IPアドレスから地理的位置情報(GeoIPLocation)の検索機能を公開しました。
CIDRをIPアドレスに展開ツール v2.0.3
IPv4形式のIPアドレスは192.168.0.1などの一般的な形式だけでなく、
192.168.0.1/24 などのネットマスク指定(/24部分)による範囲指定なども利用ができます。
これはCIDR形式、プレフィックス指定などとも呼ばれています。
ここではこのネットマスク指定によるIPアドレス範囲をIPアドレスに展開して表示します。
以下に、ネットマスク形式のIPアドレスを入力すると、
下部に対して、CIDR指定に含まれるIPアドレスが表示されます。
また範囲が広く、含まれるIPアドレスが多い場合には、
結果は「xxx.xxx.xxx.xxx – xxx.xxx.xxx.xxx」形式の範囲で表示します。
範囲表示された場合は、リンクをクリックすると範囲内のIPを再展開できます。
目次
CIDR形式 (198.171.228.0/23) から範囲内のIPアドレス展開
表示値でそのまま実行するとデモ動作の確認ができます。
CIDR展開情報
入力されたCIDRのネットワーク情報です。
| 属性 | 値 |
|---|---|
| 入力IP範囲 | 198.171.228.0/23 |
| ネットワーク(CIDR) | 198.171.228.0/23 |
| サブネット表記 | 198.171.228.0/255.255.254.0 |
| 短縮表記 | 198.171.228 |
| IPアドレス範囲 | 198.171.228.0 - 198.171.229.255 |
| IPアドレス総数 | 512 |
| ネットワークIP | 198.171.228.0 |
| ブロードキャストIP | 198.171.229.255 |
| ホストアドレス範囲 | 198.171.228.1 - 198.171.229.254 有効ホスト数( 510 台 ) |
| サブネットマスク | 255.255.254.0 |
| クラス属性 | クラスＣ |
IPアドレスの展開結果
IPアドレスの展開を行いました
| No | IPアドレス範囲 |
|---|---|
| 1 | 198.171.228.0 |
| 2 | 198.171.228.1 |
| 3 | 198.171.228.2 |
| 4 | 198.171.228.3 |
| 5 | 198.171.228.4 |
| 6 | 198.171.228.5 |
| 7 | 198.171.228.6 |
| 8 | 198.171.228.7 |
| 9 | 198.171.228.8 |
| 10 | 198.171.228.9 |
| 11 | 198.171.228.10 |
| 12 | 198.171.228.11 |
| 13 | 198.171.228.12 |
| 14 | 198.171.228.13 |
| 15 | 198.171.228.14 |
| 16 | 198.171.228.15 |
| 17 | 198.171.228.16 |
| 18 | 198.171.228.17 |
| 19 | 198.171.228.18 |
| 20 | 198.171.228.19 |
| 21 | 198.171.228.20 |
| 22 | 198.171.228.21 |
| 23 | 198.171.228.22 |
| 24 | 198.171.228.23 |
| 25 | 198.171.228.24 |
| 26 | 198.171.228.25 |
| 27 | 198.171.228.26 |
| 28 | 198.171.228.27 |
| 29 | 198.171.228.28 |
| 30 | 198.171.228.29 |
| 31 | 198.171.228.30 |
| 32 | 198.171.228.31 |
| 33 | 198.171.228.32 |
| 34 | 198.171.228.33 |
| 35 | 198.171.228.34 |
| 36 | 198.171.228.35 |
| 37 | 198.171.228.36 |
| 38 | 198.171.228.37 |
| 39 | 198.171.228.38 |
| 40 | 198.171.228.39 |
| 41 | 198.171.228.40 |
| 42 | 198.171.228.41 |
| 43 | 198.171.228.42 |
| 44 | 198.171.228.43 |
| 45 | 198.171.228.44 |
| 46 | 198.171.228.45 |
| 47 | 198.171.228.46 |
| 48 | 198.171.228.47 |
| 49 | 198.171.228.48 |
| 50 | 198.171.228.49 |
| 51 | 198.171.228.50 |
| 52 | 198.171.228.51 |
| 53 | 198.171.228.52 |
| 54 | 198.171.228.53 |
| 55 | 198.171.228.54 |
| 56 | 198.171.228.55 |
| 57 | 198.171.228.56 |
| 58 | 198.171.228.57 |
| 59 | 198.171.228.58 |
| 60 | 198.171.228.59 |
| 61 | 198.171.228.60 |
| 62 | 198.171.228.61 |
| 63 | 198.171.228.62 |
| 64 | 198.171.228.63 |
