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 (66.100.78.0/23) 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 | 66.100.78.0/23 |
ネットワーク(CIDR) | 66.100.78.0/23 |
サブネット表記 | 66.100.78.0/255.255.254.0 |
短縮表記 | 66.100.78 |
IPアドレス範囲 | 66.100.78.0 - 66.100.79.255 |
IPアドレス総数 | 512 |
ネットワークIP | 66.100.78.0 |
ブロードキャストIP | 66.100.79.255 |
ホストアドレス範囲 | 66.100.78.1 - 66.100.79.254 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 | 66.100.78.0 |
2 | 66.100.78.1 |
3 | 66.100.78.2 |
4 | 66.100.78.3 |
5 | 66.100.78.4 |
6 | 66.100.78.5 |
7 | 66.100.78.6 |
8 | 66.100.78.7 |
9 | 66.100.78.8 |
10 | 66.100.78.9 |
11 | 66.100.78.10 |
12 | 66.100.78.11 |
13 | 66.100.78.12 |
14 | 66.100.78.13 |
15 | 66.100.78.14 |
16 | 66.100.78.15 |
17 | 66.100.78.16 |
18 | 66.100.78.17 |
19 | 66.100.78.18 |
20 | 66.100.78.19 |
21 | 66.100.78.20 |
22 | 66.100.78.21 |
23 | 66.100.78.22 |
24 | 66.100.78.23 |
25 | 66.100.78.24 |
26 | 66.100.78.25 |
27 | 66.100.78.26 |
28 | 66.100.78.27 |
29 | 66.100.78.28 |
30 | 66.100.78.29 |
31 | 66.100.78.30 |
32 | 66.100.78.31 |
33 | 66.100.78.32 |
34 | 66.100.78.33 |
35 | 66.100.78.34 |
36 | 66.100.78.35 |
37 | 66.100.78.36 |
38 | 66.100.78.37 |
39 | 66.100.78.38 |
40 | 66.100.78.39 |
41 | 66.100.78.40 |
42 | 66.100.78.41 |
43 | 66.100.78.42 |
44 | 66.100.78.43 |
45 | 66.100.78.44 |
46 | 66.100.78.45 |
47 | 66.100.78.46 |
48 | 66.100.78.47 |
49 | 66.100.78.48 |
50 | 66.100.78.49 |
51 | 66.100.78.50 |
52 | 66.100.78.51 |
53 | 66.100.78.52 |
54 | 66.100.78.53 |
55 | 66.100.78.54 |
56 | 66.100.78.55 |
57 | 66.100.78.56 |
58 | 66.100.78.57 |
59 | 66.100.78.58 |
60 | 66.100.78.59 |
61 | 66.100.78.60 |
62 | 66.100.78.61 |
63 | 66.100.78.62 |
64 | 66.100.78.63 |
65 | 66.100.78.64 |
66 | 66.100.78.65 |
67 | 66.100.78.66 |
68 | 66.100.78.67 |
69 | 66.100.78.68 |
70 | 66.100.78.69 |
71 | 66.100.78.70 |
72 | 66.100.78.71 |
73 | 66.100.78.72 |
74 | 66.100.78.73 |
75 | 66.100.78.74 |
76 | 66.100.78.75 |
77 | 66.100.78.76 |
78 | 66.100.78.77 |
79 | 66.100.78.78 |
80 | 66.100.78.79 |
81 | 66.100.78.80 |
82 | 66.100.78.81 |
83 | 66.100.78.82 |
84 | 66.100.78.83 |
85 | 66.100.78.84 |
86 | 66.100.78.85 |
87 | 66.100.78.86 |
88 | 66.100.78.87 |
89 | 66.100.78.88 |
90 | 66.100.78.89 |
91 | 66.100.78.90 |
92 | 66.100.78.91 |
93 | 66.100.78.92 |
94 | 66.100.78.93 |
95 | 66.100.78.94 |
96 | 66.100.78.95 |
97 | 66.100.78.96 |
98 | 66.100.78.97 |
99 | 66.100.78.98 |
100 | 66.100.78.99 |
101 | 66.100.78.100 |
102 | 66.100.78.101 |
103 | 66.100.78.102 |
104 | 66.100.78.103 |
105 | 66.100.78.104 |
106 | 66.100.78.105 |
107 | 66.100.78.106 |
108 | 66.100.78.107 |
109 | 66.100.78.108 |
110 | 66.100.78.109 |
111 | 66.100.78.110 |
112 | 66.100.78.111 |
113 | 66.100.78.112 |
114 | 66.100.78.113 |
115 | 66.100.78.114 |
116 | 66.100.78.115 |
117 | 66.100.78.116 |
118 | 66.100.78.117 |
119 | 66.100.78.118 |
120 | 66.100.78.119 |
121 | 66.100.78.120 |
