Top ASNs by IPv4 address space

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

Rank	ASN	Organization	IPv4 addresses	Related ASNs
1	AS749	United States Department of Defense (DoD)	224 166 400	AS721 AS56 AS367
2	AS16509	Amazon.com Inc.	169 053 440	AS14618 AS7224 AS36263
3	AS4134	China Telecom	110 732 800	AS140292 AS140061 AS140308
4	AS7018	AT&T Enterprises LLC	92 882 432	AS6389 AS20057 AS2686
5	AS721	United States Department of Defense (DoD)	72 221 440	AS749 AS56 AS367
6	AS7922	Comcast Cable Communications LLC	68 080 896	AS20214 AS33651 AS21508
7	AS8075	Microsoft Corporation	65 692 928	AS8070 AS3598 AS8069
8	AS4837	CHINA UNICOM China169 Backbone	57 694 976	N/A
9	AS4766	Korea Telecom	47 193 856	AS45400 AS4040 AS3559
10	AS701	Verizon Business	41 745 408	AS22394 AS6167 AS2828
11	AS17676	SoftBank Corp.	38 244 608	AS4725 AS17505
12	AS9808	China Mobile	37 423 360	AS24444 AS24445 AS24400
13	AS174	Cogent Communications LLC	35 908 864	AS4991 AS32068 AS1790
14	AS3320	Deutsche Telekom AG	34 175 232	AS2773 AS2792 AS2777
15	AS22394	Verizon Business	30 306 048	AS701 AS6167 AS2828
16	AS3356	Level 3 Parent LLC	29 469 952	AS3549 AS10753 AS18756
17	AS4713	NTT DOCOMO BUSINESS Inc.	28 624 384	AS38639 AS18072 AS37900
18	AS3269	Telecom Italia S.p.A.	20 795 904	AS16232 AS20746 AS5609
19	AS3215	Orange S.A.	20 119 552	AS5511 AS41128 AS2278
20	AS14618	Amazon.com Inc.	20 079 872	AS16509 AS7224 AS36263
21	AS396982	Google LLC	19 904 000	AS15169 AS19527 AS394089
22	AS209	CenturyLink Communications LLC	19 864 320	AS3561 AS22561 AS2379
23	AS2516	KDDI CORPORATION	18 043 648	N/A
24	AS714	Apple Inc.	17 990 144	AS6185
25	AS6167	Verizon Business	17 692 672	AS701 AS22394 AS2828

Top ASNs by IPv4 addresses