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 (123.168.104.0/23) 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 | 123.168.104.0/23 |
| ネットワーク(CIDR) | 123.168.104.0/23 |
| サブネット表記 | 123.168.104.0/255.255.254.0 |
| 短縮表記 | 123.168.104 |
| IPアドレス範囲 | 123.168.104.0 - 123.168.105.255 |
| IPアドレス総数 | 512 |
| ネットワークIP | 123.168.104.0 |
| ブロードキャストIP | 123.168.105.255 |
| ホストアドレス範囲 | 123.168.104.1 - 123.168.105.254 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Ａ |
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 | 123.168.104.0 |
| 2 | 123.168.104.1 |
| 3 | 123.168.104.2 |
| 4 | 123.168.104.3 |
| 5 | 123.168.104.4 |
| 6 | 123.168.104.5 |
| 7 | 123.168.104.6 |
| 8 | 123.168.104.7 |
| 9 | 123.168.104.8 |
| 10 | 123.168.104.9 |
| 11 | 123.168.104.10 |
| 12 | 123.168.104.11 |
| 13 | 123.168.104.12 |
| 14 | 123.168.104.13 |
| 15 | 123.168.104.14 |
| 16 | 123.168.104.15 |
| 17 | 123.168.104.16 |
| 18 | 123.168.104.17 |
| 19 | 123.168.104.18 |
| 20 | 123.168.104.19 |
| 21 | 123.168.104.20 |
| 22 | 123.168.104.21 |
| 23 | 123.168.104.22 |
| 24 | 123.168.104.23 |
| 25 | 123.168.104.24 |
| 26 | 123.168.104.25 |
| 27 | 123.168.104.26 |
| 28 | 123.168.104.27 |
| 29 | 123.168.104.28 |
| 30 | 123.168.104.29 |
| 31 | 123.168.104.30 |
| 32 | 123.168.104.31 |
| 33 | 123.168.104.32 |
| 34 | 123.168.104.33 |
| 35 | 123.168.104.34 |
| 36 | 123.168.104.35 |
| 37 | 123.168.104.36 |
| 38 | 123.168.104.37 |
| 39 | 123.168.104.38 |
| 40 | 123.168.104.39 |
| 41 | 123.168.104.40 |
| 42 | 123.168.104.41 |
| 43 | 123.168.104.42 |
| 44 | 123.168.104.43 |
| 45 | 123.168.104.44 |
| 46 | 123.168.104.45 |
| 47 | 123.168.104.46 |
| 48 | 123.168.104.47 |
| 49 | 123.168.104.48 |
| 50 | 123.168.104.49 |
| 51 | 123.168.104.50 |
| 52 | 123.168.104.51 |
| 53 | 123.168.104.52 |
| 54 | 123.168.104.53 |
| 55 | 123.168.104.54 |
| 56 | 123.168.104.55 |
| 57 | 123.168.104.56 |
| 58 | 123.168.104.57 |
| 59 | 123.168.104.58 |
| 60 | 123.168.104.59 |
| 61 | 123.168.104.60 |
| 62 | 123.168.104.61 |
| 63 | 123.168.104.62 |
| 64 | 123.168.104.63 |
| 65 | 123.168.104.64 |
| 66 | 123.168.104.65 |
| 67 | 123.168.104.66 |
| 68 | 123.168.104.67 |
| 69 | 123.168.104.68 |
| 70 | 123.168.104.69 |
| 71 | 123.168.104.70 |
| 72 | 123.168.104.71 |
| 73 | 123.168.104.72 |
| 74 | 123.168.104.73 |
| 75 | 123.168.104.74 |
| 76 | 123.168.104.75 |
| 77 | 123.168.104.76 |
| 78 | 123.168.104.77 |
| 79 | 123.168.104.78 |
| 80 | 123.168.104.79 |
| 81 | 123.168.104.80 |
| 82 | 123.168.104.81 |
| 83 | 123.168.104.82 |
| 84 | 123.168.104.83 |
| 85 | 123.168.104.84 |
| 86 | 123.168.104.85 |
| 87 | 123.168.104.86 |
| 88 | 123.168.104.87 |
| 89 | 123.168.104.88 |
| 90 | 123.168.104.89 |
| 91 | 123.168.104.90 |
| 92 | 123.168.104.91 |
