Size Distribution of Registered IPv4 Prefixes

An overview of the total number of IPv4 delegations grouped by /8s

IPv4 delegations consist of PA (provider aggregated) allocations, PI (provider independent) assignments and other legacy assignments of unspecified status.

The first column shows the /8. Further columns show the total number of allocations and assigmnents for the specific prefix. To enhance readability the header row is repeated.

For background informations see RIPE Labs article.


/32/31/30/29/28/27/26/25/24/23/22/21/20/19/18/17/16/15/14/13/12/11/10/9/8
1/822231918161189181410632
2/84818235215316144
3/82
4/881
5/822437251543810291484250161341
6/81
7/81
8/842211111552312
9/821111111451195111
10/8
11/81
12/81
13/8221111941
14/82619598816461473244
15/85813131111
16/89029762
17/81
18/8211
19/81
20/814942212
21/81
22/81
23/824814362321026025241465222
24/8666189409010886585914861
25/81
26/81
27/8524014666674234281946941
28/81
29/81
30/81
31/8290103160428123942326321610421
32/8652541
33/81
34/842222222221113
35/8255881513678
36/84612164112014434434231
37/82226915047411375504544191422
38/81
39/84106411222222222
40/8464481084221233
41/812609992104401934105441
42/842231110119141491177
43/83139158181642621
44/821
45/87244838454505626211677432
46/8262971386601891299060613321
47/8181514551
48/8215111
49/881039241921224151414451
50/8231012511225312916621
/32/31/30/29/28/27/26/25/24/23/22/21/20/19/18/17/16/15/14/13/12/11/10/9/8
51/8211113261005871
52/854191513107454764321
53/81
54/868184123
55/81
56/8182294
57/821111159133823
58/836282727121915333134982
59/852381018898141721104111
60/8489926215632
61/8383346288080644857151451
62/8374102135138573441115612112
63/850313011543112117446411
64/8500242287129443304143563812711
65/81014347275275361419913522
66/839518725911142431210758521852
67/81747867412211062719171610721
68/84022312213643129151361321
69/82321331126731021790343411952
70/82820292755304118161810522
71/82115142520131212551
72/888517227102115583029177412
73/81
74/814067435206967234103316136
75/84631191121112181758741
76/850231685619271722108423
77/816567175255144115634614412241
78/81226711413769654616191163211
79/86852831578033201816132222
80/819781130866921310252823771
81/862691107940422354028139331
82/880627559391909828291110231
83/813455119170329968352996441
84/8122419364447670302911971
85/81821133091887519276423114943
86/833011596622628111519634221
87/81681141091783385483123107313
88/8702511452267232292383314
89/810084203764131461531055126221012
90/82116453121283281
91/824369153616822461298441161877211
92/81866924910690652923112011511
93/8302125172393136193626228521
94/83521462013611837569462620672
95/8124441751889268655616169521
96/867139801916481133131
97/886116193213331211
98/8149976137310784221
99/821292114105742
100/82111154213221
/32/31/30/29/28/27/26/25/24/23/22/21/20/19/18/17/16/15/14/13/12/11/10/9/8
101/82613432831302216251511541
102/830715710936838272111105717
103/848549020986974721
104/81948755517413872232823104241
105/827125463101
106/8238112226864511
107/8482018146324181110752131
108/88116832123107553131
109/824088160400190128543433106331
110/85437744343341614131313812
111/82619512631211410111393311
112/8635181917128131474121
113/8430662932221415141210632
114/881033483221211017911461
115/8816263137312112231114731
116/84125125725229202123179141
117/81616224332111371286612
118/8166354731312217302216611
119/83924388578473621301212721
120/841221182213814975121
121/8124196126122811301415512
122/8611337046443118241410541
123/82014804131321718201518431
124/84224273451453649261931
125/82714716284018261371121
126/82322412181085311
127/8
128/82414111422065723042
129/82420164916171322221
130/8994192602125121522251
131/83618521181038822931
132/86423411851253
133/81
134/872316936162610132343
135/81311217943314418123
136/8543664714111411101116212
137/84322629415119226211
138/8242497682515111421331
139/83720172191617138199333
140/8161156927161011221321
141/811252106743924171121652
142/8742564283223271620271
143/818193301419321417177553
144/840551031720101792391
145/821318161510816091211
146/828336535722271722204312
147/812778133365331121522222
148/811172352419201212199312
149/81244647833438222621232
150/8714191182315101322062
/32/31/30/29/28/27/26/25/24/23/22/21/20/19/18/17/16/15/14/13/12/11/10/9/8
151/8910942252991812254221
152/812107216282227221448641
153/810761217747751143111
154/87830332220136633551
155/81412311514151212224211
156/8611130625923211675142213
157/81584841154643352311198231
158/854436546383119162292
159/82252847332725162301
160/8266762198272915175196521
161/8179163454027312011213511
162/813410892133617124141325321
163/811873001482691325174822
164/82619110511919141415410612
165/83011641021172018191532
166/821197810215962
167/81497718818412415202152
168/8985378420422325131546222
169/823513817121410263135331
170/81811181264534943362518832
171/8421174112121195107211
172/8121401887956181491476523
173/8464345312146736221668532
174/8401218523111257825511
175/88146326201416616854411
176/837278201360156114261830191131
177/8122807314723658137172819242
178/82027711944418851653734161252
179/850613511011155232243328291
180/8332511552313818142411114111
181/83433251223230191929271591
182/8109712123332013218858
183/8615291781796763322
184/86354401213711159541
185/8212729590153262
186/841242531562434349565024201
187/8242012428361653513232211231
188/852419622731276135545242141541
189/814311152524045221828278122
190/8474637511724115910462583451
191/818151241048835231422132923
192/8130411310112051635614786406631
193/8277144135505318461603359206180452586124
194/8110101932261437137929619229071421102
195/81118151865159862590734557656115
196/862515014810298753343561032
197/8552428393311211061112
198/85717104363834924713674427998
199/831638071456762149733921661461
200/889421947625056831814779821
/32/31/30/29/28/27/26/25/24/23/22/21/20/19/18/17/16/15/14/13/12/11/10/9/8
201/8125623145917213668736915712
202/814205857054666964117019188911
203/826838876324023784481355620471
204/830187726113841551106130662014
205/813963493031511378137123458422
206/886413322214018622777308313131
207/82611251677213316814967811410
208/820610210035177668622529126111
209/83612022031152373081776574115
210/81499749551072171117127101142
211/86317129310852424827155
212/8450143214113968588473712
213/828610922613696606210536163
214/81
215/81
216/8596305322159678423144712897
217/836211914910310231819183478321
218/861926312133139281372
219/8457921142452311
220/83431472015102219271111622
221/8269912719201321127542
222/8299920322391011
223/881245212416816111711532
Showing results as of 2025-05-01 00:00:00 UTC

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Data is based on the RIR stats files of the five Regional Internet Registries:


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