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 (172.155.52.0/23) 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 | 172.155.52.0/23 |
ネットワーク(CIDR) | 172.155.52.0/23 |
サブネット表記 | 172.155.52.0/255.255.254.0 |
短縮表記 | 172.155.52 |
IPアドレス範囲 | 172.155.52.0 - 172.155.53.255 |
IPアドレス総数 | 512 |
ネットワークIP | 172.155.52.0 |
ブロードキャストIP | 172.155.53.255 |
ホストアドレス範囲 | 172.155.52.1 - 172.155.53.254 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B |
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 | 172.155.52.0 |
2 | 172.155.52.1 |
3 | 172.155.52.2 |
4 | 172.155.52.3 |
5 | 172.155.52.4 |
6 | 172.155.52.5 |
7 | 172.155.52.6 |
8 | 172.155.52.7 |
9 | 172.155.52.8 |
10 | 172.155.52.9 |
11 | 172.155.52.10 |
12 | 172.155.52.11 |
13 | 172.155.52.12 |
14 | 172.155.52.13 |
15 | 172.155.52.14 |
16 | 172.155.52.15 |
17 | 172.155.52.16 |
18 | 172.155.52.17 |
19 | 172.155.52.18 |
20 | 172.155.52.19 |
21 | 172.155.52.20 |
22 | 172.155.52.21 |
23 | 172.155.52.22 |
24 | 172.155.52.23 |
25 | 172.155.52.24 |
26 | 172.155.52.25 |
27 | 172.155.52.26 |
28 | 172.155.52.27 |
29 | 172.155.52.28 |
30 | 172.155.52.29 |
31 | 172.155.52.30 |
32 | 172.155.52.31 |
33 | 172.155.52.32 |
34 | 172.155.52.33 |
35 | 172.155.52.34 |
36 | 172.155.52.35 |
37 | 172.155.52.36 |
38 | 172.155.52.37 |
39 | 172.155.52.38 |
40 | 172.155.52.39 |
41 | 172.155.52.40 |
42 | 172.155.52.41 |
43 | 172.155.52.42 |
44 | 172.155.52.43 |
45 | 172.155.52.44 |
46 | 172.155.52.45 |
47 | 172.155.52.46 |
48 | 172.155.52.47 |
49 | 172.155.52.48 |
50 | 172.155.52.49 |
51 | 172.155.52.50 |
52 | 172.155.52.51 |
53 | 172.155.52.52 |
54 | 172.155.52.53 |
55 | 172.155.52.54 |
56 | 172.155.52.55 |
57 | 172.155.52.56 |
58 | 172.155.52.57 |
59 | 172.155.52.58 |
60 | 172.155.52.59 |
61 | 172.155.52.60 |
62 | 172.155.52.61 |
63 | 172.155.52.62 |
64 | 172.155.52.63 |
65 | 172.155.52.64 |
66 | 172.155.52.65 |
67 | 172.155.52.66 |
68 | 172.155.52.67 |
69 | 172.155.52.68 |
70 | 172.155.52.69 |
71 | 172.155.52.70 |
72 | 172.155.52.71 |
73 | 172.155.52.72 |
74 | 172.155.52.73 |
75 | 172.155.52.74 |
76 | 172.155.52.75 |
77 | 172.155.52.76 |
78 | 172.155.52.77 |
79 | 172.155.52.78 |
80 | 172.155.52.79 |
81 | 172.155.52.80 |
82 | 172.155.52.81 |
83 | 172.155.52.82 |
84 | 172.155.52.83 |
85 | 172.155.52.84 |
86 | 172.155.52.85 |
87 | 172.155.52.86 |
88 | 172.155.52.87 |
89 | 172.155.52.88 |
90 | 172.155.52.89 |
91 | 172.155.52.90 |
92 | 172.155.52.91 |
93 | 172.155.52.92 |
94 | 172.155.52.93 |
95 | 172.155.52.94 |
96 | 172.155.52.95 |
97 | 172.155.52.96 |
98 | 172.155.52.97 |
99 | 172.155.52.98 |
100 | 172.155.52.99 |
101 | 172.155.52.100 |
102 | 172.155.52.101 |
103 | 172.155.52.102 |
104 | 172.155.52.103 |
105 | 172.155.52.104 |
106 | 172.155.52.105 |
107 | 172.155.52.106 |
108 | 172.155.52.107 |
109 | 172.155.52.108 |
110 | 172.155.52.109 |
111 | 172.155.52.110 |
112 | 172.155.52.111 |
113 | 172.155.52.112 |
114 | 172.155.52.113 |
115 | 172.155.52.114 |
116 | 172.155.52.115 |
117 | 172.155.52.116 |
118 | 172.155.52.117 |
