131.0.0.0/8

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64 blocks covering 3,666,944 addresses, 54 gaps covering 96,996,352 addresses. Sorted by start address; grey rows are gaps.

StartPrefix or rangeSizeStatusHeldCountryRegistryRDAPNameTypeOrganizationProbesFlags
131.2.0.0131.2.0.0/1665,536allocatedyesUSarinownAF-AFMC-AFSN-131-2ALLOCATIONAir Force Systems Networking2,916
131.3.0.0131.3.0.0/1665,536allocatedyesUSarinownFAIRFORD-NETALLOCATIONAir Force Systems Networking2,916
gap: 131.4.0.0 - 131.4.255.255 (65,536 addresses)
131.5.0.0131.5.0.0/1665,536allocatedyesUSarinownGRIFFISS-NETALLOCATIONAir Force Systems Networking2,916
gap: 131.6.0.0 - 131.6.255.255 (65,536 addresses)
131.7.0.0131.7.0.0/1665,536allocatedyesUSarinownOFFUTT1-NETALLOCATIONAir Force Systems Networking2,916
gap: 131.8.0.0 - 131.10.255.255 (196,608 addresses)
131.11.0.0131.11.0.0/1665,536allocatedyesUSarinownBOLLING-NETALLOCATIONAir Force Systems Networking2,916
gap: 131.12.0.0 - 131.12.255.255 (65,536 addresses)
131.13.0.0131.13.0.0/1665,536allocatedyesUSarinownKELLY-NETALLOCATIONAir Force Systems Networking2,916
gap: 131.14.0.0 - 131.16.255.255 (196,608 addresses)
131.17.0.0131.17.0.0/1665,536allocatedyesUSarinownSPDSUN01-NETALLOCATIONAir Force Systems Networking2,916
gap: 131.18.0.0 - 131.18.255.255 (65,536 addresses)
131.19.0.0131.19.0.0/1665,536allocatedyesUSarinownBITBURG-NETALLOCATIONAir Force Systems Networking2,916
gap: 131.20.0.0 - 131.22.255.255 (196,608 addresses)
131.23.0.0131.23.0.0/1665,536allocatedyesUSarinownKIRTLAND-NETALLOCATIONAir Force Systems Networking2,916
gap: 131.24.0.0 - 131.28.255.255 (327,680 addresses)
131.29.0.0131.29.0.0/1665,536allocatedyesUSarinownLAAFB-NETALLOCATIONAir Force Systems Networking2,916
gap: 131.30.0.0 - 131.30.255.255 (65,536 addresses)
131.31.0.0131.31.0.0/1665,536allocatedyesUSarinownDNIC-SNET-131-031ALLOCATIONDoD Network Information Center2,916
gap: 131.32.0.0 - 131.36.255.255 (327,680 addresses)
131.37.0.0131.37.0.0/1665,536allocatedyesUSarinownTOPCOVERALLOCATIONAir Force Systems Networking2,916
gap: 131.38.0.0 - 131.40.255.255 (196,608 addresses)
131.41.0.0131.41.0.0/1665,536allocatedyesUSarinownDNIC-SNET-131-041ALLOCATIONDoD Network Information Center2,916
gap: 131.42.0.0 - 131.42.255.255 (65,536 addresses)
131.43.0.0131.43.0.0/1665,536allocatedyesUSarinownAFCONC-NET3ALLOCATIONAir Force Systems Networking2,916
gap: 131.44.0.0 - 131.46.255.255 (196,608 addresses)
131.47.0.0131.47.0.0/1665,536allocatedyesUSarinownANDERSEN-NETALLOCATIONAir Force Systems Networking2,916
gap: 131.48.0.0 - 131.52.255.255 (327,680 addresses)
131.53.0.0131.53.0.0/1665,536allocatedyesUSarinownMALMSTROM-NETALLOCATIONAir Force Systems Networking2,916
gap: 131.54.0.0 - 131.58.255.255 (327,680 addresses)
131.59.0.0131.59.0.0/1665,536allocatedyesUSarinownNET-DYESSALLOCATIONAir Force Systems Networking2,916
gap: 131.60.0.0 - 131.60.255.255 (65,536 addresses)
131.61.0.0131.61.0.0/1665,536allocatedyesUSarinownMCCONNELL-NETALLOCATIONAir Force Systems Networking2,916
gap: 131.62.0.0 - 131.66.255.255 (327,680 addresses)
131.67.0.0131.67.0.0/1665,536allocatedyesUSarinownDCMA-CENTALLOCATIONDoD Network Information Center2,916
gap: 131.68.0.0 - 131.70.255.255 (196,608 addresses)
131.71.0.0131.71.0.0/1665,536allocatedyesUSarinownCCSNET-DISA-PAAS-AMAZONASSIGNMENTORG-DISA-TPO2,916
