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 (198.170.16.0/23) 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 | 198.170.16.0/23 |
ネットワーク(CIDR) | 198.170.16.0/23 |
サブネット表記 | 198.170.16.0/255.255.254.0 |
短縮表記 | 198.170.16 |
IPアドレス範囲 | 198.170.16.0 - 198.170.17.255 |
IPアドレス総数 | 512 |
ネットワークIP | 198.170.16.0 |
ブロードキャストIP | 198.170.17.255 |
ホストアドレス範囲 | 198.170.16.1 - 198.170.17.254 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 | 198.170.16.0 |
2 | 198.170.16.1 |
3 | 198.170.16.2 |
4 | 198.170.16.3 |
5 | 198.170.16.4 |
6 | 198.170.16.5 |
7 | 198.170.16.6 |
8 | 198.170.16.7 |
9 | 198.170.16.8 |
10 | 198.170.16.9 |
11 | 198.170.16.10 |
12 | 198.170.16.11 |
13 | 198.170.16.12 |
14 | 198.170.16.13 |
15 | 198.170.16.14 |
16 | 198.170.16.15 |
17 | 198.170.16.16 |
18 | 198.170.16.17 |
19 | 198.170.16.18 |
20 | 198.170.16.19 |
21 | 198.170.16.20 |
22 | 198.170.16.21 |
23 | 198.170.16.22 |
24 | 198.170.16.23 |
25 | 198.170.16.24 |
26 | 198.170.16.25 |
27 | 198.170.16.26 |
28 | 198.170.16.27 |
29 | 198.170.16.28 |
30 | 198.170.16.29 |
31 | 198.170.16.30 |
32 | 198.170.16.31 |
33 | 198.170.16.32 |
34 | 198.170.16.33 |
35 | 198.170.16.34 |
36 | 198.170.16.35 |
37 | 198.170.16.36 |
38 | 198.170.16.37 |
39 | 198.170.16.38 |
40 | 198.170.16.39 |
41 | 198.170.16.40 |
42 | 198.170.16.41 |
43 | 198.170.16.42 |
44 | 198.170.16.43 |
45 | 198.170.16.44 |
46 | 198.170.16.45 |
47 | 198.170.16.46 |
48 | 198.170.16.47 |
49 | 198.170.16.48 |
50 | 198.170.16.49 |
51 | 198.170.16.50 |
52 | 198.170.16.51 |
53 | 198.170.16.52 |
54 | 198.170.16.53 |
55 | 198.170.16.54 |
56 | 198.170.16.55 |
57 | 198.170.16.56 |
58 | 198.170.16.57 |
59 | 198.170.16.58 |
60 | 198.170.16.59 |
61 | 198.170.16.60 |
62 | 198.170.16.61 |
63 | 198.170.16.62 |
64 | 198.170.16.63 |
65 | 198.170.16.64 |
66 | 198.170.16.65 |
67 | 198.170.16.66 |
68 | 198.170.16.67 |
69 | 198.170.16.68 |
70 | 198.170.16.69 |
71 | 198.170.16.70 |
72 | 198.170.16.71 |
73 | 198.170.16.72 |
74 | 198.170.16.73 |
75 | 198.170.16.74 |
76 | 198.170.16.75 |
77 | 198.170.16.76 |
78 | 198.170.16.77 |
79 | 198.170.16.78 |
80 | 198.170.16.79 |
81 | 198.170.16.80 |
82 | 198.170.16.81 |
83 | 198.170.16.82 |
84 | 198.170.16.83 |
85 | 198.170.16.84 |
86 | 198.170.16.85 |
87 | 198.170.16.86 |
88 | 198.170.16.87 |
89 | 198.170.16.88 |
90 | 198.170.16.89 |
91 | 198.170.16.90 |
92 | 198.170.16.91 |
93 | 198.170.16.92 |
94 | 198.170.16.93 |
95 | 198.170.16.94 |
96 | 198.170.16.95 |
97 | 198.170.16.96 |
98 | 198.170.16.97 |
99 | 198.170.16.98 |
100 | 198.170.16.99 |
101 | 198.170.16.100 |
102 | 198.170.16.101 |
103 | 198.170.16.102 |
104 | 198.170.16.103 |
105 | 198.170.16.104 |
106 | 198.170.16.105 |
107 | 198.170.16.106 |
108 | 198.170.16.107 |
109 | 198.170.16.108 |
110 | 198.170.16.109 |
111 | 198.170.16.110 |
112 | 198.170.16.111 |
113 | 198.170.16.112 |
114 | 198.170.16.113 |
115 | 198.170.16.114 |
116 | 198.170.16.115 |
117 | 198.170.16.116 |
118 | 198.170.16.117 |
119 | 198.170.16.118 |
120 | 198.170.16.119 |
