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 (51.123.132.0/23) 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 | 51.123.132.0/23 |
ネットワーク(CIDR) | 51.123.132.0/23 |
サブネット表記 | 51.123.132.0/255.255.254.0 |
短縮表記 | 51.123.132 |
IPアドレス範囲 | 51.123.132.0 - 51.123.133.255 |
IPアドレス総数 | 512 |
ネットワークIP | 51.123.132.0 |
ブロードキャストIP | 51.123.133.255 |
ホストアドレス範囲 | 51.123.132.1 - 51.123.133.254 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 | 51.123.132.0 |
2 | 51.123.132.1 |
3 | 51.123.132.2 |
4 | 51.123.132.3 |
5 | 51.123.132.4 |
6 | 51.123.132.5 |
7 | 51.123.132.6 |
8 | 51.123.132.7 |
9 | 51.123.132.8 |
10 | 51.123.132.9 |
11 | 51.123.132.10 |
12 | 51.123.132.11 |
13 | 51.123.132.12 |
14 | 51.123.132.13 |
15 | 51.123.132.14 |
16 | 51.123.132.15 |
17 | 51.123.132.16 |
18 | 51.123.132.17 |
19 | 51.123.132.18 |
20 | 51.123.132.19 |
21 | 51.123.132.20 |
22 | 51.123.132.21 |
23 | 51.123.132.22 |
24 | 51.123.132.23 |
25 | 51.123.132.24 |
26 | 51.123.132.25 |
27 | 51.123.132.26 |
28 | 51.123.132.27 |
29 | 51.123.132.28 |
30 | 51.123.132.29 |
31 | 51.123.132.30 |
32 | 51.123.132.31 |
33 | 51.123.132.32 |
34 | 51.123.132.33 |
35 | 51.123.132.34 |
36 | 51.123.132.35 |
37 | 51.123.132.36 |
38 | 51.123.132.37 |
39 | 51.123.132.38 |
40 | 51.123.132.39 |
41 | 51.123.132.40 |
42 | 51.123.132.41 |
43 | 51.123.132.42 |
44 | 51.123.132.43 |
45 | 51.123.132.44 |
46 | 51.123.132.45 |
47 | 51.123.132.46 |
48 | 51.123.132.47 |
49 | 51.123.132.48 |
50 | 51.123.132.49 |
51 | 51.123.132.50 |
52 | 51.123.132.51 |
53 | 51.123.132.52 |
54 | 51.123.132.53 |
55 | 51.123.132.54 |
56 | 51.123.132.55 |
57 | 51.123.132.56 |
58 | 51.123.132.57 |
59 | 51.123.132.58 |
60 | 51.123.132.59 |
61 | 51.123.132.60 |
62 | 51.123.132.61 |
63 | 51.123.132.62 |
64 | 51.123.132.63 |
65 | 51.123.132.64 |
66 | 51.123.132.65 |
67 | 51.123.132.66 |
68 | 51.123.132.67 |
69 | 51.123.132.68 |
70 | 51.123.132.69 |
71 | 51.123.132.70 |
72 | 51.123.132.71 |
73 | 51.123.132.72 |
74 | 51.123.132.73 |
75 | 51.123.132.74 |
76 | 51.123.132.75 |
77 | 51.123.132.76 |
78 | 51.123.132.77 |
79 | 51.123.132.78 |
80 | 51.123.132.79 |
81 | 51.123.132.80 |
82 | 51.123.132.81 |
83 | 51.123.132.82 |
84 | 51.123.132.83 |
85 | 51.123.132.84 |
86 | 51.123.132.85 |
87 | 51.123.132.86 |
88 | 51.123.132.87 |
89 | 51.123.132.88 |
90 | 51.123.132.89 |
91 | 51.123.132.90 |
92 | 51.123.132.91 |
93 | 51.123.132.92 |
94 | 51.123.132.93 |
95 | 51.123.132.94 |
96 | 51.123.132.95 |
97 | 51.123.132.96 |
98 | 51.123.132.97 |
99 | 51.123.132.98 |
100 | 51.123.132.99 |
101 | 51.123.132.100 |
102 | 51.123.132.101 |
103 | 51.123.132.102 |
104 | 51.123.132.103 |
105 | 51.123.132.104 |
106 | 51.123.132.105 |
107 | 51.123.132.106 |
108 | 51.123.132.107 |
109 | 51.123.132.108 |
110 | 51.123.132.109 |
111 | 51.123.132.110 |
112 | 51.123.132.111 |
113 | 51.123.132.112 |
114 | 51.123.132.113 |
115 | 51.123.132.114 |
116 | 51.123.132.115 |
117 | 51.123.132.116 |
118 | 51.123.132.117 |
119 | 51.123.132.118 |
120 | 51.123.132.119 |