| 65 | 198.171.228.64 |
| 66 | 198.171.228.65 |
| 67 | 198.171.228.66 |
| 68 | 198.171.228.67 |
| 69 | 198.171.228.68 |
| 70 | 198.171.228.69 |
| 71 | 198.171.228.70 |
| 72 | 198.171.228.71 |
| 73 | 198.171.228.72 |
| 74 | 198.171.228.73 |
| 75 | 198.171.228.74 |
| 76 | 198.171.228.75 |
| 77 | 198.171.228.76 |
| 78 | 198.171.228.77 |
| 79 | 198.171.228.78 |
| 80 | 198.171.228.79 |
| 81 | 198.171.228.80 |
| 82 | 198.171.228.81 |
| 83 | 198.171.228.82 |
| 84 | 198.171.228.83 |
| 85 | 198.171.228.84 |
| 86 | 198.171.228.85 |
| 87 | 198.171.228.86 |
| 88 | 198.171.228.87 |
| 89 | 198.171.228.88 |
| 90 | 198.171.228.89 |
| 91 | 198.171.228.90 |
| 92 | 198.171.228.91 |
| 93 | 198.171.228.92 |
| 94 | 198.171.228.93 |
| 95 | 198.171.228.94 |
| 96 | 198.171.228.95 |
| 97 | 198.171.228.96 |
| 98 | 198.171.228.97 |
| 99 | 198.171.228.98 |
| 100 | 198.171.228.99 |
| 101 | 198.171.228.100 |
| 102 | 198.171.228.101 |
| 103 | 198.171.228.102 |
| 104 | 198.171.228.103 |
| 105 | 198.171.228.104 |
| 106 | 198.171.228.105 |
| 107 | 198.171.228.106 |
| 108 | 198.171.228.107 |
| 109 | 198.171.228.108 |
| 110 | 198.171.228.109 |
| 111 | 198.171.228.110 |
| 112 | 198.171.228.111 |
| 113 | 198.171.228.112 |
| 114 | 198.171.228.113 |
| 115 | 198.171.228.114 |
| 116 | 198.171.228.115 |
| 117 | 198.171.228.116 |
| 118 | 198.171.228.117 |
| 119 | 198.171.228.118 |
| 120 | 198.171.228.119 |
| 121 | 198.171.228.120 |
| 122 | 198.171.228.121 |
| 123 | 198.171.228.122 |
| 124 | 198.171.228.123 |
| 125 | 198.171.228.124 |
| 126 | 198.171.228.125 |
| 127 | 198.171.228.126 |
| 128 | 198.171.228.127 |
| 129 | 198.171.228.128 |
| 130 | 198.171.228.129 |
| 131 | 198.171.228.130 |
| 132 | 198.171.228.131 |
| 133 | 198.171.228.132 |
| 134 | 198.171.228.133 |
| 135 | 198.171.228.134 |
| 136 | 198.171.228.135 |
| 137 | 198.171.228.136 |
| 138 | 198.171.228.137 |
| 139 | 198.171.228.138 |
| 140 | 198.171.228.139 |
| 141 | 198.171.228.140 |
| 142 | 198.171.228.141 |
| 143 | 198.171.228.142 |
| 144 | 198.171.228.143 |
| 145 | 198.171.228.144 |
| 146 | 198.171.228.145 |
| 147 | 198.171.228.146 |
| 148 | 198.171.228.147 |
| 149 | 198.171.228.148 |
| 150 | 198.171.228.149 |
| 151 | 198.171.228.150 |
| 152 | 198.171.228.151 |
| 153 | 198.171.228.152 |
| 154 | 198.171.228.153 |
| 155 | 198.171.228.154 |
| 156 | 198.171.228.155 |
| 157 | 198.171.228.156 |
| 158 | 198.171.228.157 |
| 159 | 198.171.228.158 |
| 160 | 198.171.228.159 |
| 161 | 198.171.228.160 |
| 162 | 198.171.228.161 |