119 | 172.155.52.118 |
120 | 172.155.52.119 |
121 | 172.155.52.120 |
122 | 172.155.52.121 |
123 | 172.155.52.122 |
124 | 172.155.52.123 |
125 | 172.155.52.124 |
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128 | 172.155.52.127 |
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133 | 172.155.52.132 |
134 | 172.155.52.133 |
135 | 172.155.52.134 |
136 | 172.155.52.135 |
137 | 172.155.52.136 |
138 | 172.155.52.137 |
139 | 172.155.52.138 |
140 | 172.155.52.139 |
141 | 172.155.52.140 |
142 | 172.155.52.141 |
143 | 172.155.52.142 |
144 | 172.155.52.143 |
145 | 172.155.52.144 |
146 | 172.155.52.145 |
147 | 172.155.52.146 |
148 | 172.155.52.147 |
149 | 172.155.52.148 |
150 | 172.155.52.149 |
151 | 172.155.52.150 |
152 | 172.155.52.151 |
153 | 172.155.52.152 |
154 | 172.155.52.153 |
155 | 172.155.52.154 |
156 | 172.155.52.155 |
157 | 172.155.52.156 |
158 | 172.155.52.157 |
159 | 172.155.52.158 |
160 | 172.155.52.159 |
161 | 172.155.52.160 |
162 | 172.155.52.161 |
163 | 172.155.52.162 |
164 | 172.155.52.163 |
165 | 172.155.52.164 |
166 | 172.155.52.165 |
167 | 172.155.52.166 |
168 | 172.155.52.167 |
169 | 172.155.52.168 |
170 | 172.155.52.169 |
171 | 172.155.52.170 |
172 | 172.155.52.171 |
173 | 172.155.52.172 |
174 | 172.155.52.173 |
175 | 172.155.52.174 |
176 | 172.155.52.175 |
177 | 172.155.52.176 |
178 | 172.155.52.177 |
179 | 172.155.52.178 |
180 | 172.155.52.179 |
181 | 172.155.52.180 |
182 | 172.155.52.181 |
183 | 172.155.52.182 |
184 | 172.155.52.183 |
185 | 172.155.52.184 |
186 | 172.155.52.185 |
187 | 172.155.52.186 |
188 | 172.155.52.187 |
189 | 172.155.52.188 |
190 | 172.155.52.189 |
191 | 172.155.52.190 |
192 | 172.155.52.191 |
193 | 172.155.52.192 |
194 | 172.155.52.193 |
195 | 172.155.52.194 |
196 | 172.155.52.195 |
197 | 172.155.52.196 |
198 | 172.155.52.197 |
199 | 172.155.52.198 |
200 | 172.155.52.199 |
201 | 172.155.52.200 |
202 | 172.155.52.201 |
203 | 172.155.52.202 |
204 | 172.155.52.203 |
205 | 172.155.52.204 |
206 | 172.155.52.205 |
207 | 172.155.52.206 |
208 | 172.155.52.207 |
209 | 172.155.52.208 |
210 | 172.155.52.209 |
211 | 172.155.52.210 |
212 | 172.155.52.211 |
213 | 172.155.52.212 |
214 | 172.155.52.213 |
215 | 172.155.52.214 |
216 | 172.155.52.215 |
217 | 172.155.52.216 |
218 | 172.155.52.217 |
219 | 172.155.52.218 |
220 | 172.155.52.219 |
221 | 172.155.52.220 |
222 | 172.155.52.221 |
223 | 172.155.52.222 |
224 | 172.155.52.223 |
225 | 172.155.52.224 |
226 | 172.155.52.225 |
227 | 172.155.52.226 |
228 | 172.155.52.227 |
229 | 172.155.52.228 |
230 | 172.155.52.229 |
231 | 172.155.52.230 |
232 | 172.155.52.231 |
233 | 172.155.52.232 |
234 | 172.155.52.233 |
235 | 172.155.52.234 |
236 | 172.155.52.235 |
237 | 172.155.52.236 |
238 | 172.155.52.237 |
239 | 172.155.52.238 |
240 | 172.155.52.239 |
241 | 172.155.52.240 |
242 | 172.155.52.241 |
243 | 172.155.52.242 |
244 | 172.155.52.243 |
245 | 172.155.52.244 |
246 | 172.155.52.245 |
247 | 172.155.52.246 |
248 | 172.155.52.247 |
249 | 172.155.52.248 |