122 | 66.100.78.121 |
123 | 66.100.78.122 |
124 | 66.100.78.123 |
125 | 66.100.78.124 |
126 | 66.100.78.125 |
127 | 66.100.78.126 |
128 | 66.100.78.127 |
129 | 66.100.78.128 |
130 | 66.100.78.129 |
131 | 66.100.78.130 |
132 | 66.100.78.131 |
133 | 66.100.78.132 |
134 | 66.100.78.133 |
135 | 66.100.78.134 |
136 | 66.100.78.135 |
137 | 66.100.78.136 |
138 | 66.100.78.137 |
139 | 66.100.78.138 |
140 | 66.100.78.139 |
141 | 66.100.78.140 |
142 | 66.100.78.141 |
143 | 66.100.78.142 |
144 | 66.100.78.143 |
145 | 66.100.78.144 |
146 | 66.100.78.145 |
147 | 66.100.78.146 |
148 | 66.100.78.147 |
149 | 66.100.78.148 |
150 | 66.100.78.149 |
151 | 66.100.78.150 |
152 | 66.100.78.151 |
153 | 66.100.78.152 |
154 | 66.100.78.153 |
155 | 66.100.78.154 |
156 | 66.100.78.155 |
157 | 66.100.78.156 |
158 | 66.100.78.157 |
159 | 66.100.78.158 |
160 | 66.100.78.159 |
161 | 66.100.78.160 |
162 | 66.100.78.161 |
163 | 66.100.78.162 |
164 | 66.100.78.163 |
165 | 66.100.78.164 |
166 | 66.100.78.165 |
167 | 66.100.78.166 |
168 | 66.100.78.167 |
169 | 66.100.78.168 |
170 | 66.100.78.169 |
171 | 66.100.78.170 |
172 | 66.100.78.171 |
173 | 66.100.78.172 |
174 | 66.100.78.173 |
175 | 66.100.78.174 |
176 | 66.100.78.175 |
177 | 66.100.78.176 |
178 | 66.100.78.177 |
179 | 66.100.78.178 |
180 | 66.100.78.179 |
181 | 66.100.78.180 |
182 | 66.100.78.181 |
183 | 66.100.78.182 |
184 | 66.100.78.183 |
185 | 66.100.78.184 |
186 | 66.100.78.185 |
187 | 66.100.78.186 |
188 | 66.100.78.187 |
189 | 66.100.78.188 |
190 | 66.100.78.189 |
191 | 66.100.78.190 |
192 | 66.100.78.191 |
193 | 66.100.78.192 |
194 | 66.100.78.193 |
195 | 66.100.78.194 |
196 | 66.100.78.195 |
197 | 66.100.78.196 |
198 | 66.100.78.197 |
199 | 66.100.78.198 |
200 | 66.100.78.199 |
201 | 66.100.78.200 |
202 | 66.100.78.201 |
203 | 66.100.78.202 |
204 | 66.100.78.203 |
205 | 66.100.78.204 |
206 | 66.100.78.205 |
207 | 66.100.78.206 |
208 | 66.100.78.207 |
209 | 66.100.78.208 |
210 | 66.100.78.209 |
211 | 66.100.78.210 |
212 | 66.100.78.211 |
213 | 66.100.78.212 |
214 | 66.100.78.213 |
215 | 66.100.78.214 |
216 | 66.100.78.215 |
217 | 66.100.78.216 |
218 | 66.100.78.217 |
219 | 66.100.78.218 |
220 | 66.100.78.219 |
221 | 66.100.78.220 |
222 | 66.100.78.221 |
223 | 66.100.78.222 |
224 | 66.100.78.223 |
225 | 66.100.78.224 |
226 | 66.100.78.225 |
227 | 66.100.78.226 |
228 | 66.100.78.227 |
229 | 66.100.78.228 |
230 | 66.100.78.229 |
231 | 66.100.78.230 |
232 | 66.100.78.231 |
233 | 66.100.78.232 |
234 | 66.100.78.233 |
235 | 66.100.78.234 |
236 | 66.100.78.235 |
237 | 66.100.78.236 |
238 | 66.100.78.237 |
239 | 66.100.78.238 |
240 | 66.100.78.239 |
241 | 66.100.78.240 |
242 | 66.100.78.241 |
243 | 66.100.78.242 |
244 | 66.100.78.243 |
245 | 66.100.78.244 |
246 | 66.100.78.245 |
247 | 66.100.78.246 |
248 | 66.100.78.247 |
249 | 66.100.78.248 |
250 | 66.100.78.249 |
251 | 66.100.78.250 |