| 163 | 198.171.228.162 |
| 164 | 198.171.228.163 |
| 165 | 198.171.228.164 |
| 166 | 198.171.228.165 |
| 167 | 198.171.228.166 |
| 168 | 198.171.228.167 |
| 169 | 198.171.228.168 |
| 170 | 198.171.228.169 |
| 171 | 198.171.228.170 |
| 172 | 198.171.228.171 |
| 173 | 198.171.228.172 |
| 174 | 198.171.228.173 |
| 175 | 198.171.228.174 |
| 176 | 198.171.228.175 |
| 177 | 198.171.228.176 |
| 178 | 198.171.228.177 |
| 179 | 198.171.228.178 |
| 180 | 198.171.228.179 |
| 181 | 198.171.228.180 |
| 182 | 198.171.228.181 |
| 183 | 198.171.228.182 |
| 184 | 198.171.228.183 |
| 185 | 198.171.228.184 |
| 186 | 198.171.228.185 |
| 187 | 198.171.228.186 |
| 188 | 198.171.228.187 |
| 189 | 198.171.228.188 |
| 190 | 198.171.228.189 |
| 191 | 198.171.228.190 |
| 192 | 198.171.228.191 |
| 193 | 198.171.228.192 |
| 194 | 198.171.228.193 |
| 195 | 198.171.228.194 |
| 196 | 198.171.228.195 |
| 197 | 198.171.228.196 |
| 198 | 198.171.228.197 |
| 199 | 198.171.228.198 |
| 200 | 198.171.228.199 |
| 201 | 198.171.228.200 |
| 202 | 198.171.228.201 |
| 203 | 198.171.228.202 |
| 204 | 198.171.228.203 |
| 205 | 198.171.228.204 |
| 206 | 198.171.228.205 |
| 207 | 198.171.228.206 |
| 208 | 198.171.228.207 |
| 209 | 198.171.228.208 |
| 210 | 198.171.228.209 |
| 211 | 198.171.228.210 |
| 212 | 198.171.228.211 |
| 213 | 198.171.228.212 |
| 214 | 198.171.228.213 |
| 215 | 198.171.228.214 |
| 216 | 198.171.228.215 |
| 217 | 198.171.228.216 |
| 218 | 198.171.228.217 |
| 219 | 198.171.228.218 |
| 220 | 198.171.228.219 |
| 221 | 198.171.228.220 |
| 222 | 198.171.228.221 |
| 223 | 198.171.228.222 |
| 224 | 198.171.228.223 |
| 225 | 198.171.228.224 |
| 226 | 198.171.228.225 |
| 227 | 198.171.228.226 |
| 228 | 198.171.228.227 |
| 229 | 198.171.228.228 |
| 230 | 198.171.228.229 |
| 231 | 198.171.228.230 |
| 232 | 198.171.228.231 |
| 233 | 198.171.228.232 |
| 234 | 198.171.228.233 |
| 235 | 198.171.228.234 |
| 236 | 198.171.228.235 |
| 237 | 198.171.228.236 |
| 238 | 198.171.228.237 |
| 239 | 198.171.228.238 |
| 240 | 198.171.228.239 |
| 241 | 198.171.228.240 |
| 242 | 198.171.228.241 |
| 243 | 198.171.228.242 |
| 244 | 198.171.228.243 |
| 245 | 198.171.228.244 |
| 246 | 198.171.228.245 |
| 247 | 198.171.228.246 |
| 248 | 198.171.228.247 |
| 249 | 198.171.228.248 |
| 250 | 198.171.228.249 |
| 251 | 198.171.228.250 |
| 252 | 198.171.228.251 |
| 253 | 198.171.228.252 |
| 254 | 198.171.228.253 |
| 255 | 198.171.228.254 |
| 256 | 198.171.228.255 |
| 257 | 198.171.229.0 |
| 258 | 198.171.229.1 |