gap: 131.72.0.0 - 131.72.255.255 (65,536 addresses)
131.73.0.0131.73.0.0/1665,536allocatedyesUSarinownDNIC-RNET-131-073ALLOCATIONDoD Network Information Center2,916
gap: 131.74.0.0 - 131.78.255.255 (327,680 addresses)
131.79.0.0131.79.0.0/1665,536allocatedyesUSarinownDDTCALLOCATIONDoD Network Information Center2,916
gap: 131.80.0.0 - 131.82.255.255 (196,608 addresses)
131.83.0.0131.83.0.0/1665,536allocatedyesUSarinownDNIC-RNET-131-083ALLOCATIONDoD Network Information Center2,916
gap: 131.84.0.0 - 131.88.255.255 (327,680 addresses)
131.89.0.0131.89.0.0/1665,536allocatedyesUSarinownPGE-BNETDIRECT ALLOCATIONPG&E2,916
gap: 131.90.0.0 - 131.96.255.255 (458,752 addresses)
131.97.0.0131.97.0.0/1665,536assignedyesSEripenccownVOLVOLEGACYVolvo Information Technology AB2,916S
gap: 131.98.0.0 - 131.100.255.255 (196,608 addresses)
131.101.0.0131.101.0.0/1665,536allocatedyesUSarinownTERADYNEDIRECT ALLOCATIONTeradyne, Inc.2,916
gap: 131.102.0.0 - 131.102.255.255 (65,536 addresses)
131.103.0.0131.103.0.0/1665,536allocatedyesUSarinownNTTA-131-103DIRECT ALLOCATIONNTT America, Inc.2,916
gap: 131.104.0.0 - 131.106.255.255 (196,608 addresses)
131.107.0.0131.107.0.0/1665,536allocatedyesUSarinownMICROSOFTDIRECT ALLOCATIONMicrosoft Corporation2,916
gap: 131.108.0.0 - 131.108.255.255 (65,536 addresses)
131.109.0.0131.109.0.0/1665,536allocatedyesUSarinownRINETDIRECT ALLOCATIONRhode Island Network for Educ. Technology2,916
gap: 131.110.0.0 - 131.112.255.255 (196,608 addresses)
131.113.0.0131.113.0.0/1665,536allocatedyesJPapnicownKEIO-NETASSIGNED PORTABLEKeio University Network Group2,916S
gap: 131.114.0.0 - 131.126.255.255 (851,968 addresses)
131.127.0.0131.127.0.0/1665,536allocatedyesUSarinownAMAZO-4DIRECT ALLOCATIONAmazon.com, Inc.2,916
gap: 131.128.0.0 - 131.130.255.255 (196,608 addresses)
131.131.0.0131.131.0.0/1665,536allocatedyesUSarinownGDIT-NET4DIRECT ALLOCATIONGeneral Dynamics Information Technology, Inc.2,916
gap: 131.132.0.0 - 131.135.255.255 (262,144 addresses)
131.136.0.0131.136.0.0/14262,144allocatedyesCAarinownDRE-TESTNETASSIGNMENTDepartment of National Defence5,832
gap: 131.140.0.0 - 131.148.255.255 (589,824 addresses)
131.149.0.0131.149.0.0/198,192allocatedyesUSarinownCC04DIRECT ALLOCATIONCharter Communications LLC594
131.149.32.0131.149.32.0/204,096allocatedyesUSarinparentCC04DIRECT ALLOCATIONCharter Communications LLC216P
gap: 131.149.48.0 - 131.149.51.255 (1,024 addresses)
131.149.52.0131.149.52.0/221,024allocatedyesUSarinownSYNCWAVE-131DIRECT ALLOCATIONSyncWave, LLC54
131.149.56.0131.149.56.0/212,048allocatedyesUSarinownCC04DIRECT ALLOCATIONCharter Communications LLC108
131.149.64.0131.149.64.0/1816,384allocatedyesUSarinparentCC04DIRECT ALLOCATIONCharter Communications LLC702P
131.149.128.0131.149.128.0/1816,384allocatedyesUSarinparentCC04DIRECT ALLOCATIONCharter Communications LLC648P
131.149.192.0131.149.192.0/198,192allocatedyesUSarinparentCC04DIRECT ALLOCATIONCharter Communications LLC270P
131.149.224.0131.149.224.0/212,048allocatedyesUSarinownWRC-SMT-DIAASSIGNMENTSho Me Technologies, LLC108
131.149.232.0131.149.232.0/212,048allocatedyesUSarinownNL-869DIRECT ALLOCATIONNotion Labs, Inc.108
131.149.240.0131.149.240.0/221,024allocatedyesUSarinownICONE-2DIRECT ALLOCATIONCivicPlus, LLC54
gap: 131.149.244.0 - 131.149.247.255 (1,024 addresses)