252 | 66.100.78.251 |
253 | 66.100.78.252 |
254 | 66.100.78.253 |
255 | 66.100.78.254 |
256 | 66.100.78.255 |
257 | 66.100.79.0 |
258 | 66.100.79.1 |
259 | 66.100.79.2 |
260 | 66.100.79.3 |
261 | 66.100.79.4 |
262 | 66.100.79.5 |
263 | 66.100.79.6 |
264 | 66.100.79.7 |
265 | 66.100.79.8 |
266 | 66.100.79.9 |
267 | 66.100.79.10 |
268 | 66.100.79.11 |
269 | 66.100.79.12 |
270 | 66.100.79.13 |
271 | 66.100.79.14 |
272 | 66.100.79.15 |
273 | 66.100.79.16 |
274 | 66.100.79.17 |
275 | 66.100.79.18 |
276 | 66.100.79.19 |
277 | 66.100.79.20 |
278 | 66.100.79.21 |
279 | 66.100.79.22 |
280 | 66.100.79.23 |
281 | 66.100.79.24 |
282 | 66.100.79.25 |
283 | 66.100.79.26 |
284 | 66.100.79.27 |
285 | 66.100.79.28 |
286 | 66.100.79.29 |
287 | 66.100.79.30 |
288 | 66.100.79.31 |
289 | 66.100.79.32 |
290 | 66.100.79.33 |
291 | 66.100.79.34 |
292 | 66.100.79.35 |
293 | 66.100.79.36 |
294 | 66.100.79.37 |
295 | 66.100.79.38 |
296 | 66.100.79.39 |
297 | 66.100.79.40 |
298 | 66.100.79.41 |
299 | 66.100.79.42 |
300 | 66.100.79.43 |
301 | 66.100.79.44 |
302 | 66.100.79.45 |
303 | 66.100.79.46 |
304 | 66.100.79.47 |
305 | 66.100.79.48 |
306 | 66.100.79.49 |
307 | 66.100.79.50 |
308 | 66.100.79.51 |
309 | 66.100.79.52 |
310 | 66.100.79.53 |
311 | 66.100.79.54 |
312 | 66.100.79.55 |
313 | 66.100.79.56 |
314 | 66.100.79.57 |
315 | 66.100.79.58 |
316 | 66.100.79.59 |
317 | 66.100.79.60 |
318 | 66.100.79.61 |
319 | 66.100.79.62 |
320 | 66.100.79.63 |
321 | 66.100.79.64 |
322 | 66.100.79.65 |
323 | 66.100.79.66 |
324 | 66.100.79.67 |
325 | 66.100.79.68 |
326 | 66.100.79.69 |
327 | 66.100.79.70 |
328 | 66.100.79.71 |
329 | 66.100.79.72 |
330 | 66.100.79.73 |
331 | 66.100.79.74 |
332 | 66.100.79.75 |
333 | 66.100.79.76 |
334 | 66.100.79.77 |
335 | 66.100.79.78 |
336 | 66.100.79.79 |
337 | 66.100.79.80 |
338 | 66.100.79.81 |
339 | 66.100.79.82 |
340 | 66.100.79.83 |
341 | 66.100.79.84 |
342 | 66.100.79.85 |
343 | 66.100.79.86 |
344 | 66.100.79.87 |
345 | 66.100.79.88 |
346 | 66.100.79.89 |
347 | 66.100.79.90 |
348 | 66.100.79.91 |
349 | 66.100.79.92 |
350 | 66.100.79.93 |
351 | 66.100.79.94 |
352 | 66.100.79.95 |
353 | 66.100.79.96 |
354 | 66.100.79.97 |
355 | 66.100.79.98 |
356 | 66.100.79.99 |
357 | 66.100.79.100 |
358 | 66.100.79.101 |
359 | 66.100.79.102 |
360 | 66.100.79.103 |
361 | 66.100.79.104 |
362 | 66.100.79.105 |
363 | 66.100.79.106 |
364 | 66.100.79.107 |
365 | 66.100.79.108 |
366 | 66.100.79.109 |
367 | 66.100.79.110 |
368 | 66.100.79.111 |
369 | 66.100.79.112 |
370 | 66.100.79.113 |
371 | 66.100.79.114 |
372 | 66.100.79.115 |
373 | 66.100.79.116 |
374 | 66.100.79.117 |
375 | 66.100.79.118 |
376 | 66.100.79.119 |
377 | 66.100.79.120 |
378 | 66.100.79.121 |
379 | 66.100.79.122 |
380 | 66.100.79.123 |
381 | 66.100.79.124 |
382 | 66.100.79.125 |
383 | 66.100.79.126 |
384 | 66.100.79.127 |
385 | 66.100.79.128 |
386 | 66.100.79.129 |
387 | 66.100.79.130 |