| 259 | 198.171.229.2 |
| 260 | 198.171.229.3 |
| 261 | 198.171.229.4 |
| 262 | 198.171.229.5 |
| 263 | 198.171.229.6 |
| 264 | 198.171.229.7 |
| 265 | 198.171.229.8 |
| 266 | 198.171.229.9 |
| 267 | 198.171.229.10 |
| 268 | 198.171.229.11 |
| 269 | 198.171.229.12 |
| 270 | 198.171.229.13 |
| 271 | 198.171.229.14 |
| 272 | 198.171.229.15 |
| 273 | 198.171.229.16 |
| 274 | 198.171.229.17 |
| 275 | 198.171.229.18 |
| 276 | 198.171.229.19 |
| 277 | 198.171.229.20 |
| 278 | 198.171.229.21 |
| 279 | 198.171.229.22 |
| 280 | 198.171.229.23 |
| 281 | 198.171.229.24 |
| 282 | 198.171.229.25 |
| 283 | 198.171.229.26 |
| 284 | 198.171.229.27 |
| 285 | 198.171.229.28 |
| 286 | 198.171.229.29 |
| 287 | 198.171.229.30 |
| 288 | 198.171.229.31 |
| 289 | 198.171.229.32 |
| 290 | 198.171.229.33 |
| 291 | 198.171.229.34 |
| 292 | 198.171.229.35 |
| 293 | 198.171.229.36 |
| 294 | 198.171.229.37 |
| 295 | 198.171.229.38 |
| 296 | 198.171.229.39 |
| 297 | 198.171.229.40 |
| 298 | 198.171.229.41 |
| 299 | 198.171.229.42 |
| 300 | 198.171.229.43 |
| 301 | 198.171.229.44 |
| 302 | 198.171.229.45 |
| 303 | 198.171.229.46 |
| 304 | 198.171.229.47 |
| 305 | 198.171.229.48 |
| 306 | 198.171.229.49 |
| 307 | 198.171.229.50 |
| 308 | 198.171.229.51 |
| 309 | 198.171.229.52 |
| 310 | 198.171.229.53 |
| 311 | 198.171.229.54 |
| 312 | 198.171.229.55 |
| 313 | 198.171.229.56 |
| 314 | 198.171.229.57 |
| 315 | 198.171.229.58 |
| 316 | 198.171.229.59 |
| 317 | 198.171.229.60 |
| 318 | 198.171.229.61 |
| 319 | 198.171.229.62 |
| 320 | 198.171.229.63 |
| 321 | 198.171.229.64 |
| 322 | 198.171.229.65 |
| 323 | 198.171.229.66 |
| 324 | 198.171.229.67 |
| 325 | 198.171.229.68 |
| 326 | 198.171.229.69 |
| 327 | 198.171.229.70 |
| 328 | 198.171.229.71 |
| 329 | 198.171.229.72 |
| 330 | 198.171.229.73 |
| 331 | 198.171.229.74 |
| 332 | 198.171.229.75 |
| 333 | 198.171.229.76 |
| 334 | 198.171.229.77 |
| 335 | 198.171.229.78 |
| 336 | 198.171.229.79 |
| 337 | 198.171.229.80 |
| 338 | 198.171.229.81 |
| 339 | 198.171.229.82 |
| 340 | 198.171.229.83 |
| 341 | 198.171.229.84 |
| 342 | 198.171.229.85 |
| 343 | 198.171.229.86 |
| 344 | 198.171.229.87 |
| 345 | 198.171.229.88 |
| 346 | 198.171.229.89 |
| 347 | 198.171.229.90 |
| 348 | 198.171.229.91 |
| 349 | 198.171.229.92 |
| 350 | 198.171.229.93 |
| 351 | 198.171.229.94 |
| 352 | 198.171.229.95 |
| 353 | 198.171.229.96 |
| 354 | 198.171.229.97 |
| 355 | 198.171.229.98 |
| 356 | 198.171.229.99 |
| 357 | 198.171.229.100 |