131.149.248.0131.149.248.0/221,024allocatedyesAUapnicownLEAP-AUALLOCATED PORTABLELeap Telecommunications Pty Ltd administrator54S
gap: 131.149.252.0 - 131.150.255.255 (66,560 addresses)
131.151.0.0131.151.0.0/1665,536allocatedyesUSarinownMST-CAMPUSDIRECT ALLOCATIONMissouri University of Science and Technology2,916
gap: 131.152.0.0 - 131.156.255.255 (327,680 addresses)
131.157.0.0131.157.0.0/1665,536allocatedyesUSarinownLIBRAINCDIRECT ALLOCATIONLibrascope Corporation2,916
gap: 131.158.0.0 - 131.162.255.255 (327,680 addresses)
131.163.0.0131.163.0.0/1665,536allocatedyesGBripenccowncloudASSIGNED PADivya Quamara2,916SC
gap: 131.164.0.0 - 131.166.255.255 (196,608 addresses)
131.167.0.0131.167.0.0/1665,536allocatedyesUSarinownBMINETDIRECT ALLOCATIONBATTELLE MEMORIAL INSTITUTE2,916
gap: 131.168.0.0 - 131.172.255.255 (327,680 addresses)
131.173.0.0131.173.0.0/1665,536assignedyesDEripenccownUOSLEGACYAndreas Knaden2,916S
gap: 131.174.0.0 - 131.178.255.255 (327,680 addresses)
131.179.0.0131.179.0.0/1665,536allocatedyesUSarinownUCLA-CSDIRECT ALLOCATIONUniversity of California, Los Angeles2,916
gap: 131.180.0.0 - 131.180.255.255 (65,536 addresses)
131.181.0.0131.181.0.0/1665,536allocatedyesAUapnicownQUT-AUALLOCATED PORTABLEIT Networks Daily Event Coordinator2,916S
gap: 131.182.0.0 - 131.190.255.255 (589,824 addresses)
131.191.0.0131.191.0.0/1665,536allocatedyesUSarinownCLICK-NET-1ALLOCATIONClick! Network2,916
gap: 131.192.0.0 - 131.192.255.255 (65,536 addresses)
131.193.0.0131.193.0.0/1665,536allocatedyesUSarinownUIC-ISN-NETDIRECT ALLOCATIONUniversity of Illinois Chicago2,916
gap: 131.194.0.0 - 131.196.255.255 (196,608 addresses)
131.197.0.0131.197.0.0/1665,536allocatedyesUSarinownMSI-SECNETDIRECT ALLOCATIONMotorola - Network Computing Services2,916
gap: 131.198.0.0 - 131.198.255.255 (65,536 addresses)
131.199.0.0131.199.0.0/1665,536allocatedyesUSarinownRTX-C-NET-BLK-2DIRECT ALLOCATIONRTX Corporation2,916
gap: 131.200.0.0 - 131.210.255.255 (720,896 addresses)
131.211.0.0131.211.0.0/1665,536assignedyesNLripenccownSOLIS-NETLEGACYUniversiteit Utrecht2,916S
gap: 131.212.0.0 - 131.222.255.255 (720,896 addresses)
131.223.0.0131.223.0.0/1665,536allocatedyesUSarinownCC04DIRECT ALLOCATIONCharter Communications LLC2,916
gap: 131.224.0.0 - 131.226.255.255 (196,608 addresses)
131.227.0.0131.227.0.0/1665,536assignedyesGBripenccownSURREY-NETLEGACYAdam Sumun2,916S
gap: 131.228.0.0 - 131.228.255.255 (65,536 addresses)
131.229.0.0131.229.0.0/1732,768allocatedyesUSarinownSMITHDIRECT ALLOCATIONSmith College1,674
131.229.128.0131.229.128.0/1732,768allocatedyesUSarinownWGCS-OCI-SAN-JOSEALLOCATIONSKYHIGH SECURITY LLC1,242
gap: 131.230.0.0 - 131.232.255.255 (196,608 addresses)
131.233.0.0131.233.0.0/1665,536allocatedyesUSarinownCIM-NETDIRECT ALLOCATIONTELEFLEX INCORPORATED2,916
gap: 131.234.0.0 - 131.238.255.255 (327,680 addresses)
131.239.0.0131.239.0.0/1665,536allocatedyesUSarinownNET-CCF-0-131-239-0-0-24ASSIGNMENTKlein Independent School District2,916
gap: 131.240.0.0 - 131.240.255.255 (65,536 addresses)
131.241.0.0131.241.0.0/1665,536allocatedyesUSarinownFUSE-NET-BLK-15DIRECT ALLOCATIONAltafiber2,916
gap: 131.242.0.0 - 131.250.255.255 (589,824 addresses)
131.251.0.0131.251.0.0/1665,536assignedyesGBripenccownCARDIFF-UNIVERSITYLEGACYChris King2,916S