administration AS2648
207.106.16.0/20 4.1K — —
128.138.128.0/20 4.1K University of Colorado at Boulder AS104
198.11.16.0/20 4.1K University of Colorado at Boulder AS104
205.240.0.0/20 4.1K Computer Systems Design Company AS3364
216.160.128.0/20 4.1K CenturyLink Communications, LLC AS209
128.117.64.0/20 4.1K University Corporation for Atmospheric Research AS194
128.117.80.0/20 4.1K University Corporation for Atmospheric Research AS194
192.174.32.0/20 4.1K National Renewable Energy Laboratory AS16411
128.138.176.0/20 4.1K University of Colorado at Boulder AS104
174.234.48.0/20 4.1K Verizon Business AS6167
174.29.80.0/20 4.1K CenturyLink Communications, LLC AS209
132.163.144.0/20 4.1K National Oceanic and Atmospheric Administration AS2648
140.172.48.0/20 4.1K National Oceanic and Atmospheric Administration AS3477
166.2.176.0/20 4.1K USDA AS4155
166.2.160.0/20 4.1K USDA AS4155
140.172.32.0/20 4.1K National Oceanic and Atmospheric Administration AS3477
137.75.192.0/20 4.1K National Oceanic and Atmospheric Administration AS2648
128.138.160.0/20 4.1K University of Colorado at Boulder AS104
128.117.240.0/20 4.1K University Corporation for Atmospheric Research AS194
128.138.48.0/20 4.1K University of Colorado at Boulder AS104
67.41.192.0/20 4.1K CenturyLink Communications, LLC AS209
161.98.0.0/20 4.1K University Corporation for Atmospheric Research AS14041
67.41.208.0/20 4.1K CenturyLink Communications, LLC AS209
128.138.32.0/20 4.1K University of Colorado at Boulder AS104
161.98.16.0/20 4.1K University Corporation for Atmospheric Research AS14041
63.227.32.0/20 4.1K CenturyLink Communications, LLC AS209
71.229.224.0/20 4.1K Comcast Cable Communications, LLC AS7922
76.120.32.0/20 4.1K Comcast Cable Communications, LLC AS7922
76.155.96.0/20 4.1K Comcast Cable Communications, LLC AS7922
98.53.208.0/20 4.1K Comcast Cable Communications, LLC AS7922
72.28.112.0/20 4.1K Telx AS36086
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