Top organizations by IPv4 address space

List of countries by IPv4 allocation Top ASNs by IPv4 Top ASNs by IPv6 Top orgs by IPv4

Rank	Organization	IPv4 addresses	ASN count	Top ASNs
1	United States Department of Defense (DoD)	332 278 272	187	AS749 AS721 AS56 AS749: 224 166 912 \| AS721: 72 229 632 \| AS56: 7 764 224
2	Amazon.com Inc.	188 066 560	9	AS16509 AS14618 AS7224 AS16509: 168 578 816 \| AS14618: 19 455 744 \| AS7224: 29 696
3	China Telecom	115 625 984	228	AS4134 AS140292 AS140061 AS4134: 110 732 800 \| AS140292: 1 122 560 \| AS140061: 516 096
4	AT&T Enterprises LLC	106 991 872	42	AS7018 AS6389 AS20057 AS7018: 92 883 712 \| AS6389: 4 588 288 \| AS20057: 4 101 888
5	Verizon Business	105 689 344	69	AS701 AS22394 AS6167 AS701: 41 417 728 \| AS22394: 30 306 048 \| AS6167: 17 377 792
6	Comcast Cable Communications LLC	70 408 192	45	AS7922 AS33542 AS53297 AS7922: 68 058 624 \| AS33542: 458 752 \| AS53297: 458 752
7	Microsoft Corporation	67 324 928	19	AS8075 AS8070 AS3598 AS8075: 65 679 616 \| AS8070: 811 264 \| AS3598: 533 504
8	CHINA UNICOM China169 Backbone	57 712 896	1	AS4837 AS4837: 57 712 896
9	Korea Telecom	47 217 920	5	AS4766 AS45400 AS4040 AS4766: 47 192 320 \| AS45400: 25 344 \| AS4040: 256
10	China Mobile	43 471 360	7	AS9808 AS24444 AS24445 AS9808: 37 424 384 \| AS24444: 2 049 792 \| AS24445: 2 036 224
11	Charter Communications Inc	41 649 152	22	AS10796 AS20001 AS33363 AS10796: 7 723 776 \| AS20001: 6 944 512 \| AS33363: 5 815 808
12	SoftBank Corp.	39 998 976	3	AS17676 AS4725 AS17505 AS17676: 38 060 288 \| AS4725: 1 932 032 \| AS17505: 6 656
13	Cogent Communications LLC	35 945 984	19	AS174 AS4991 AS32068 AS174: 35 919 872 \| AS4991: 16 384 \| AS32068: 6 912
14	Level 3 Parent LLC	35 436 288	20	AS3356 AS3549 AS10753 AS3356: 29 472 256 \| AS3549: 5 032 448 \| AS10753: 604 672
15	Deutsche Telekom AG	34 226 688	5	AS3320 AS2773 AS2792 AS3320: 34 206 720 \| AS2773: 11 776 \| AS2792: 8 192
16	CenturyLink Communications LLC	31 772 416	36	AS209 AS3561 AS22561 AS209: 19 864 576 \| AS3561: 8 920 320 \| AS22561: 1 384 448
17	NTT DOCOMO BUSINESS Inc.	28 640 768	7	AS4713 AS38639 AS18072 AS4713: 28 624 896 \| AS38639: 13 312 \| AS18072: 1 280
18	Google LLC	24 616 448	15	AS396982 AS15169 AS19527 AS396982: 19 891 200 \| AS15169: 1 977 088 \| AS19527: 1 821 696
19	TELEFÔNICA BRASIL S.A	22 905 344	9	AS26599 AS27699 AS18881 AS26599: 11 627 520 \| AS27699: 4 645 632 \| AS18881: 4 616 192
20	Telecom Italia S.p.A.	22 855 424	8	AS3269 AS16232 AS20746 AS3269: 20 795 904 \| AS16232: 1 777 664 \| AS20746: 210 944
21	Orange S.A.	20 630 784	19	AS3215 AS5511 AS2278 AS3215: 20 070 400 \| AS5511: 413 440 \| AS2278: 98 560
22	British Telecommunications PLC	18 159 104	7	AS2856 AS6871 AS5400 AS2856: 14 832 896 \| AS6871: 2 097 664 \| AS5400: 697 600
23	KDDI CORPORATION	18 034 944	1	AS2516 AS2516: 18 034 944
24	Apple Inc.	18 014 720	2	AS714 AS6185 AS714: 17 990 144 \| AS6185: 24 576
25	SK Broadband Co Ltd	17 594 624	23	AS9318 AS17849 AS9689 AS9318: 15 289 344 \| AS17849: 313 344 \| AS9689: 291 840

Top organizations by IPv4 address space

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