121 | 51.123.132.120 |
122 | 51.123.132.121 |
123 | 51.123.132.122 |
124 | 51.123.132.123 |
125 | 51.123.132.124 |
126 | 51.123.132.125 |
127 | 51.123.132.126 |
128 | 51.123.132.127 |
129 | 51.123.132.128 |
130 | 51.123.132.129 |
131 | 51.123.132.130 |
132 | 51.123.132.131 |
133 | 51.123.132.132 |
134 | 51.123.132.133 |
135 | 51.123.132.134 |
136 | 51.123.132.135 |
137 | 51.123.132.136 |
138 | 51.123.132.137 |
139 | 51.123.132.138 |
140 | 51.123.132.139 |
141 | 51.123.132.140 |
142 | 51.123.132.141 |
143 | 51.123.132.142 |
144 | 51.123.132.143 |
145 | 51.123.132.144 |
146 | 51.123.132.145 |
147 | 51.123.132.146 |
148 | 51.123.132.147 |
149 | 51.123.132.148 |
150 | 51.123.132.149 |
151 | 51.123.132.150 |
152 | 51.123.132.151 |
153 | 51.123.132.152 |
154 | 51.123.132.153 |
155 | 51.123.132.154 |
156 | 51.123.132.155 |
157 | 51.123.132.156 |
158 | 51.123.132.157 |
159 | 51.123.132.158 |
160 | 51.123.132.159 |
161 | 51.123.132.160 |
162 | 51.123.132.161 |
163 | 51.123.132.162 |
164 | 51.123.132.163 |
165 | 51.123.132.164 |
166 | 51.123.132.165 |
167 | 51.123.132.166 |
168 | 51.123.132.167 |
169 | 51.123.132.168 |
170 | 51.123.132.169 |
171 | 51.123.132.170 |
172 | 51.123.132.171 |
173 | 51.123.132.172 |
174 | 51.123.132.173 |
175 | 51.123.132.174 |
176 | 51.123.132.175 |
177 | 51.123.132.176 |
178 | 51.123.132.177 |
179 | 51.123.132.178 |
180 | 51.123.132.179 |
181 | 51.123.132.180 |
182 | 51.123.132.181 |
183 | 51.123.132.182 |
184 | 51.123.132.183 |
185 | 51.123.132.184 |
186 | 51.123.132.185 |
187 | 51.123.132.186 |
188 | 51.123.132.187 |
189 | 51.123.132.188 |
190 | 51.123.132.189 |
191 | 51.123.132.190 |
192 | 51.123.132.191 |
193 | 51.123.132.192 |
194 | 51.123.132.193 |
195 | 51.123.132.194 |
196 | 51.123.132.195 |
197 | 51.123.132.196 |
198 | 51.123.132.197 |
199 | 51.123.132.198 |
200 | 51.123.132.199 |
201 | 51.123.132.200 |
202 | 51.123.132.201 |
203 | 51.123.132.202 |
204 | 51.123.132.203 |
205 | 51.123.132.204 |
206 | 51.123.132.205 |
207 | 51.123.132.206 |
208 | 51.123.132.207 |
209 | 51.123.132.208 |
210 | 51.123.132.209 |
211 | 51.123.132.210 |
212 | 51.123.132.211 |
213 | 51.123.132.212 |
214 | 51.123.132.213 |
215 | 51.123.132.214 |
216 | 51.123.132.215 |
217 | 51.123.132.216 |
218 | 51.123.132.217 |
219 | 51.123.132.218 |
220 | 51.123.132.219 |
221 | 51.123.132.220 |
222 | 51.123.132.221 |
223 | 51.123.132.222 |
224 | 51.123.132.223 |
225 | 51.123.132.224 |
226 | 51.123.132.225 |
227 | 51.123.132.226 |
228 | 51.123.132.227 |
229 | 51.123.132.228 |
230 | 51.123.132.229 |
231 | 51.123.132.230 |
232 | 51.123.132.231 |
233 | 51.123.132.232 |
234 | 51.123.132.233 |
235 | 51.123.132.234 |
236 | 51.123.132.235 |
237 | 51.123.132.236 |
238 | 51.123.132.237 |
239 | 51.123.132.238 |
240 | 51.123.132.239 |
241 | 51.123.132.240 |
242 | 51.123.132.241 |
243 | 51.123.132.242 |
244 | 51.123.132.243 |
245 | 51.123.132.244 |
246 | 51.123.132.245 |
247 | 51.123.132.246 |
248 | 51.123.132.247 |
249 | 51.123.132.248 |
250 | 51.123.132.249 |