121 | 198.170.16.120 |
122 | 198.170.16.121 |
123 | 198.170.16.122 |
124 | 198.170.16.123 |
125 | 198.170.16.124 |
126 | 198.170.16.125 |
127 | 198.170.16.126 |
128 | 198.170.16.127 |
129 | 198.170.16.128 |
130 | 198.170.16.129 |
131 | 198.170.16.130 |
132 | 198.170.16.131 |
133 | 198.170.16.132 |
134 | 198.170.16.133 |
135 | 198.170.16.134 |
136 | 198.170.16.135 |
137 | 198.170.16.136 |
138 | 198.170.16.137 |
139 | 198.170.16.138 |
140 | 198.170.16.139 |
141 | 198.170.16.140 |
142 | 198.170.16.141 |
143 | 198.170.16.142 |
144 | 198.170.16.143 |
145 | 198.170.16.144 |
146 | 198.170.16.145 |
147 | 198.170.16.146 |
148 | 198.170.16.147 |
149 | 198.170.16.148 |
150 | 198.170.16.149 |
151 | 198.170.16.150 |
152 | 198.170.16.151 |
153 | 198.170.16.152 |
154 | 198.170.16.153 |
155 | 198.170.16.154 |
156 | 198.170.16.155 |
157 | 198.170.16.156 |
158 | 198.170.16.157 |
159 | 198.170.16.158 |
160 | 198.170.16.159 |
161 | 198.170.16.160 |
162 | 198.170.16.161 |
163 | 198.170.16.162 |
164 | 198.170.16.163 |
165 | 198.170.16.164 |
166 | 198.170.16.165 |
167 | 198.170.16.166 |
168 | 198.170.16.167 |
169 | 198.170.16.168 |
170 | 198.170.16.169 |
171 | 198.170.16.170 |
172 | 198.170.16.171 |
173 | 198.170.16.172 |
174 | 198.170.16.173 |
175 | 198.170.16.174 |
176 | 198.170.16.175 |
177 | 198.170.16.176 |
178 | 198.170.16.177 |
179 | 198.170.16.178 |
180 | 198.170.16.179 |
181 | 198.170.16.180 |
182 | 198.170.16.181 |
183 | 198.170.16.182 |
184 | 198.170.16.183 |
185 | 198.170.16.184 |
186 | 198.170.16.185 |
187 | 198.170.16.186 |
188 | 198.170.16.187 |
189 | 198.170.16.188 |
190 | 198.170.16.189 |
191 | 198.170.16.190 |
192 | 198.170.16.191 |
193 | 198.170.16.192 |
194 | 198.170.16.193 |
195 | 198.170.16.194 |
196 | 198.170.16.195 |
197 | 198.170.16.196 |
198 | 198.170.16.197 |
199 | 198.170.16.198 |
200 | 198.170.16.199 |
201 | 198.170.16.200 |
202 | 198.170.16.201 |
203 | 198.170.16.202 |
204 | 198.170.16.203 |
205 | 198.170.16.204 |
206 | 198.170.16.205 |
207 | 198.170.16.206 |
208 | 198.170.16.207 |
209 | 198.170.16.208 |
210 | 198.170.16.209 |
211 | 198.170.16.210 |
212 | 198.170.16.211 |
213 | 198.170.16.212 |
214 | 198.170.16.213 |
215 | 198.170.16.214 |
216 | 198.170.16.215 |
217 | 198.170.16.216 |
218 | 198.170.16.217 |
219 | 198.170.16.218 |
220 | 198.170.16.219 |
221 | 198.170.16.220 |
222 | 198.170.16.221 |
223 | 198.170.16.222 |
224 | 198.170.16.223 |
225 | 198.170.16.224 |
226 | 198.170.16.225 |
227 | 198.170.16.226 |
228 | 198.170.16.227 |
229 | 198.170.16.228 |
230 | 198.170.16.229 |
231 | 198.170.16.230 |
232 | 198.170.16.231 |
233 | 198.170.16.232 |
234 | 198.170.16.233 |
235 | 198.170.16.234 |
236 | 198.170.16.235 |
237 | 198.170.16.236 |
238 | 198.170.16.237 |
239 | 198.170.16.238 |
240 | 198.170.16.239 |
241 | 198.170.16.240 |
242 | 198.170.16.241 |
243 | 198.170.16.242 |
244 | 198.170.16.243 |
245 | 198.170.16.244 |
246 | 198.170.16.245 |
247 | 198.170.16.246 |
248 | 198.170.16.247 |
249 | 198.170.16.248 |
250 | 198.170.16.249 |
