| 143.0.0.0/8 | WHOIS (ARIN) | Various Registries (Maintained by ARIN) | US |
| 143.20.0.0/16 | WHOIS (RIPE_NCC) | NET AND GRID RESEARCH, LLC | US |
| 143.20.0.0/16 | RIPE_NCC assigned | β | US |
| 143.20.128.0/17 | WHOIS (RIPE_NCC) | Internet Utilities Europe and Asia Limited | US |
| 143.20.144.0/20 | WHOIS (RIPE_NCC) | FTR | EU |
| 143.20.160.0/20 | WHOIS (RIPE_NCC) | FTR | EU |
| 143.20.128.0/21 | WHOIS (RIPE_NCC) | Internet Utilities Europe and Asia Limited | EU |
| 143.20.184.0/21 | WHOIS (RIPE_NCC) | Internet Utilities Europe and Asia Limited | EU |
| 143.20.128.0/22 | BGP route | AS397423 Tier.Net Technologies LLC | β |
| 143.20.136.0/22 | WHOIS (RIPE_NCC) | Internet Utilities Europe and Asia Limited | EU |
| 143.20.180.0/22 | BGP route | AS397423 Tier.Net Technologies LLC | β |
| 143.20.180.0/22 | WHOIS (RIPE_NCC) | Internet Utilities Europe and Asia Limited | EU |
| 143.20.188.0/22 | BGP route | AS397423 Tier.Net Technologies LLC | β |
| 143.20.196.0/22 | BGP route | AS397423 Tier.Net Technologies LLC | β |
| 143.20.196.0/22 | WHOIS (RIPE_NCC) | Private Customer | US |
| 143.20.200.0/22 | BGP route | AS199959 GWY IT PTY LTD | β |
| 143.20.200.0/22 | WHOIS (RIPE_NCC) | Internet Utilities Europe and Asia Limited | EU |
| 143.20.208.0/22 | BGP route | AS199959 GWY IT PTY LTD | β |
| 143.20.208.0/22 | WHOIS (RIPE_NCC) | Private Customer | US |
| 143.20.216.0/22 | BGP route | AS199959 GWY IT PTY LTD | β |
| 143.20.224.0/22 | BGP route | AS199959 GWY IT PTY LTD | β |
| 143.20.224.0/22 | WHOIS (RIPE_NCC) | MIFFLIN COUNTY WIRELESS LLC | EU |
| 143.20.232.0/22 | BGP route | AS199959 GWY IT PTY LTD | β |
| 143.20.232.0/22 | WHOIS (RIPE_NCC) | MIFFLIN COUNTY WIRELESS LLC | EU |
| 143.20.240.0/22 | WHOIS (RIPE_NCC) | MIFFLIN COUNTY WIRELESS LLC | EU |
| 143.20.248.0/22 | WHOIS (RIPE_NCC) | NET-143-20-248-0-22 | EU |
| 143.20.140.0/23 | WHOIS (RIPE_NCC) | Internet Utilities Europe and Asia Limited | EU |
| 143.20.176.0/23 | WHOIS (RIPE_NCC) | Internet Utilities Europe and Asia Limited | EU |
| 143.20.186.0/23 | BGP route | AS141676 St. Joseph Cable TV System | β |
| 143.20.186.0/23 | WHOIS (RIPE_NCC) | St. Joseph Cable TV System | PH |
| 143.20.204.0/23 | BGP route | AS215355 ALICE NETWORKS LTD | β |
| 143.20.204.0/23 | WHOIS (RIPE_NCC) | Alice Networks Ltd | GB |
| 143.20.214.0/23 | BGP route | AS216059 FREE VPN APP LIMITED | β |
| 143.20.214.0/23 | WHOIS (RIPE_NCC) | Internet Utilities Europe and Asia Limited | EU |
| 143.20.220.0/23 | WHOIS (RIPE_NCC) | NET-143-20-220-0-23 | EU |
| 143.20.224.0/23 | WHOIS (RIPE_NCC) | Private Customer | US |
| 143.20.228.0/23 | BGP route | AS152918 Liberally Network LLC | β |
| 143.20.128.0/24 | BGP route | AS402265 Mutanet LLC | β |
| 143.20.129.0/24 | BGP route | AS202673 Ohz Digital S.L. | β |
| 143.20.129.0/24 | WHOIS (RIPE_NCC) | OHZ | ES |
| 143.20.130.0/24 | BGP route | AS149448 Singapore Data Cloud PTE. LTD | β |
| 143.20.130.0/24 | WHOIS (RIPE_NCC) | Private Customer | KH |
| 143.20.131.0/24 | BGP route | AS9304 HGC Global Communications Limited | β |
| 143.20.131.0/24 | WHOIS (RIPE_NCC) | Private Customer | US |
| 143.20.132.0/24 | BGP route | AS212416 Proximity EOOD | β |
| 143.20.132.0/24 | WHOIS (RIPE_NCC) | Private Customer | EU |
| 143.20.133.0/24 | BGP route | AS5065 Bunny Communications | β |
| 143.20.133.0/24 | WHOIS (RIPE_NCC) | Bunny Communications LLC | US |
| 143.20.134.0/24 | BGP route | AS215703 FREAKHOSTING LTD | β |
| 143.20.134.0/24 | WHOIS (RIPE_NCC) | FREAKHOSTING LTD | US |