| 358 | 198.171.229.101 |
| 359 | 198.171.229.102 |
| 360 | 198.171.229.103 |
| 361 | 198.171.229.104 |
| 362 | 198.171.229.105 |
| 363 | 198.171.229.106 |
| 364 | 198.171.229.107 |
| 365 | 198.171.229.108 |
| 366 | 198.171.229.109 |
| 367 | 198.171.229.110 |
| 368 | 198.171.229.111 |
| 369 | 198.171.229.112 |
| 370 | 198.171.229.113 |
| 371 | 198.171.229.114 |
| 372 | 198.171.229.115 |
| 373 | 198.171.229.116 |
| 374 | 198.171.229.117 |
| 375 | 198.171.229.118 |
| 376 | 198.171.229.119 |
| 377 | 198.171.229.120 |
| 378 | 198.171.229.121 |
| 379 | 198.171.229.122 |
| 380 | 198.171.229.123 |
| 381 | 198.171.229.124 |
| 382 | 198.171.229.125 |
| 383 | 198.171.229.126 |
| 384 | 198.171.229.127 |
| 385 | 198.171.229.128 |
| 386 | 198.171.229.129 |
| 387 | 198.171.229.130 |
| 388 | 198.171.229.131 |
| 389 | 198.171.229.132 |
| 390 | 198.171.229.133 |
| 391 | 198.171.229.134 |
| 392 | 198.171.229.135 |
| 393 | 198.171.229.136 |
| 394 | 198.171.229.137 |
| 395 | 198.171.229.138 |
| 396 | 198.171.229.139 |
| 397 | 198.171.229.140 |
| 398 | 198.171.229.141 |
| 399 | 198.171.229.142 |
| 400 | 198.171.229.143 |
| 401 | 198.171.229.144 |
| 402 | 198.171.229.145 |
| 403 | 198.171.229.146 |
| 404 | 198.171.229.147 |
| 405 | 198.171.229.148 |
| 406 | 198.171.229.149 |
| 407 | 198.171.229.150 |
| 408 | 198.171.229.151 |
| 409 | 198.171.229.152 |
| 410 | 198.171.229.153 |
| 411 | 198.171.229.154 |
| 412 | 198.171.229.155 |
| 413 | 198.171.229.156 |
| 414 | 198.171.229.157 |
| 415 | 198.171.229.158 |
| 416 | 198.171.229.159 |
| 417 | 198.171.229.160 |
| 418 | 198.171.229.161 |
| 419 | 198.171.229.162 |
| 420 | 198.171.229.163 |
| 421 | 198.171.229.164 |
| 422 | 198.171.229.165 |
| 423 | 198.171.229.166 |
| 424 | 198.171.229.167 |
| 425 | 198.171.229.168 |
| 426 | 198.171.229.169 |
| 427 | 198.171.229.170 |
| 428 | 198.171.229.171 |
| 429 | 198.171.229.172 |
| 430 | 198.171.229.173 |
| 431 | 198.171.229.174 |
| 432 | 198.171.229.175 |
| 433 | 198.171.229.176 |
| 434 | 198.171.229.177 |
| 435 | 198.171.229.178 |
| 436 | 198.171.229.179 |
| 437 | 198.171.229.180 |
| 438 | 198.171.229.181 |
| 439 | 198.171.229.182 |
| 440 | 198.171.229.183 |
| 441 | 198.171.229.184 |
| 442 | 198.171.229.185 |
| 443 | 198.171.229.186 |
| 444 | 198.171.229.187 |
| 445 | 198.171.229.188 |
| 446 | 198.171.229.189 |
| 447 | 198.171.229.190 |
| 448 | 198.171.229.191 |
| 449 | 198.171.229.192 |
| 450 | 198.171.229.193 |
| 451 | 198.171.229.194 |
| 452 | 198.171.229.195 |
| 453 | 198.171.229.196 |
