| 204.0.0.0/8 | WHOIS (ARIN) | American Registry for Internet Numbers | US |
| 204.198.0.0/15 | BGP route | AS3356 Level 3 Parent, LLC | — |
| 204.199.0.0/16 | WHOIS (ARIN) | CTL LATAM | PE |
| 204.199.0.0/16 | ARIN assigned | — | US |
| 204.199.32.0/19 | BGP route | AS3549 Level 3 Parent, LLC | — |
| 204.199.32.0/19 | WHOIS (ARIN) | CTL Brazil | — |
| 204.199.38.0/24 | BGP route | AS3549 Level 3 Parent, LLC | — |
| 204.199.42.0/24 | BGP route | AS3549 Level 3 Parent, LLC | — |
| 204.199.47.0/24 | BGP route | AS10753 Level 3 Parent, LLC | — |
| 204.199.55.0/24 | BGP route | AS3549 Level 3 Parent, LLC | — |
| 204.199.58.128/26 | BGP route | AS273651 ARLEQUIM TECHNOLOGIES S.A. | — |
| 204.199.33.192/27 | BGP route | AS3356 Level 3 Parent, LLC | — |
| 204.199.34.192/27 | BGP route | AS3356 Level 3 Parent, LLC | — |
| 204.199.38.32/27 | BGP route | AS3356 Level 3 Parent, LLC | — |
| 204.199.38.32/27 | WHOIS (ARIN) | SERVICO DE APOIO AS MICRO E PEQUENAS EMPRESAS DO PARANA - SEBRAE/PR | BR |
| 204.199.41.160/27 | BGP route | AS3356 Level 3 Parent, LLC | — |
| 204.199.41.224/27 | BGP route | AS3356 Level 3 Parent, LLC | — |
| 204.199.46.64/27 | BGP route | AS10753 Level 3 Parent, LLC | — |
| 204.199.52.32/27 | BGP route | AS10753 Level 3 Parent, LLC | — |
| 204.199.56.128/27 | BGP route | AS10753 Level 3 Parent, LLC | — |
| 204.199.59.64/27 | BGP route | AS3356 Level 3 Parent, LLC | — |
| 204.199.59.96/27 | BGP route | AS10753 Level 3 Parent, LLC | — |
| 204.199.33.32/28 | WHOIS (ARIN) | ANP TELECOMUNICACIONES | BR |
| 204.199.36.168/29 | WHOIS (ARIN) | AECIO ALVES DE ABREU | BR |