| 93 | 123.168.104.92 |
| 94 | 123.168.104.93 |
| 95 | 123.168.104.94 |
| 96 | 123.168.104.95 |
| 97 | 123.168.104.96 |
| 98 | 123.168.104.97 |
| 99 | 123.168.104.98 |
| 100 | 123.168.104.99 |
| 101 | 123.168.104.100 |
| 102 | 123.168.104.101 |
| 103 | 123.168.104.102 |
| 104 | 123.168.104.103 |
| 105 | 123.168.104.104 |
| 106 | 123.168.104.105 |
| 107 | 123.168.104.106 |
| 108 | 123.168.104.107 |
| 109 | 123.168.104.108 |
| 110 | 123.168.104.109 |
| 111 | 123.168.104.110 |
| 112 | 123.168.104.111 |
| 113 | 123.168.104.112 |
| 114 | 123.168.104.113 |
| 115 | 123.168.104.114 |
| 116 | 123.168.104.115 |
| 117 | 123.168.104.116 |
| 118 | 123.168.104.117 |
| 119 | 123.168.104.118 |
| 120 | 123.168.104.119 |
| 121 | 123.168.104.120 |
| 122 | 123.168.104.121 |
| 123 | 123.168.104.122 |
| 124 | 123.168.104.123 |
| 125 | 123.168.104.124 |
| 126 | 123.168.104.125 |
| 127 | 123.168.104.126 |
| 128 | 123.168.104.127 |
| 129 | 123.168.104.128 |
| 130 | 123.168.104.129 |
| 131 | 123.168.104.130 |
| 132 | 123.168.104.131 |
| 133 | 123.168.104.132 |
| 134 | 123.168.104.133 |
| 135 | 123.168.104.134 |
| 136 | 123.168.104.135 |
| 137 | 123.168.104.136 |
| 138 | 123.168.104.137 |
| 139 | 123.168.104.138 |
| 140 | 123.168.104.139 |
| 141 | 123.168.104.140 |
| 142 | 123.168.104.141 |
| 143 | 123.168.104.142 |
| 144 | 123.168.104.143 |
| 145 | 123.168.104.144 |
| 146 | 123.168.104.145 |
| 147 | 123.168.104.146 |
| 148 | 123.168.104.147 |
| 149 | 123.168.104.148 |
| 150 | 123.168.104.149 |
| 151 | 123.168.104.150 |
| 152 | 123.168.104.151 |
| 153 | 123.168.104.152 |
| 154 | 123.168.104.153 |
| 155 | 123.168.104.154 |
| 156 | 123.168.104.155 |
| 157 | 123.168.104.156 |
| 158 | 123.168.104.157 |
| 159 | 123.168.104.158 |
| 160 | 123.168.104.159 |
| 161 | 123.168.104.160 |
| 162 | 123.168.104.161 |
| 163 | 123.168.104.162 |
| 164 | 123.168.104.163 |
| 165 | 123.168.104.164 |
| 166 | 123.168.104.165 |
| 167 | 123.168.104.166 |
| 168 | 123.168.104.167 |
| 169 | 123.168.104.168 |
| 170 | 123.168.104.169 |
| 171 | 123.168.104.170 |
| 172 | 123.168.104.171 |
| 173 | 123.168.104.172 |
| 174 | 123.168.104.173 |
| 175 | 123.168.104.174 |
| 176 | 123.168.104.175 |
| 177 | 123.168.104.176 |
| 178 | 123.168.104.177 |
| 179 | 123.168.104.178 |
| 180 | 123.168.104.179 |
| 181 | 123.168.104.180 |
| 182 | 123.168.104.181 |
| 183 | 123.168.104.182 |
| 184 | 123.168.104.183 |
| 185 | 123.168.104.184 |
| 186 | 123.168.104.185 |
| 187 | 123.168.104.186 |
| 188 | 123.168.104.187 |
| 189 | 123.168.104.188 |
| 190 | 123.168.104.189 |
| 191 | 123.168.104.190 |
| 192 | 123.168.104.191 |
| 193 | 123.168.104.192 |
| 194 | 123.168.104.193 |
| 195 | 123.168.104.194 |
| 196 | 123.168.104.195 |
| 197 | 123.168.104.196 |
| 198 | 123.168.104.197 |