250 | 172.155.52.249 |
251 | 172.155.52.250 |
252 | 172.155.52.251 |
253 | 172.155.52.252 |
254 | 172.155.52.253 |
255 | 172.155.52.254 |
256 | 172.155.52.255 |
257 | 172.155.53.0 |
258 | 172.155.53.1 |
259 | 172.155.53.2 |
260 | 172.155.53.3 |
261 | 172.155.53.4 |
262 | 172.155.53.5 |
263 | 172.155.53.6 |
264 | 172.155.53.7 |
265 | 172.155.53.8 |
266 | 172.155.53.9 |
267 | 172.155.53.10 |
268 | 172.155.53.11 |
269 | 172.155.53.12 |
270 | 172.155.53.13 |
271 | 172.155.53.14 |
272 | 172.155.53.15 |
273 | 172.155.53.16 |
274 | 172.155.53.17 |
275 | 172.155.53.18 |
276 | 172.155.53.19 |
277 | 172.155.53.20 |
278 | 172.155.53.21 |
279 | 172.155.53.22 |
280 | 172.155.53.23 |
281 | 172.155.53.24 |
282 | 172.155.53.25 |
283 | 172.155.53.26 |
284 | 172.155.53.27 |
285 | 172.155.53.28 |
286 | 172.155.53.29 |
287 | 172.155.53.30 |
288 | 172.155.53.31 |
289 | 172.155.53.32 |
290 | 172.155.53.33 |
291 | 172.155.53.34 |
292 | 172.155.53.35 |
293 | 172.155.53.36 |
294 | 172.155.53.37 |
295 | 172.155.53.38 |
296 | 172.155.53.39 |
297 | 172.155.53.40 |
298 | 172.155.53.41 |
299 | 172.155.53.42 |
300 | 172.155.53.43 |
301 | 172.155.53.44 |
302 | 172.155.53.45 |
303 | 172.155.53.46 |
304 | 172.155.53.47 |
305 | 172.155.53.48 |
306 | 172.155.53.49 |
307 | 172.155.53.50 |
308 | 172.155.53.51 |
309 | 172.155.53.52 |
310 | 172.155.53.53 |
311 | 172.155.53.54 |
312 | 172.155.53.55 |
313 | 172.155.53.56 |
314 | 172.155.53.57 |
315 | 172.155.53.58 |
316 | 172.155.53.59 |
317 | 172.155.53.60 |
318 | 172.155.53.61 |
319 | 172.155.53.62 |
320 | 172.155.53.63 |
321 | 172.155.53.64 |
322 | 172.155.53.65 |
323 | 172.155.53.66 |
324 | 172.155.53.67 |
325 | 172.155.53.68 |
326 | 172.155.53.69 |
327 | 172.155.53.70 |
328 | 172.155.53.71 |
329 | 172.155.53.72 |
330 | 172.155.53.73 |
331 | 172.155.53.74 |
332 | 172.155.53.75 |
333 | 172.155.53.76 |
334 | 172.155.53.77 |
335 | 172.155.53.78 |
336 | 172.155.53.79 |
337 | 172.155.53.80 |
338 | 172.155.53.81 |
339 | 172.155.53.82 |
340 | 172.155.53.83 |
341 | 172.155.53.84 |
342 | 172.155.53.85 |
343 | 172.155.53.86 |
344 | 172.155.53.87 |
345 | 172.155.53.88 |
346 | 172.155.53.89 |
347 | 172.155.53.90 |
348 | 172.155.53.91 |
349 | 172.155.53.92 |
350 | 172.155.53.93 |
351 | 172.155.53.94 |
352 | 172.155.53.95 |
353 | 172.155.53.96 |
354 | 172.155.53.97 |
355 | 172.155.53.98 |
356 | 172.155.53.99 |
357 | 172.155.53.100 |
358 | 172.155.53.101 |
359 | 172.155.53.102 |
360 | 172.155.53.103 |
361 | 172.155.53.104 |
362 | 172.155.53.105 |
363 | 172.155.53.106 |
364 | 172.155.53.107 |
365 | 172.155.53.108 |
366 | 172.155.53.109 |
367 | 172.155.53.110 |
368 | 172.155.53.111 |
369 | 172.155.53.112 |
370 | 172.155.53.113 |
371 | 172.155.53.114 |
372 | 172.155.53.115 |
373 | 172.155.53.116 |
374 | 172.155.53.117 |
375 | 172.155.53.118 |
376 | 172.155.53.119 |
377 | 172.155.53.120 |
378 | 172.155.53.121 |
379 | 172.155.53.122 |
380 | 172.155.53.123 |
381 | 172.155.53.124 |
382 | 172.155.53.125 |
383 | 172.155.53.126 |
384 | 172.155.53.127 |