388 | 66.100.79.131 |
389 | 66.100.79.132 |
390 | 66.100.79.133 |
391 | 66.100.79.134 |
392 | 66.100.79.135 |
393 | 66.100.79.136 |
394 | 66.100.79.137 |
395 | 66.100.79.138 |
396 | 66.100.79.139 |
397 | 66.100.79.140 |
398 | 66.100.79.141 |
399 | 66.100.79.142 |
400 | 66.100.79.143 |
401 | 66.100.79.144 |
402 | 66.100.79.145 |
403 | 66.100.79.146 |
404 | 66.100.79.147 |
405 | 66.100.79.148 |
406 | 66.100.79.149 |
407 | 66.100.79.150 |
408 | 66.100.79.151 |
409 | 66.100.79.152 |
410 | 66.100.79.153 |
411 | 66.100.79.154 |
412 | 66.100.79.155 |
413 | 66.100.79.156 |
414 | 66.100.79.157 |
415 | 66.100.79.158 |
416 | 66.100.79.159 |
417 | 66.100.79.160 |
418 | 66.100.79.161 |
419 | 66.100.79.162 |
420 | 66.100.79.163 |
421 | 66.100.79.164 |
422 | 66.100.79.165 |
423 | 66.100.79.166 |
424 | 66.100.79.167 |
425 | 66.100.79.168 |
426 | 66.100.79.169 |
427 | 66.100.79.170 |
428 | 66.100.79.171 |
429 | 66.100.79.172 |
430 | 66.100.79.173 |
431 | 66.100.79.174 |
432 | 66.100.79.175 |
433 | 66.100.79.176 |
434 | 66.100.79.177 |
435 | 66.100.79.178 |
436 | 66.100.79.179 |
437 | 66.100.79.180 |
438 | 66.100.79.181 |
439 | 66.100.79.182 |
440 | 66.100.79.183 |
441 | 66.100.79.184 |
442 | 66.100.79.185 |
443 | 66.100.79.186 |
444 | 66.100.79.187 |
445 | 66.100.79.188 |
446 | 66.100.79.189 |
447 | 66.100.79.190 |
448 | 66.100.79.191 |
449 | 66.100.79.192 |
450 | 66.100.79.193 |
451 | 66.100.79.194 |
452 | 66.100.79.195 |
453 | 66.100.79.196 |
454 | 66.100.79.197 |
455 | 66.100.79.198 |
456 | 66.100.79.199 |
457 | 66.100.79.200 |
458 | 66.100.79.201 |
459 | 66.100.79.202 |
460 | 66.100.79.203 |
461 | 66.100.79.204 |
462 | 66.100.79.205 |
463 | 66.100.79.206 |
464 | 66.100.79.207 |
465 | 66.100.79.208 |
466 | 66.100.79.209 |
467 | 66.100.79.210 |
468 | 66.100.79.211 |
469 | 66.100.79.212 |
470 | 66.100.79.213 |
471 | 66.100.79.214 |
472 | 66.100.79.215 |
473 | 66.100.79.216 |
474 | 66.100.79.217 |
475 | 66.100.79.218 |
476 | 66.100.79.219 |
477 | 66.100.79.220 |
478 | 66.100.79.221 |
479 | 66.100.79.222 |
480 | 66.100.79.223 |
481 | 66.100.79.224 |
482 | 66.100.79.225 |
483 | 66.100.79.226 |
484 | 66.100.79.227 |
485 | 66.100.79.228 |
486 | 66.100.79.229 |
487 | 66.100.79.230 |
488 | 66.100.79.231 |
489 | 66.100.79.232 |
490 | 66.100.79.233 |
491 | 66.100.79.234 |
492 | 66.100.79.235 |
493 | 66.100.79.236 |
494 | 66.100.79.237 |
495 | 66.100.79.238 |
496 | 66.100.79.239 |
497 | 66.100.79.240 |
498 | 66.100.79.241 |
499 | 66.100.79.242 |
500 | 66.100.79.243 |
501 | 66.100.79.244 |
502 | 66.100.79.245 |
503 | 66.100.79.246 |
504 | 66.100.79.247 |
505 | 66.100.79.248 |
506 | 66.100.79.249 |
507 | 66.100.79.250 |
508 | 66.100.79.251 |
509 | 66.100.79.252 |
510 | 66.100.79.253 |
511 | 66.100.79.254 |
512 | 66.100.79.255 |
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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公開日:
最終更新日:2019/07/06