| 199 | 123.168.104.198 |
| 200 | 123.168.104.199 |
| 201 | 123.168.104.200 |
| 202 | 123.168.104.201 |
| 203 | 123.168.104.202 |
| 204 | 123.168.104.203 |
| 205 | 123.168.104.204 |
| 206 | 123.168.104.205 |
| 207 | 123.168.104.206 |
| 208 | 123.168.104.207 |
| 209 | 123.168.104.208 |
| 210 | 123.168.104.209 |
| 211 | 123.168.104.210 |
| 212 | 123.168.104.211 |
| 213 | 123.168.104.212 |
| 214 | 123.168.104.213 |
| 215 | 123.168.104.214 |
| 216 | 123.168.104.215 |
| 217 | 123.168.104.216 |
| 218 | 123.168.104.217 |
| 219 | 123.168.104.218 |
| 220 | 123.168.104.219 |
| 221 | 123.168.104.220 |
| 222 | 123.168.104.221 |
| 223 | 123.168.104.222 |
| 224 | 123.168.104.223 |
| 225 | 123.168.104.224 |
| 226 | 123.168.104.225 |
| 227 | 123.168.104.226 |
| 228 | 123.168.104.227 |
| 229 | 123.168.104.228 |
| 230 | 123.168.104.229 |
| 231 | 123.168.104.230 |
| 232 | 123.168.104.231 |
| 233 | 123.168.104.232 |
| 234 | 123.168.104.233 |
| 235 | 123.168.104.234 |
| 236 | 123.168.104.235 |
| 237 | 123.168.104.236 |
| 238 | 123.168.104.237 |
| 239 | 123.168.104.238 |
| 240 | 123.168.104.239 |
| 241 | 123.168.104.240 |
| 242 | 123.168.104.241 |
| 243 | 123.168.104.242 |
| 244 | 123.168.104.243 |
| 245 | 123.168.104.244 |
| 246 | 123.168.104.245 |
| 247 | 123.168.104.246 |
| 248 | 123.168.104.247 |
| 249 | 123.168.104.248 |
| 250 | 123.168.104.249 |
| 251 | 123.168.104.250 |
| 252 | 123.168.104.251 |
| 253 | 123.168.104.252 |
| 254 | 123.168.104.253 |
| 255 | 123.168.104.254 |
| 256 | 123.168.104.255 |
| 257 | 123.168.105.0 |
| 258 | 123.168.105.1 |
| 259 | 123.168.105.2 |
| 260 | 123.168.105.3 |
| 261 | 123.168.105.4 |
| 262 | 123.168.105.5 |
| 263 | 123.168.105.6 |
| 264 | 123.168.105.7 |
| 265 | 123.168.105.8 |
| 266 | 123.168.105.9 |
| 267 | 123.168.105.10 |
| 268 | 123.168.105.11 |
| 269 | 123.168.105.12 |
| 270 | 123.168.105.13 |
| 271 | 123.168.105.14 |
| 272 | 123.168.105.15 |
| 273 | 123.168.105.16 |
| 274 | 123.168.105.17 |
| 275 | 123.168.105.18 |
| 276 | 123.168.105.19 |
| 277 | 123.168.105.20 |
| 278 | 123.168.105.21 |
| 279 | 123.168.105.22 |
| 280 | 123.168.105.23 |
| 281 | 123.168.105.24 |
| 282 | 123.168.105.25 |
| 283 | 123.168.105.26 |
| 284 | 123.168.105.27 |
| 285 | 123.168.105.28 |
| 286 | 123.168.105.29 |
| 287 | 123.168.105.30 |
| 288 | 123.168.105.31 |
| 289 | 123.168.105.32 |
| 290 | 123.168.105.33 |
| 291 | 123.168.105.34 |
| 292 | 123.168.105.35 |
| 293 | 123.168.105.36 |
| 294 | 123.168.105.37 |
| 295 | 123.168.105.38 |
| 296 | 123.168.105.39 |
| 297 | 123.168.105.40 |
| 298 | 123.168.105.41 |
| 299 | 123.168.105.42 |
| 300 | 123.168.105.43 |
| 301 | 123.168.105.44 |
| 302 | 123.168.105.45 |
| 303 | 123.168.105.46 |
| 304 | 123.168.105.47 |
| 305 | 123.168.105.48 |
