Guyancourt is a city in with 21665 residents. We counted 31989 IPs from Maxmind database. Guyancourt has 21665 per resident.
| ASN | ASN Id | Total IP |
| Free SAS | AS12322 | 5334 |
| SFR | AS15557 | 5228 |
| Orange | AS3215 | 2796 |
| NC Numericable S.A. | AS21502 | 2600 |
| For peering, please mail peering@altitud | AS9003 | 2046 |
| Bouygues Telecom SA | AS5410 | 1256 |
| SFR | AS12626 | 634 |
| alsatis wisp network AS | AS48072 | 510 |
| Eurocenter Games Sarl | AS29639 | 510 |
| Bouygues Telecom SA | AS12844 | 508 |
| 111, Rue de Croix | AS8362 | 254 |
| Free Mobile SAS | AS51207 | 62 |