Les adresses IP débutant par 204.99.55 sont fournies par AT&T Data Communications Services, elles appartiennent au CIDR (Classless Inter-Domain Routing) 204.99.0.0/17, le bloc IP comprant les adresses de 204.99.0.0 à 204.99.127.255). Le numéro de système autonome (ASN) est 2386.
| ASN | 2386 |
| IP commençant par | 204.99.0.0 |
| IP se terminant par | 204.99.127.255 |
| Nom ASN | AT&T Data Communications Services |
| CDIR | 204.99.0.0/17 |
| IP numérique | |
| Registe | arin |
| Dernière mise à jour | 25/08/2018 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Nashville | 36,1659 | -86,7844 | 2018-08-25 |
| MaxMind | US | États-Unis | - | Scottsdale | 33,6119 | -111,8906 | 2018-08-25 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 204.99.55.0 | 3429054208 | 0 |
| 204.99.55.1 | 3429054209 | 0 |
| 204.99.55.2 | 3429054210 | 0 |
| 204.99.55.3 | 3429054211 | 0 |
| 204.99.55.4 | 3429054212 | 0 |
| 204.99.55.5 | 3429054213 | 0 |
| 204.99.55.6 | 3429054214 | 0 |
| 204.99.55.7 | 3429054215 | 0 |
| 204.99.55.8 | 3429054216 | 0 |
| 204.99.55.9 | 3429054217 | 0 |
| 204.99.55.10 | 3429054218 | 0 |
| 204.99.55.11 | 3429054219 | 0 |
| 204.99.55.12 | 3429054220 | 0 |
| 204.99.55.13 | 3429054221 | 0 |
| 204.99.55.14 | 3429054222 | 0 |
| 204.99.55.15 | 3429054223 | 0 |
| 204.99.55.16 | 3429054224 | 0 |
| 204.99.55.17 | 3429054225 | 0 |
| 204.99.55.18 | 3429054226 | 0 |
| 204.99.55.19 | 3429054227 | 0 |
| 204.99.55.20 | 3429054228 | 0 |
| 204.99.55.21 | 3429054229 | 0 |
| 204.99.55.22 | 3429054230 | 0 |
| 204.99.55.23 | 3429054231 | 0 |
| 204.99.55.24 | 3429054232 | 0 |
| 204.99.55.25 | 3429054233 | 0 |
| 204.99.55.26 | 3429054234 | 0 |
| 204.99.55.27 | 3429054235 | 0 |
| 204.99.55.28 | 3429054236 | 0 |
| 204.99.55.29 | 3429054237 | 0 |
| 204.99.55.30 | 3429054238 | 0 |
| 204.99.55.31 | 3429054239 | 0 |
| 204.99.55.32 | 3429054240 | 0 |
| 204.99.55.33 | 3429054241 | 0 |
| 204.99.55.34 | 3429054242 | 0 |
| 204.99.55.35 | 3429054243 | 0 |
| 204.99.55.36 | 3429054244 | 0 |
| 204.99.55.37 | 3429054245 | 0 |
| 204.99.55.38 | 3429054246 | 0 |
| 204.99.55.39 | 3429054247 | 0 |
| 204.99.55.40 | 3429054248 | 0 |
| 204.99.55.41 | 3429054249 | 0 |
| 204.99.55.42 | 3429054250 | 0 |
| 204.99.55.43 | 3429054251 | 0 |
| 204.99.55.44 | 3429054252 | 0 |
| 204.99.55.45 | 3429054253 | 0 |
| 204.99.55.46 | 3429054254 | 0 |
| 204.99.55.47 | 3429054255 | 0 |
| 204.99.55.48 | 3429054256 | 0 |
| 204.99.55.49 | 3429054257 | 0 |
| 204.99.55.50 | 3429054258 | 0 |
| 204.99.55.51 | 3429054259 | 0 |
| 204.99.55.52 | 3429054260 | 0 |
| 204.99.55.53 | 3429054261 | 0 |
| 204.99.55.54 | 3429054262 | 0 |
| 204.99.55.55 | 3429054263 | 0 |
| 204.99.55.56 | 3429054264 | 0 |
| 204.99.55.57 | 3429054265 | 0 |
| 204.99.55.58 | 3429054266 | 0 |
| 204.99.55.59 | 3429054267 | 0 |
| 204.99.55.60 | 3429054268 | 0 |
| 204.99.55.61 | 3429054269 | 0 |
| 204.99.55.62 | 3429054270 | 0 |
| 204.99.55.63 | 3429054271 | 0 |
| 204.99.55.64 | 3429054272 | 0 |
| 204.99.55.65 | 3429054273 | 0 |
| 204.99.55.66 | 3429054274 | 0 |
| 204.99.55.67 | 3429054275 | 0 |
| 204.99.55.68 | 3429054276 | 0 |
| 204.99.55.69 | 3429054277 | 0 |
| 204.99.55.70 | 3429054278 | 0 |
| 204.99.55.71 | 3429054279 | 0 |
| 204.99.55.72 | 3429054280 | 0 |
| 204.99.55.73 | 3429054281 | 0 |
| 204.99.55.74 | 3429054282 | 0 |
| 204.99.55.75 | 3429054283 | 0 |
| 204.99.55.76 | 3429054284 | 0 |
| 204.99.55.77 | 3429054285 | 0 |
| 204.99.55.78 | 3429054286 | 0 |
| 204.99.55.79 | 3429054287 | 0 |
| 204.99.55.80 | 3429054288 | 0 |
| 204.99.55.81 | 3429054289 | 0 |
| 204.99.55.82 | 3429054290 | 0 |
| 204.99.55.83 | 3429054291 | 0 |
| 204.99.55.84 | 3429054292 | 0 |
| 204.99.55.85 | 3429054293 | 0 |