| 306 | 123.168.105.49 |
| 307 | 123.168.105.50 |
| 308 | 123.168.105.51 |
| 309 | 123.168.105.52 |
| 310 | 123.168.105.53 |
| 311 | 123.168.105.54 |
| 312 | 123.168.105.55 |
| 313 | 123.168.105.56 |
| 314 | 123.168.105.57 |
| 315 | 123.168.105.58 |
| 316 | 123.168.105.59 |
| 317 | 123.168.105.60 |
| 318 | 123.168.105.61 |
| 319 | 123.168.105.62 |
| 320 | 123.168.105.63 |
| 321 | 123.168.105.64 |
| 322 | 123.168.105.65 |
| 323 | 123.168.105.66 |
| 324 | 123.168.105.67 |
| 325 | 123.168.105.68 |
| 326 | 123.168.105.69 |
| 327 | 123.168.105.70 |
| 328 | 123.168.105.71 |
| 329 | 123.168.105.72 |
| 330 | 123.168.105.73 |
| 331 | 123.168.105.74 |
| 332 | 123.168.105.75 |
| 333 | 123.168.105.76 |
| 334 | 123.168.105.77 |
| 335 | 123.168.105.78 |
| 336 | 123.168.105.79 |
| 337 | 123.168.105.80 |
| 338 | 123.168.105.81 |
| 339 | 123.168.105.82 |
| 340 | 123.168.105.83 |
| 341 | 123.168.105.84 |
| 342 | 123.168.105.85 |
| 343 | 123.168.105.86 |
| 344 | 123.168.105.87 |
| 345 | 123.168.105.88 |
| 346 | 123.168.105.89 |
| 347 | 123.168.105.90 |
| 348 | 123.168.105.91 |
| 349 | 123.168.105.92 |
| 350 | 123.168.105.93 |
| 351 | 123.168.105.94 |
| 352 | 123.168.105.95 |
| 353 | 123.168.105.96 |
| 354 | 123.168.105.97 |
| 355 | 123.168.105.98 |
| 356 | 123.168.105.99 |
| 357 | 123.168.105.100 |
| 358 | 123.168.105.101 |
| 359 | 123.168.105.102 |
| 360 | 123.168.105.103 |
| 361 | 123.168.105.104 |
| 362 | 123.168.105.105 |
| 363 | 123.168.105.106 |
| 364 | 123.168.105.107 |
| 365 | 123.168.105.108 |
| 366 | 123.168.105.109 |
| 367 | 123.168.105.110 |
| 368 | 123.168.105.111 |
| 369 | 123.168.105.112 |
| 370 | 123.168.105.113 |
| 371 | 123.168.105.114 |
| 372 | 123.168.105.115 |
| 373 | 123.168.105.116 |
| 374 | 123.168.105.117 |
| 375 | 123.168.105.118 |
| 376 | 123.168.105.119 |
| 377 | 123.168.105.120 |
| 378 | 123.168.105.121 |
| 379 | 123.168.105.122 |
| 380 | 123.168.105.123 |
| 381 | 123.168.105.124 |
| 382 | 123.168.105.125 |
| 383 | 123.168.105.126 |
| 384 | 123.168.105.127 |
| 385 | 123.168.105.128 |
| 386 | 123.168.105.129 |
| 387 | 123.168.105.130 |
| 388 | 123.168.105.131 |
| 389 | 123.168.105.132 |
| 390 | 123.168.105.133 |
| 391 | 123.168.105.134 |
| 392 | 123.168.105.135 |
| 393 | 123.168.105.136 |
| 394 | 123.168.105.137 |
| 395 | 123.168.105.138 |
| 396 | 123.168.105.139 |
| 397 | 123.168.105.140 |
| 398 | 123.168.105.141 |
| 399 | 123.168.105.142 |
| 400 | 123.168.105.143 |
| 401 | 123.168.105.144 |
| 402 | 123.168.105.145 |
| 403 | 123.168.105.146 |
| 404 | 123.168.105.147 |
| 405 | 123.168.105.148 |
| 406 | 123.168.105.149 |
| 407 | 123.168.105.150 |
| 408 | 123.168.105.151 |
| 409 | 123.168.105.152 |
| 410 | 123.168.105.153 |
| 411 | 123.168.105.154 |