| 454 | 198.171.229.197 |
| 455 | 198.171.229.198 |
| 456 | 198.171.229.199 |
| 457 | 198.171.229.200 |
| 458 | 198.171.229.201 |
| 459 | 198.171.229.202 |
| 460 | 198.171.229.203 |
| 461 | 198.171.229.204 |
| 462 | 198.171.229.205 |
| 463 | 198.171.229.206 |
| 464 | 198.171.229.207 |
| 465 | 198.171.229.208 |
| 466 | 198.171.229.209 |
| 467 | 198.171.229.210 |
| 468 | 198.171.229.211 |
| 469 | 198.171.229.212 |
| 470 | 198.171.229.213 |
| 471 | 198.171.229.214 |
| 472 | 198.171.229.215 |
| 473 | 198.171.229.216 |
| 474 | 198.171.229.217 |
| 475 | 198.171.229.218 |
| 476 | 198.171.229.219 |
| 477 | 198.171.229.220 |
| 478 | 198.171.229.221 |
| 479 | 198.171.229.222 |
| 480 | 198.171.229.223 |
| 481 | 198.171.229.224 |
| 482 | 198.171.229.225 |
| 483 | 198.171.229.226 |
| 484 | 198.171.229.227 |
| 485 | 198.171.229.228 |
| 486 | 198.171.229.229 |
| 487 | 198.171.229.230 |
| 488 | 198.171.229.231 |
| 489 | 198.171.229.232 |
| 490 | 198.171.229.233 |
| 491 | 198.171.229.234 |
| 492 | 198.171.229.235 |
| 493 | 198.171.229.236 |
| 494 | 198.171.229.237 |
| 495 | 198.171.229.238 |
| 496 | 198.171.229.239 |
| 497 | 198.171.229.240 |
| 498 | 198.171.229.241 |
| 499 | 198.171.229.242 |
| 500 | 198.171.229.243 |
| 501 | 198.171.229.244 |
| 502 | 198.171.229.245 |
| 503 | 198.171.229.246 |
| 504 | 198.171.229.247 |
| 505 | 198.171.229.248 |
| 506 | 198.171.229.249 |
| 507 | 198.171.229.250 |
| 508 | 198.171.229.251 |
| 509 | 198.171.229.252 |
| 510 | 198.171.229.253 |
| 511 | 198.171.229.254 |
| 512 | 198.171.229.255 |
IPアドレスの特殊属性
入力されたIPアドレス範囲の特殊IP属性に関する情報です。
特殊属性には該当しませんでした。
| IP特殊属性 | 概要 | CIDR |
|---|---|---|
| グローバルアドレス | プライベートIPアドレス、リンクローカルアドレス、特殊用途のIPアドレスなどを除いた |
GLOBALS |
IPアドレスの特殊属性に割当てられた
各範囲・グローバルIPアドレスの範囲については、
以下リンク先でご確認下さい。
このツールの使用方法については以下でご紹介しています。
関連ツール
このツールに関連してCIDRをすべて展開するのではなく、
CIDR範囲に１つのIPアドレスが含まれているかどうかを、
チェックして確認するツールを作成公開しました。
併せてご活用いただければ幸いです。
さいごに
CIDRからIPアドレスの範囲をイメージすることは、
慣れるまでは少しとっつきにくい部分もあります。
ここでは実際に範囲を目視して、
それぞれの範囲を細かく見ていくことができるようにしています。
お役に立ちますと幸いです。
更新履歴情報
| Ver. | 更新日 | 更新内容 |
|---|---|---|
| 2.0.3 | 2018/05/10 | /32指定を行った際にエラーになる不具合を訂正。 |
| 2.0.2 | 2018/05/10 | 実行結果に表示のIP範囲再展開リンクをJavaScriptからURL形式へ変更。 Shiftを押しながらクリック等することで別画面表示を可能にし、 URLから実行結果を開けるように対応。 |
| 2.0.1 | 2018/05/09 | 実行結果に表示のCIDR再展開リンクをJavaScriptからURL形式へ変更。 Shiftを押しながらクリック等することで別画面表示を可能にし、 URLから実行結果を開けるように対応。 |
| 1.0.2 | 2015/02/21 | 特定のネットマスクの値に対しての表示結果を調整 |
| 1.0.1 | 2015/02/06 | 公開 |
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