385 | 172.155.53.128 |
386 | 172.155.53.129 |
387 | 172.155.53.130 |
388 | 172.155.53.131 |
389 | 172.155.53.132 |
390 | 172.155.53.133 |
391 | 172.155.53.134 |
392 | 172.155.53.135 |
393 | 172.155.53.136 |
394 | 172.155.53.137 |
395 | 172.155.53.138 |
396 | 172.155.53.139 |
397 | 172.155.53.140 |
398 | 172.155.53.141 |
399 | 172.155.53.142 |
400 | 172.155.53.143 |
401 | 172.155.53.144 |
402 | 172.155.53.145 |
403 | 172.155.53.146 |
404 | 172.155.53.147 |
405 | 172.155.53.148 |
406 | 172.155.53.149 |
407 | 172.155.53.150 |
408 | 172.155.53.151 |
409 | 172.155.53.152 |
410 | 172.155.53.153 |
411 | 172.155.53.154 |
412 | 172.155.53.155 |
413 | 172.155.53.156 |
414 | 172.155.53.157 |
415 | 172.155.53.158 |
416 | 172.155.53.159 |
417 | 172.155.53.160 |
418 | 172.155.53.161 |
419 | 172.155.53.162 |
420 | 172.155.53.163 |
421 | 172.155.53.164 |
422 | 172.155.53.165 |
423 | 172.155.53.166 |
424 | 172.155.53.167 |
425 | 172.155.53.168 |
426 | 172.155.53.169 |
427 | 172.155.53.170 |
428 | 172.155.53.171 |
429 | 172.155.53.172 |
430 | 172.155.53.173 |
431 | 172.155.53.174 |
432 | 172.155.53.175 |
433 | 172.155.53.176 |
434 | 172.155.53.177 |
435 | 172.155.53.178 |
436 | 172.155.53.179 |
437 | 172.155.53.180 |
438 | 172.155.53.181 |
439 | 172.155.53.182 |
440 | 172.155.53.183 |
441 | 172.155.53.184 |
442 | 172.155.53.185 |
443 | 172.155.53.186 |
444 | 172.155.53.187 |
445 | 172.155.53.188 |
446 | 172.155.53.189 |
447 | 172.155.53.190 |
448 | 172.155.53.191 |
449 | 172.155.53.192 |
450 | 172.155.53.193 |
451 | 172.155.53.194 |
452 | 172.155.53.195 |
453 | 172.155.53.196 |
454 | 172.155.53.197 |
455 | 172.155.53.198 |
456 | 172.155.53.199 |
457 | 172.155.53.200 |
458 | 172.155.53.201 |
459 | 172.155.53.202 |
460 | 172.155.53.203 |
461 | 172.155.53.204 |
462 | 172.155.53.205 |
463 | 172.155.53.206 |
464 | 172.155.53.207 |
465 | 172.155.53.208 |
466 | 172.155.53.209 |
467 | 172.155.53.210 |
468 | 172.155.53.211 |
469 | 172.155.53.212 |
470 | 172.155.53.213 |
471 | 172.155.53.214 |
472 | 172.155.53.215 |
473 | 172.155.53.216 |
474 | 172.155.53.217 |
475 | 172.155.53.218 |
476 | 172.155.53.219 |
477 | 172.155.53.220 |
478 | 172.155.53.221 |
479 | 172.155.53.222 |
480 | 172.155.53.223 |
481 | 172.155.53.224 |
482 | 172.155.53.225 |
483 | 172.155.53.226 |
484 | 172.155.53.227 |
485 | 172.155.53.228 |
486 | 172.155.53.229 |
487 | 172.155.53.230 |
488 | 172.155.53.231 |
489 | 172.155.53.232 |
490 | 172.155.53.233 |
491 | 172.155.53.234 |
492 | 172.155.53.235 |
493 | 172.155.53.236 |
494 | 172.155.53.237 |
495 | 172.155.53.238 |
496 | 172.155.53.239 |
497 | 172.155.53.240 |
498 | 172.155.53.241 |
499 | 172.155.53.242 |
500 | 172.155.53.243 |
501 | 172.155.53.244 |
502 | 172.155.53.245 |
503 | 172.155.53.246 |
504 | 172.155.53.247 |
505 | 172.155.53.248 |
506 | 172.155.53.249 |
507 | 172.155.53.250 |
508 | 172.155.53.251 |
509 | 172.155.53.252 |
510 | 172.155.53.253 |
511 | 172.155.53.254 |
512 | 172.155.53.255 |
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