| 412 | 123.168.105.155 |
| 413 | 123.168.105.156 |
| 414 | 123.168.105.157 |
| 415 | 123.168.105.158 |
| 416 | 123.168.105.159 |
| 417 | 123.168.105.160 |
| 418 | 123.168.105.161 |
| 419 | 123.168.105.162 |
| 420 | 123.168.105.163 |
| 421 | 123.168.105.164 |
| 422 | 123.168.105.165 |
| 423 | 123.168.105.166 |
| 424 | 123.168.105.167 |
| 425 | 123.168.105.168 |
| 426 | 123.168.105.169 |
| 427 | 123.168.105.170 |
| 428 | 123.168.105.171 |
| 429 | 123.168.105.172 |
| 430 | 123.168.105.173 |
| 431 | 123.168.105.174 |
| 432 | 123.168.105.175 |
| 433 | 123.168.105.176 |
| 434 | 123.168.105.177 |
| 435 | 123.168.105.178 |
| 436 | 123.168.105.179 |
| 437 | 123.168.105.180 |
| 438 | 123.168.105.181 |
| 439 | 123.168.105.182 |
| 440 | 123.168.105.183 |
| 441 | 123.168.105.184 |
| 442 | 123.168.105.185 |
| 443 | 123.168.105.186 |
| 444 | 123.168.105.187 |
| 445 | 123.168.105.188 |
| 446 | 123.168.105.189 |
| 447 | 123.168.105.190 |
| 448 | 123.168.105.191 |
| 449 | 123.168.105.192 |
| 450 | 123.168.105.193 |
| 451 | 123.168.105.194 |
| 452 | 123.168.105.195 |
| 453 | 123.168.105.196 |
| 454 | 123.168.105.197 |
| 455 | 123.168.105.198 |
| 456 | 123.168.105.199 |
| 457 | 123.168.105.200 |
| 458 | 123.168.105.201 |
| 459 | 123.168.105.202 |
| 460 | 123.168.105.203 |
| 461 | 123.168.105.204 |
| 462 | 123.168.105.205 |
| 463 | 123.168.105.206 |
| 464 | 123.168.105.207 |
| 465 | 123.168.105.208 |
| 466 | 123.168.105.209 |
| 467 | 123.168.105.210 |
| 468 | 123.168.105.211 |
| 469 | 123.168.105.212 |
| 470 | 123.168.105.213 |
| 471 | 123.168.105.214 |
| 472 | 123.168.105.215 |
| 473 | 123.168.105.216 |
| 474 | 123.168.105.217 |
| 475 | 123.168.105.218 |
| 476 | 123.168.105.219 |
| 477 | 123.168.105.220 |
| 478 | 123.168.105.221 |
| 479 | 123.168.105.222 |
| 480 | 123.168.105.223 |
| 481 | 123.168.105.224 |
| 482 | 123.168.105.225 |
| 483 | 123.168.105.226 |
| 484 | 123.168.105.227 |
| 485 | 123.168.105.228 |
| 486 | 123.168.105.229 |
| 487 | 123.168.105.230 |
| 488 | 123.168.105.231 |
| 489 | 123.168.105.232 |
| 490 | 123.168.105.233 |
| 491 | 123.168.105.234 |
| 492 | 123.168.105.235 |
| 493 | 123.168.105.236 |
| 494 | 123.168.105.237 |
| 495 | 123.168.105.238 |
| 496 | 123.168.105.239 |
| 497 | 123.168.105.240 |
| 498 | 123.168.105.241 |
| 499 | 123.168.105.242 |
| 500 | 123.168.105.243 |
| 501 | 123.168.105.244 |
| 502 | 123.168.105.245 |
| 503 | 123.168.105.246 |
| 504 | 123.168.105.247 |
| 505 | 123.168.105.248 |
| 506 | 123.168.105.249 |
| 507 | 123.168.105.250 |
| 508 | 123.168.105.251 |
| 509 | 123.168.105.252 |
| 510 | 123.168.105.253 |
| 511 | 123.168.105.254 |
| 512 | 123.168.105.255 |
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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