251 | 51.123.132.250 |
252 | 51.123.132.251 |
253 | 51.123.132.252 |
254 | 51.123.132.253 |
255 | 51.123.132.254 |
256 | 51.123.132.255 |
257 | 51.123.133.0 |
258 | 51.123.133.1 |
259 | 51.123.133.2 |
260 | 51.123.133.3 |
261 | 51.123.133.4 |
262 | 51.123.133.5 |
263 | 51.123.133.6 |
264 | 51.123.133.7 |
265 | 51.123.133.8 |
266 | 51.123.133.9 |
267 | 51.123.133.10 |
268 | 51.123.133.11 |
269 | 51.123.133.12 |
270 | 51.123.133.13 |
271 | 51.123.133.14 |
272 | 51.123.133.15 |
273 | 51.123.133.16 |
274 | 51.123.133.17 |
275 | 51.123.133.18 |
276 | 51.123.133.19 |
277 | 51.123.133.20 |
278 | 51.123.133.21 |
279 | 51.123.133.22 |
280 | 51.123.133.23 |
281 | 51.123.133.24 |
282 | 51.123.133.25 |
283 | 51.123.133.26 |
284 | 51.123.133.27 |
285 | 51.123.133.28 |
286 | 51.123.133.29 |
287 | 51.123.133.30 |
288 | 51.123.133.31 |
289 | 51.123.133.32 |
290 | 51.123.133.33 |
291 | 51.123.133.34 |
292 | 51.123.133.35 |
293 | 51.123.133.36 |
294 | 51.123.133.37 |
295 | 51.123.133.38 |
296 | 51.123.133.39 |
297 | 51.123.133.40 |
298 | 51.123.133.41 |
299 | 51.123.133.42 |
300 | 51.123.133.43 |
301 | 51.123.133.44 |
302 | 51.123.133.45 |
303 | 51.123.133.46 |
304 | 51.123.133.47 |
305 | 51.123.133.48 |
306 | 51.123.133.49 |
307 | 51.123.133.50 |
308 | 51.123.133.51 |
309 | 51.123.133.52 |
310 | 51.123.133.53 |
311 | 51.123.133.54 |
312 | 51.123.133.55 |
313 | 51.123.133.56 |
314 | 51.123.133.57 |
315 | 51.123.133.58 |
316 | 51.123.133.59 |
317 | 51.123.133.60 |
318 | 51.123.133.61 |
319 | 51.123.133.62 |
320 | 51.123.133.63 |
321 | 51.123.133.64 |
322 | 51.123.133.65 |
323 | 51.123.133.66 |
324 | 51.123.133.67 |
325 | 51.123.133.68 |
326 | 51.123.133.69 |
327 | 51.123.133.70 |
328 | 51.123.133.71 |
329 | 51.123.133.72 |
330 | 51.123.133.73 |
331 | 51.123.133.74 |
332 | 51.123.133.75 |
333 | 51.123.133.76 |
334 | 51.123.133.77 |
335 | 51.123.133.78 |
336 | 51.123.133.79 |
337 | 51.123.133.80 |
338 | 51.123.133.81 |
339 | 51.123.133.82 |
340 | 51.123.133.83 |
341 | 51.123.133.84 |
342 | 51.123.133.85 |
343 | 51.123.133.86 |
344 | 51.123.133.87 |
345 | 51.123.133.88 |
346 | 51.123.133.89 |
347 | 51.123.133.90 |
348 | 51.123.133.91 |
349 | 51.123.133.92 |
350 | 51.123.133.93 |
351 | 51.123.133.94 |
352 | 51.123.133.95 |
353 | 51.123.133.96 |
354 | 51.123.133.97 |
355 | 51.123.133.98 |
356 | 51.123.133.99 |
357 | 51.123.133.100 |
358 | 51.123.133.101 |
359 | 51.123.133.102 |
360 | 51.123.133.103 |
361 | 51.123.133.104 |
362 | 51.123.133.105 |
363 | 51.123.133.106 |
364 | 51.123.133.107 |
365 | 51.123.133.108 |
366 | 51.123.133.109 |
367 | 51.123.133.110 |
368 | 51.123.133.111 |
369 | 51.123.133.112 |
370 | 51.123.133.113 |
371 | 51.123.133.114 |
372 | 51.123.133.115 |
373 | 51.123.133.116 |
374 | 51.123.133.117 |
375 | 51.123.133.118 |
376 | 51.123.133.119 |
377 | 51.123.133.120 |
378 | 51.123.133.121 |
379 | 51.123.133.122 |
380 | 51.123.133.123 |
381 | 51.123.133.124 |
382 | 51.123.133.125 |
383 | 51.123.133.126 |
384 | 51.123.133.127 |
