United States

United States

ARIN 31,718 Networks 1,607,124,896 IPv4 addresses

31,718 Networks
1,607,124,896 IPv4 addresses
10,631 IPv6 prefixes
ARIN Registry (RIR)

Top networks · by prefix count

#NetworksTypeIPv4 prefixesIPv6 prefixes
1 AS22773 Cox Communications Inc. ISP 4,775 1,241
2 AS11492 CABLE ONE, INC. ISP 4,583 8
3 AS212238 Datacamp Limited Unknown 3,240 667
4 AS6167 Verizon Business Unknown 2,157 1,650
5 AS30036 Mediacom Communications Corp ISP 2,549 1,234
6 AS749 United States Department of Defense (DoD) Unknown 3,137 0
7 AS36352 HostPapa ISP 3,085 28
8 AS7029 Windstream Communications LLC ISP 2,642 315
9 AS20115 Charter Communications LLC ISP 2,408 226
10 AS62240 Clouvider Content 1,352 1,111
11 AS174 Cogent Communications, LLC ISP 2,370 65
12 AS6079 RCN ISP 2,157 119
13 AS36183 Akamai Technologies, Inc. Unknown 465 1,633
14 AS714 Apple Inc. Content 1,503 431
15 AS11776 Breezeline ISP 1,899 17
16 AS14618 Amazon.com, Inc. Unknown 1,330 546
17 AS11404 Wave Broadband ISP 1,728 24
18 AS398781 OCULUS NETWORKS INC Unknown 1,691 0
19 AS54113 Fastly, Inc. Content 559 1,115
20 AS209 CenturyLink Communications, LLC ISP 1,620 32

Registry state, monthly snapshots

0 1B 2003-11 2026-06
IPv4 addresses Source: RIR delegated archives, monthly snapshots
Data table
MonthIPv4 addressesNetworks
2022-05161982166429350
2022-06162001264029405
2022-07161730518429512
2022-08161720867229544
2022-09161842236829584
2022-10161832304029613
2022-11161918832029632
2022-12161724220829798
2023-01161775420829865
2023-02161808060829916
2023-03161801507229960
2023-04161782332830031
2023-05161791369630076
2023-06161845564830141
2023-07161757372830171
2023-08161644092830226
2023-09161686870430259
2023-10161640252830304
2023-11161400380830339
2023-12161378876830361
2024-01161341654430375
2024-02161355273630467
2024-03161385712030520
2024-04161434454430586
2024-05161494128030695
2024-06161474288030781
2024-07161399868830821
2024-08161420835230876
2024-09161358499230935
2024-10161262985630945
2024-11161163478431032
2024-12161157180831067
2025-01161170185631137
2025-02161230755231204
2025-03161641737631274
2025-04161930480031288
2025-05161665904031332
2025-06161565987231372
2025-07161384124831404
2025-08161333590431468
2025-09161294934431519
2025-10161317616031548
2025-11161224329631632
2025-12161142921631657
2026-0129102176793
2026-0229101920787
2026-0329308000789
2026-0429796768795
2026-0530249632810
2026-0630560160833

Allocation history · Allocation events

First allocation
December 1982 1982-12
Largest allocation month
July 1991 +53,461,760
Registry (RIR)
ARIN
0 1B 1982-12 2026-06
IPv4 addresses (cumulative) ASNs (cumulative) Source: RIR delegated statistics
Data table
MonthIPv4 addresses (cumulative)ASNs (cumulative)
2022-05149370403226941
2022-06149588156827069
2022-07149826928027163
2022-08150273161627245
2022-09150836105627323
2022-10150977366427381
2022-11151193891227447
2022-12151629782427538
2023-01151700592027619
2023-02151759676827706
2023-03152109475227791
2023-04152186224027850
2023-05152308131227941
2023-06152815907228026
2023-07153058211228110
2023-08153213244828187
2023-09153568803228266
2023-10153679369628337
2023-11153778902428403
2023-12153969699228460
2024-01154201353628574
2024-02154512931228676
2024-03154855561628780
2024-04154971580828902
2024-05155007164829015
2024-06155076361629124
2024-07155175305629231
2024-08155585699229348
2024-09155616547229442
2024-10155666236829565
2024-11155930659229670
2024-12156438256029788
2025-01156649481629916
2025-02157012489630035
2025-03157671356830145
2025-04158481673630272
2025-05158498800030365
2025-06158527497630464
2025-07158584406430585
2025-08158593673630689
2025-09158728432030806
2025-10158786595230960
2025-11159329801631044
2025-12159495024031162
2026-01159566627231273
2026-02160523913631401
2026-03160572278431536
2026-04160640604831671
2026-05160694390431793
2026-06160712310431848

Daily snapshot · accumulating since June 2026

1.6B 1.6B 2026-06-12 2026-06-15
IPv4 addresses Source: ipdex daily snapshot
Data table
DayIPv4 addressesNetworks
2026-06-12160712310431713
2026-06-13160712310431713
2026-06-14160712489631718
2026-06-15160712489631718
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