| 72.0.0.0/8 | WHOIS (ARIN) | American Registry for Internet Numbers | US |
| 72.51.64.0/18 | WHOIS (ARIN) | Cable & Wireless (Barbados) Limited | BB |
| 72.51.64.0/18 | ARIN assigned | — | BB |
| 72.51.104.0/22 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.70.0/23 | BGP route | AS46650 Columbus Communications Grenada Ltd. | — |
| 72.51.70.0/23 | WHOIS (ARIN) | Cable & Wireless (Grenada) Limited | GD |
| 72.51.76.0/23 | BGP route | AS46408 Columbus Communication St. Vincent and the Grenadines Ltd. | — |
| 72.51.78.0/23 | BGP route | AS46408 Columbus Communication St. Vincent and the Grenadines Ltd. | — |
| 72.51.82.0/23 | BGP route | AS46650 Columbus Communications Grenada Ltd. | — |
| 72.51.84.0/23 | BGP route | AS46650 Columbus Communications Grenada Ltd. | — |
| 72.51.88.0/23 | BGP route | AS46408 Columbus Communication St. Vincent and the Grenadines Ltd. | — |
| 72.51.108.0/23 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.110.0/23 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.112.0/23 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.114.0/23 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.122.0/23 | BGP route | AS46408 Columbus Communication St. Vincent and the Grenadines Ltd. | — |
| 72.51.64.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.65.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.66.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.67.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.68.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.69.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.72.0/24 | BGP route | AS46650 Columbus Communications Grenada Ltd. | — |
| 72.51.72.0/24 | WHOIS (ARIN) | Cable & Wireless (Grenada) Limited | GD |
| 72.51.75.0/24 | BGP route | AS8014 Bahamas Telecommunications Corporation | — |
| 72.51.75.0/24 | WHOIS (ARIN) | The Bahamas Telecommunications Company, Ltd. | BS |
| 72.51.76.0/24 | WHOIS (ARIN) | Cable & Wireless (St.Vincent) Limited | VC |
| 72.51.77.0/24 | WHOIS (ARIN) | Cable & Wireless (St.Vincent) Limited | VC |
| 72.51.78.0/24 | WHOIS (ARIN) | Cable & Wireless (St.Vincent) Limited | VC |
| 72.51.79.0/24 | WHOIS (ARIN) | Cable & Wireless (St.Vincent) Limited | VC |
| 72.51.80.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.81.0/24 | BGP route | AS46650 Columbus Communications Grenada Ltd. | — |
| 72.51.81.0/24 | WHOIS (ARIN) | Cable & Wireless (Grenada) Limited | GD |
| 72.51.82.0/24 | WHOIS (ARIN) | Cable & Wireless (Grenada) Limited | GD |
| 72.51.83.0/24 | WHOIS (ARIN) | Cable & Wireless (Grenada) Limited | GD |
| 72.51.84.0/24 | WHOIS (ARIN) | Cable & Wireless (Grenada) Limited | GD |
| 72.51.85.0/24 | WHOIS (ARIN) | Cable & Wireless (Grenada) Limited | GD |
| 72.51.86.0/24 | BGP route | AS46650 Columbus Communications Grenada Ltd. | — |
| 72.51.86.0/24 | WHOIS (ARIN) | Cable & Wireless (Grenada) Limited | GD |
| 72.51.87.0/24 | BGP route | AS46408 Columbus Communication St. Vincent and the Grenadines Ltd. | — |
| 72.51.87.0/24 | WHOIS (ARIN) | Cable & Wireless (St.Vincent) Limited | VC |
| 72.51.88.0/24 | WHOIS (ARIN) | Cable & Wireless (St.Vincent) Limited | VC |
| 72.51.89.0/24 | WHOIS (ARIN) | Cable & Wireless (St.Vincent) Limited | VC |
| 72.51.91.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.92.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.93.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.94.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.98.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.99.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.101.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.102.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.103.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.110.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.112.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.113.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.116.0/24 | BGP route | AS14813 Columbus Telecommunications (Barbados) Limited | — |
| 72.51.122.0/24 | WHOIS (ARIN) | Cable & Wireless (St.Vincent) Limited | VC |
| 72.51.123.0/24 | WHOIS (ARIN) | Cable & Wireless (St.Vincent) Limited | VC |
| 72.51.124.0/24 | BGP route | AS46650 Columbus Communications Grenada Ltd. | — |
| 72.51.124.0/24 | WHOIS (ARIN) | St. George's University | GD |
| 72.51.125.0/24 | BGP route | AS11139 Cable & Wireless Dominica | — |
| 72.51.125.0/24 | WHOIS (ARIN) | Cable & Wiresles Tortola | — |
| 72.51.126.0/24 | BGP route | AS11139 Cable & Wireless Dominica | — |
| 72.51.126.0/24 | WHOIS (ARIN) | Cable & Wiresles Tortola | — |
| 72.51.127.0/24 | BGP route | AS11139 Cable & Wireless Dominica | — |
| 72.51.127.0/24 | WHOIS (ARIN) | Cable & Wiresles Tortola | — |
| 72.51.116.64/27 | WHOIS (ARIN) | First Caribbean International Bank | BB |
| 72.51.116.0/29 | WHOIS (ARIN) | CGM INSURANCE BROKERS (BARBADOS) LTD | BB |
| 72.51.116.8/29 | WHOIS (ARIN) | Barbados Immigration Department | BB |
| 72.51.116.16/29 | WHOIS (ARIN) | Garrison Secondary School | BB |
| 72.51.116.24/29 | WHOIS (ARIN) | CGM INSURANCE BROKERS (BARBADOS) LTD | BB |
| 72.51.116.40/29 | WHOIS (ARIN) | Chevron Eastern Caribbean SRL | BB |
| 72.51.116.48/29 | WHOIS (ARIN) | ANSA MCAL (BARBADOS) LTD | BB |
| 72.51.116.56/29 | WHOIS (ARIN) | Parliament of Barbados | BB |