| 143.20.135.0/24 | BGP route | AS400556 Elcro Digital Services, LLC | β |
| 143.20.135.0/24 | WHOIS (RIPE_NCC) | Elcro Digital Services LLC | CA |
| 143.20.136.0/24 | BGP route | AS13537 Mega Colocation, Inc. | β |
| 143.20.136.0/24 | WHOIS (RIPE_NCC) | Private Customer | US |
| 143.20.137.0/24 | BGP route | AS401476 Spruce Creek Networks LLC | β |
| 143.20.137.0/24 | WHOIS (RIPE_NCC) | Private Customer | US |
| 143.20.138.0/24 | BGP route | AS20648 TMN SA | β |
| 143.20.138.0/24 | WHOIS (RIPE_NCC) | TMN SA | CH |
| 143.20.139.0/24 | BGP route | AS9304 HGC Global Communications Limited | β |
| 143.20.139.0/24 | WHOIS (RIPE_NCC) | Private Customer | US |
| 143.20.140.0/24 | BGP route | AS60602 Inovare-Prim SRL | β |
| 143.20.140.0/24 | WHOIS (RIPE_NCC) | Inovare-Prim SRL | MD |
| 143.20.141.0/24 | BGP route | AS60117 Host Sailor Ltd | β |
| 143.20.142.0/24 | BGP route | AS152734 Maxnito Company Limited | β |
| 143.20.142.0/24 | WHOIS (RIPE_NCC) | Private Customer | EU |
| 143.20.143.0/24 | BGP route | AS399646 Snaju Development | β |
| 143.20.143.0/24 | WHOIS (RIPE_NCC) | uqidc | US |
| 143.20.144.0/24 | BGP route | AS9304 HGC Global Communications Limited | β |
| 143.20.144.0/24 | WHOIS (RIPE_NCC) | StarNet InfoTech Consulting Limited | EU |
| 143.20.145.0/24 | BGP route | AS9304 HGC Global Communications Limited | β |
| 143.20.145.0/24 | WHOIS (RIPE_NCC) | StarNet InfoTech Consulting Limited | EU |
| 143.20.146.0/24 | BGP route | AS9304 HGC Global Communications Limited | β |
| 143.20.146.0/24 | WHOIS (RIPE_NCC) | StarNet InfoTech Consulting Limited | EU |
| 143.20.147.0/24 | BGP route | AS9304 HGC Global Communications Limited | β |
| 143.20.147.0/24 | WHOIS (RIPE_NCC) | StarNet InfoTech Consulting Limited | EU |
| 143.20.148.0/24 | BGP route | AS219105 AppFabric LLC | β |
| 143.20.148.0/24 | WHOIS (RIPE_NCC) | Private Customer | EU |
| 143.20.149.0/24 | BGP route | AS26042 FiberState, LLC | β |
| 143.20.149.0/24 | WHOIS (RIPE_NCC) | uqidc | US |
| 143.20.150.0/24 | BGP route | AS204770 UAB "Cherry Servers" | β |
| 143.20.150.0/24 | WHOIS (RIPE_NCC) | Private Customer | US |
| 143.20.151.0/24 | BGP route | AS273091 GRUPO INAN SPA | β |
| 143.20.151.0/24 | WHOIS (RIPE_NCC) | Private Customer | EU |
| 143.20.152.0/24 | BGP route | AS402265 Mutanet LLC | β |
| 143.20.152.0/24 | WHOIS (RIPE_NCC) | Internet Utilities Europe and Asia Limited | EU |
| 143.20.153.0/24 | BGP route | AS7029 Windstream Communications LLC | β |
| 143.20.153.0/24 | WHOIS (RIPE_NCC) | Private Customer | US |
| 143.20.154.0/24 | BGP route | AS214677 Matteo Martelloni trading as DELUXHOST | β |
| 143.20.154.0/24 | WHOIS (RIPE_NCC) | Matteo Martelloni trading as DELUXHOST | NL |
| 143.20.155.0/24 | BGP route | AS216129 SEBEK sp. z o.o | β |
| 143.20.155.0/24 | WHOIS (RIPE_NCC) | Private Customer | EU |
| 143.20.156.0/24 | BGP route | AS205548 ZOUTER LIMITED | β |
| 143.20.156.0/24 | WHOIS (RIPE_NCC) | ZOUTER LIMITED | GB |
| 143.20.157.0/24 | BGP route | AS9304 HGC Global Communications Limited | β |
| 143.20.158.0/24 | BGP route | AS5065 Bunny Communications | β |
| 143.20.159.0/24 | BGP route | AS5065 Bunny Communications | β |
| 143.20.160.0/24 | BGP route | AS212238 Datacamp Limited | β |
| 143.20.161.0/24 | BGP route | AS26042 FiberState, LLC | β |
| 143.20.162.0/24 | BGP route | AS219427 VERTEXCORE. PTE. LTD. | β |
| 143.20.163.0/24 | BGP route | AS5065 Bunny Communications | β |
| 143.20.164.0/24 | BGP route | AS204957 ROUTE 95 LLC | β |