385 | 51.123.133.128 |
386 | 51.123.133.129 |
387 | 51.123.133.130 |
388 | 51.123.133.131 |
389 | 51.123.133.132 |
390 | 51.123.133.133 |
391 | 51.123.133.134 |
392 | 51.123.133.135 |
393 | 51.123.133.136 |
394 | 51.123.133.137 |
395 | 51.123.133.138 |
396 | 51.123.133.139 |
397 | 51.123.133.140 |
398 | 51.123.133.141 |
399 | 51.123.133.142 |
400 | 51.123.133.143 |
401 | 51.123.133.144 |
402 | 51.123.133.145 |
403 | 51.123.133.146 |
404 | 51.123.133.147 |
405 | 51.123.133.148 |
406 | 51.123.133.149 |
407 | 51.123.133.150 |
408 | 51.123.133.151 |
409 | 51.123.133.152 |
410 | 51.123.133.153 |
411 | 51.123.133.154 |
412 | 51.123.133.155 |
413 | 51.123.133.156 |
414 | 51.123.133.157 |
415 | 51.123.133.158 |
416 | 51.123.133.159 |
417 | 51.123.133.160 |
418 | 51.123.133.161 |
419 | 51.123.133.162 |
420 | 51.123.133.163 |
421 | 51.123.133.164 |
422 | 51.123.133.165 |
423 | 51.123.133.166 |
424 | 51.123.133.167 |
425 | 51.123.133.168 |
426 | 51.123.133.169 |
427 | 51.123.133.170 |
428 | 51.123.133.171 |
429 | 51.123.133.172 |
430 | 51.123.133.173 |
431 | 51.123.133.174 |
432 | 51.123.133.175 |
433 | 51.123.133.176 |
434 | 51.123.133.177 |
435 | 51.123.133.178 |
436 | 51.123.133.179 |
437 | 51.123.133.180 |
438 | 51.123.133.181 |
439 | 51.123.133.182 |
440 | 51.123.133.183 |
441 | 51.123.133.184 |
442 | 51.123.133.185 |
443 | 51.123.133.186 |
444 | 51.123.133.187 |
445 | 51.123.133.188 |
446 | 51.123.133.189 |
447 | 51.123.133.190 |
448 | 51.123.133.191 |
449 | 51.123.133.192 |
450 | 51.123.133.193 |
451 | 51.123.133.194 |
452 | 51.123.133.195 |
453 | 51.123.133.196 |
454 | 51.123.133.197 |
455 | 51.123.133.198 |
456 | 51.123.133.199 |
457 | 51.123.133.200 |
458 | 51.123.133.201 |
459 | 51.123.133.202 |
460 | 51.123.133.203 |
461 | 51.123.133.204 |
462 | 51.123.133.205 |
463 | 51.123.133.206 |
464 | 51.123.133.207 |
465 | 51.123.133.208 |
466 | 51.123.133.209 |
467 | 51.123.133.210 |
468 | 51.123.133.211 |
469 | 51.123.133.212 |
470 | 51.123.133.213 |
471 | 51.123.133.214 |
472 | 51.123.133.215 |
473 | 51.123.133.216 |
474 | 51.123.133.217 |
475 | 51.123.133.218 |
476 | 51.123.133.219 |
477 | 51.123.133.220 |
478 | 51.123.133.221 |
479 | 51.123.133.222 |
480 | 51.123.133.223 |
481 | 51.123.133.224 |
482 | 51.123.133.225 |
483 | 51.123.133.226 |
484 | 51.123.133.227 |
485 | 51.123.133.228 |
486 | 51.123.133.229 |
487 | 51.123.133.230 |
488 | 51.123.133.231 |
489 | 51.123.133.232 |
490 | 51.123.133.233 |
491 | 51.123.133.234 |
492 | 51.123.133.235 |
493 | 51.123.133.236 |
494 | 51.123.133.237 |
495 | 51.123.133.238 |
496 | 51.123.133.239 |
497 | 51.123.133.240 |
498 | 51.123.133.241 |
499 | 51.123.133.242 |
500 | 51.123.133.243 |
501 | 51.123.133.244 |
502 | 51.123.133.245 |
503 | 51.123.133.246 |
504 | 51.123.133.247 |
505 | 51.123.133.248 |
506 | 51.123.133.249 |
507 | 51.123.133.250 |
508 | 51.123.133.251 |
509 | 51.123.133.252 |
510 | 51.123.133.253 |
511 | 51.123.133.254 |
512 | 51.123.133.255 |
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