251 | 198.170.16.250 |
252 | 198.170.16.251 |
253 | 198.170.16.252 |
254 | 198.170.16.253 |
255 | 198.170.16.254 |
256 | 198.170.16.255 |
257 | 198.170.17.0 |
258 | 198.170.17.1 |
259 | 198.170.17.2 |
260 | 198.170.17.3 |
261 | 198.170.17.4 |
262 | 198.170.17.5 |
263 | 198.170.17.6 |
264 | 198.170.17.7 |
265 | 198.170.17.8 |
266 | 198.170.17.9 |
267 | 198.170.17.10 |
268 | 198.170.17.11 |
269 | 198.170.17.12 |
270 | 198.170.17.13 |
271 | 198.170.17.14 |
272 | 198.170.17.15 |
273 | 198.170.17.16 |
274 | 198.170.17.17 |
275 | 198.170.17.18 |
276 | 198.170.17.19 |
277 | 198.170.17.20 |
278 | 198.170.17.21 |
279 | 198.170.17.22 |
280 | 198.170.17.23 |
281 | 198.170.17.24 |
282 | 198.170.17.25 |
283 | 198.170.17.26 |
284 | 198.170.17.27 |
285 | 198.170.17.28 |
286 | 198.170.17.29 |
287 | 198.170.17.30 |
288 | 198.170.17.31 |
289 | 198.170.17.32 |
290 | 198.170.17.33 |
291 | 198.170.17.34 |
292 | 198.170.17.35 |
293 | 198.170.17.36 |
294 | 198.170.17.37 |
295 | 198.170.17.38 |
296 | 198.170.17.39 |
297 | 198.170.17.40 |
298 | 198.170.17.41 |
299 | 198.170.17.42 |
300 | 198.170.17.43 |
301 | 198.170.17.44 |
302 | 198.170.17.45 |
303 | 198.170.17.46 |
304 | 198.170.17.47 |
305 | 198.170.17.48 |
306 | 198.170.17.49 |
307 | 198.170.17.50 |
308 | 198.170.17.51 |
309 | 198.170.17.52 |
310 | 198.170.17.53 |
311 | 198.170.17.54 |
312 | 198.170.17.55 |
313 | 198.170.17.56 |
314 | 198.170.17.57 |
315 | 198.170.17.58 |
316 | 198.170.17.59 |
317 | 198.170.17.60 |
318 | 198.170.17.61 |
319 | 198.170.17.62 |
320 | 198.170.17.63 |
321 | 198.170.17.64 |
322 | 198.170.17.65 |
323 | 198.170.17.66 |
324 | 198.170.17.67 |
325 | 198.170.17.68 |
326 | 198.170.17.69 |
327 | 198.170.17.70 |
328 | 198.170.17.71 |
329 | 198.170.17.72 |
330 | 198.170.17.73 |
331 | 198.170.17.74 |
332 | 198.170.17.75 |
333 | 198.170.17.76 |
334 | 198.170.17.77 |
335 | 198.170.17.78 |
336 | 198.170.17.79 |
337 | 198.170.17.80 |
338 | 198.170.17.81 |
339 | 198.170.17.82 |
340 | 198.170.17.83 |
341 | 198.170.17.84 |
342 | 198.170.17.85 |
343 | 198.170.17.86 |
344 | 198.170.17.87 |
345 | 198.170.17.88 |
346 | 198.170.17.89 |
347 | 198.170.17.90 |
348 | 198.170.17.91 |
349 | 198.170.17.92 |
350 | 198.170.17.93 |
351 | 198.170.17.94 |
352 | 198.170.17.95 |
353 | 198.170.17.96 |
354 | 198.170.17.97 |
355 | 198.170.17.98 |
356 | 198.170.17.99 |
357 | 198.170.17.100 |
358 | 198.170.17.101 |
359 | 198.170.17.102 |
360 | 198.170.17.103 |
361 | 198.170.17.104 |
362 | 198.170.17.105 |
363 | 198.170.17.106 |
364 | 198.170.17.107 |
365 | 198.170.17.108 |
366 | 198.170.17.109 |
367 | 198.170.17.110 |
368 | 198.170.17.111 |
369 | 198.170.17.112 |
370 | 198.170.17.113 |
371 | 198.170.17.114 |
372 | 198.170.17.115 |
373 | 198.170.17.116 |
374 | 198.170.17.117 |
375 | 198.170.17.118 |
376 | 198.170.17.119 |
377 | 198.170.17.120 |
378 | 198.170.17.121 |
379 | 198.170.17.122 |
380 | 198.170.17.123 |
381 | 198.170.17.124 |
382 | 198.170.17.125 |
383 | 198.170.17.126 |
384 | 198.170.17.127 |
