| 72.0.0.0/8 | WHOIS (ARIN) | American Registry for Internet Numbers | US |
| 72.236.0.0/15 | BGP route | AS3356 Level 3 Parent, LLC | — |
| 72.236.0.0/15 | WHOIS (ARIN) | Level 3 Parent, LLC | — |
| 72.236.0.0/15 | ARIN assigned | — | US |
| 72.237.88.0/22 | BGP route | AS40047 Intermediate Unit 1 | — |
| 72.237.88.0/22 | WHOIS (ARIN) | Intermediate Unit One | US |
| 72.236.86.0/23 | BGP route | AS64200 VIVID-HOSTING LLC | — |
| 72.237.76.0/23 | BGP route | AS16567 Netrix LLC | — |
| 72.237.76.0/23 | WHOIS (ARIN) | Distributed Systems Services, Inc. | US |
| 72.237.170.0/23 | BGP route | AS62841 City of New Orleans | — |
| 72.237.170.0/23 | WHOIS (ARIN) | City of New Orleans | US |
| 72.237.212.0/23 | WHOIS (ARIN) | I-Evolve Technology Services | US |
| 72.237.238.0/23 | BGP route | AS3356 Level 3 Parent, LLC | — |
| 72.237.238.0/23 | WHOIS (ARIN) | Industrial Services of America, Inc | US |
| 72.236.26.0/24 | BGP route | AS20182 ESSENT GUARANTY, INC. | — |
| 72.236.26.0/24 | WHOIS (ARIN) | Triad Guaranty Insurance | US |
| 72.236.28.0/24 | BGP route | AS10858 Hypertherm Inc. | — |
| 72.236.28.0/24 | WHOIS (ARIN) | Hypertherm Inc. | US |
| 72.236.92.0/24 | BGP route | AS55204 ClearPoint | — |
| 72.236.101.0/24 | BGP route | AS55204 ClearPoint | — |
| 72.236.147.0/24 | BGP route | AS23209 Virginia Housing Development Authority | — |
| 72.236.147.0/24 | WHOIS (ARIN) | Virginia Housing Development Authority | US |
| 72.236.151.0/24 | WHOIS (ARIN) | APPLIEDINFO PARTNERS, INC | US |
| 72.236.226.0/24 | BGP route | AS25873 MERCY MEDICAL CENTER | — |
| 72.236.226.0/24 | WHOIS (ARIN) | Mercy Medical Center | US |
| 72.236.255.0/24 | BGP route | AS3356 Level 3 Parent, LLC | — |
| 72.237.4.0/24 | BGP route | AS26808 Utica University | — |
| 72.237.4.0/24 | WHOIS (ARIN) | UTICA COLLEGE | US |
| 72.237.30.0/24 | BGP route | AS19674 Navpoint Internet | — |
| 72.237.30.0/24 | WHOIS (ARIN) | Navpoint Internet | US |
| 72.237.36.0/24 | BGP route | AS64200 VIVID-HOSTING LLC | — |
| 72.237.48.0/24 | BGP route | AS26372 Vermont Information Processing | — |
| 72.237.48.0/24 | WHOIS (ARIN) | Vermont Information Processing Inc | US |
| 72.237.51.0/24 | BGP route | AS25750 Southwestern Vermont Health Care Corporation | — |
| 72.237.51.0/24 | WHOIS (ARIN) | Southwestern Vermont Health Care Corporation | US |
| 72.237.76.0/24 | BGP route | AS16567 Netrix LLC | — |
| 72.237.77.0/24 | BGP route | AS16567 Netrix LLC | — |
| 72.237.159.0/24 | BGP route | AS27548 United States Advanced Network Inc. | — |
| 72.237.159.0/24 | WHOIS (ARIN) | United States Advanced Network Inc. | US |
| 72.237.174.0/24 | BGP route | AS3356 Level 3 Parent, LLC | — |
| 72.237.174.0/24 | WHOIS (ARIN) | Williamson County Government | US |
| 72.237.184.0/24 | BGP route | AS15085 Immedion, LLC | — |
| 72.237.206.0/24 | WHOIS (ARIN) | Genesis HealthCare | US |
| 72.237.212.0/24 | BGP route | AS13602 I-Evolve Technology Services | — |
| 72.237.213.0/24 | BGP route | AS13602 I-Evolve Technology Services | — |
| 72.237.216.0/24 | BGP route | AS3356 Level 3 Parent, LLC | — |
| 72.237.219.0/24 | BGP route | AS3356 Level 3 Parent, LLC | — |
| 72.237.219.0/24 | WHOIS (ARIN) | MATRIX TELECOMMUNICATIONS | US |
| 72.237.220.0/24 | BGP route | AS21969 Firstsource Advantage LLC | — |
| 72.237.220.0/24 | WHOIS (ARIN) | Account Solutions Group, LLC | US |
| 72.237.31.128/26 | WHOIS (ARIN) | Pennsylvania College of Optometry | US |
| 72.237.119.0/26 | WHOIS (ARIN) | QnA Consulting | US |
| 72.237.119.64/26 | WHOIS (ARIN) | Elster Electricity | US |
| 72.236.141.192/27 | WHOIS (ARIN) | Lee County Property Appraiser | US |
| 72.236.154.192/27 | WHOIS (ARIN) | Frederick Community College | US |
| 72.236.173.160/28 | WHOIS (ARIN) | MEDICAL DATA SYSTEMS | US |
| 72.236.131.128/29 | WHOIS (ARIN) | Lee County Tax Collector | US |
| 72.236.138.240/29 | WHOIS (ARIN) | McGregor Baptist Church | US |