NETWORK INSIGHTS
Autonomous Systems advertised IPv4 space rank

This report shows the global list of active Autonomous Systems (AS) ranked by total advertised IPv4 addresses.

Rank

1

AS Number

AS749

Organisation

DoD Network Information Center

Total IPv4 Addresses

224,991,738

Rank

2

AS Number

AS4134

Organisation

No.31,Jin-rong Street Beijing 100032

Total IPv4 Addresses

102,970,555

Rank

3

AS Number

AS7018

Organisation

AT&T Services, Inc.

Total IPv4 Addresses

92,059,224

Rank

4

AS Number

AS4837

Organisation

CHINA UNICOM China169 Backbone

Total IPv4 Addresses

57,228,041

Rank

5

AS Number

AS8075

Organisation

Microsoft Corporation

Total IPv4 Addresses

52,182,749

Rank

6

AS Number

AS4766

Organisation

Korea Telecom

Total IPv4 Addresses

45,295,532

Rank

7

AS Number

AS16509

Organisation

Amazon.com, Inc.

Total IPv4 Addresses

44,936,328

Rank

8

AS Number

AS17676

Organisation

SoftBank Corp.

Total IPv4 Addresses

43,465,856

Rank

9

AS Number

AS701

Organisation

Verizon Business

Total IPv4 Addresses

39,690,578

Rank

10

AS Number

AS3320

Organisation

Deutsche Telekom AG

Total IPv4 Addresses

33,992,191

Rank

11

AS Number

AS721

Organisation

DoD Network Information Center

Total IPv4 Addresses

30,767,872

Rank

12

AS Number

AS6167

Organisation

Verizon Business

Total IPv4 Addresses

30,294,584

Rank

13

AS Number

AS4713

Organisation

NTT Communications Corporation

Total IPv4 Addresses

28,740,119

Rank

14

AS Number

AS3356

Organisation

Level 3 Parent, LLC

Total IPv4 Addresses

28,289,514

Rank

15

AS Number

AS3269

Organisation

Telecom Italia S.p.A.

Total IPv4 Addresses

20,580,994