385 | 198.170.17.128 |
386 | 198.170.17.129 |
387 | 198.170.17.130 |
388 | 198.170.17.131 |
389 | 198.170.17.132 |
390 | 198.170.17.133 |
391 | 198.170.17.134 |
392 | 198.170.17.135 |
393 | 198.170.17.136 |
394 | 198.170.17.137 |
395 | 198.170.17.138 |
396 | 198.170.17.139 |
397 | 198.170.17.140 |
398 | 198.170.17.141 |
399 | 198.170.17.142 |
400 | 198.170.17.143 |
401 | 198.170.17.144 |
402 | 198.170.17.145 |
403 | 198.170.17.146 |
404 | 198.170.17.147 |
405 | 198.170.17.148 |
406 | 198.170.17.149 |
407 | 198.170.17.150 |
408 | 198.170.17.151 |
409 | 198.170.17.152 |
410 | 198.170.17.153 |
411 | 198.170.17.154 |
412 | 198.170.17.155 |
413 | 198.170.17.156 |
414 | 198.170.17.157 |
415 | 198.170.17.158 |
416 | 198.170.17.159 |
417 | 198.170.17.160 |
418 | 198.170.17.161 |
419 | 198.170.17.162 |
420 | 198.170.17.163 |
421 | 198.170.17.164 |
422 | 198.170.17.165 |
423 | 198.170.17.166 |
424 | 198.170.17.167 |
425 | 198.170.17.168 |
426 | 198.170.17.169 |
427 | 198.170.17.170 |
428 | 198.170.17.171 |
429 | 198.170.17.172 |
430 | 198.170.17.173 |
431 | 198.170.17.174 |
432 | 198.170.17.175 |
433 | 198.170.17.176 |
434 | 198.170.17.177 |
435 | 198.170.17.178 |
436 | 198.170.17.179 |
437 | 198.170.17.180 |
438 | 198.170.17.181 |
439 | 198.170.17.182 |
440 | 198.170.17.183 |
441 | 198.170.17.184 |
442 | 198.170.17.185 |
443 | 198.170.17.186 |
444 | 198.170.17.187 |
445 | 198.170.17.188 |
446 | 198.170.17.189 |
447 | 198.170.17.190 |
448 | 198.170.17.191 |
449 | 198.170.17.192 |
450 | 198.170.17.193 |
451 | 198.170.17.194 |
452 | 198.170.17.195 |
453 | 198.170.17.196 |
454 | 198.170.17.197 |
455 | 198.170.17.198 |
456 | 198.170.17.199 |
457 | 198.170.17.200 |
458 | 198.170.17.201 |
459 | 198.170.17.202 |
460 | 198.170.17.203 |
461 | 198.170.17.204 |
462 | 198.170.17.205 |
463 | 198.170.17.206 |
464 | 198.170.17.207 |
465 | 198.170.17.208 |
466 | 198.170.17.209 |
467 | 198.170.17.210 |
468 | 198.170.17.211 |
469 | 198.170.17.212 |
470 | 198.170.17.213 |
471 | 198.170.17.214 |
472 | 198.170.17.215 |
473 | 198.170.17.216 |
474 | 198.170.17.217 |
475 | 198.170.17.218 |
476 | 198.170.17.219 |
477 | 198.170.17.220 |
478 | 198.170.17.221 |
479 | 198.170.17.222 |
480 | 198.170.17.223 |
481 | 198.170.17.224 |
482 | 198.170.17.225 |
483 | 198.170.17.226 |
484 | 198.170.17.227 |
485 | 198.170.17.228 |
486 | 198.170.17.229 |
487 | 198.170.17.230 |
488 | 198.170.17.231 |
489 | 198.170.17.232 |
490 | 198.170.17.233 |
491 | 198.170.17.234 |
492 | 198.170.17.235 |
493 | 198.170.17.236 |
494 | 198.170.17.237 |
495 | 198.170.17.238 |
496 | 198.170.17.239 |
497 | 198.170.17.240 |
498 | 198.170.17.241 |
499 | 198.170.17.242 |
500 | 198.170.17.243 |
501 | 198.170.17.244 |
502 | 198.170.17.245 |
503 | 198.170.17.246 |
504 | 198.170.17.247 |
505 | 198.170.17.248 |
506 | 198.170.17.249 |
507 | 198.170.17.250 |
508 | 198.170.17.251 |
509 | 198.170.17.252 |
510 | 198.170.17.253 |
511 | 198.170.17.254 |
512 | 198.170.17.255 |
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