ASNs in Costa Rica — 109
| ASN | Name | Type  | Number of IPs |
|---|---|---|---|
| AS11830 | Instituto Costarricense de Electricidad y Telecom. | isp | 1,512,960 |
| AS52228 | Cable Tica | isp | 194,048 |
| AS262197 | MILLICOM CABLE COSTA RICA S.A. | isp | 164,608 |
| AS3790 | RADIOGRAFICA COSTARRICENSE | isp | 123,904 |
| AS263683 | Universidad de Costa Rica | education | 41,984 |
| AS52263 | Telecable Economico S.A. | isp | 34,560 |
| AS27876 | American Data Networks | isp | 14,080 |
| AS262145 | Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.) | isp | 10,240 |
| AS28086 | Worldcom de Costa Rica, S.A. | isp | 10,240 |
| AS262202 | Telefonica de Costa Rica TC, SA | isp | 10,240 |
| AS52423 | Data Miners S.A. ( Racknation.cr ) | hosting | 8,704 |
| AS28110 | NAVEGALO S.A. | hosting | 6,656 |
| AS262241 | COOPERATIVA DE ELECTRIFICACION RURAL DE ALFARO RUIZ R.L. | isp | 6,144 |
| AS262184 | GRUPO KONECTIVA LATAM S.A | business | 5,632 |
| AS28022 | CRISP S.A. | isp | 5,120 |
| AS263232 | ESPH.SA | isp | 4,096 |
| AS262171 | Telecom Logistics S.A. | isp | 4,096 |
| AS263762 | COOPERATIVA DE ELECTRIFICACIÓN RURAL DE GUANACASTE R.L. | isp | 4,096 |
| AS27908 | Tracity Inc. | business | 4,096 |
| AS64102 | Oracle Corporation | business | 4,096 |