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

225,105,152

Rank

2

AS Number

AS4134

Organisation

No.31,Jin-rong Street Beijing 100032

Total IPv4 Addresses

103,150,898

Rank

3

AS Number

AS7018

Organisation

AT&T Services, Inc.

Total IPv4 Addresses

91,889,900

Rank

4

AS Number

AS4837

Organisation

CHINA UNICOM China169 Backbone

Total IPv4 Addresses

57,219,444

Rank

5

AS Number

AS8075

Organisation

Microsoft Corporation

Total IPv4 Addresses

52,183,723

Rank

6

AS Number

AS4766

Organisation

Korea Telecom

Total IPv4 Addresses

45,302,233

Rank

7

AS Number

AS16509

Organisation

Amazon.com, Inc.

Total IPv4 Addresses

44,174,424

Rank

8

AS Number

AS17676

Organisation

SoftBank Corp.

Total IPv4 Addresses

43,471,649

Rank

9

AS Number

AS701

Organisation

Verizon Business

Total IPv4 Addresses

39,666,716

Rank

10

AS Number

AS3320

Organisation

Deutsche Telekom AG

Total IPv4 Addresses

33,991,431

Rank

11

AS Number

AS721

Organisation

DoD Network Information Center

Total IPv4 Addresses

30,731,008

Rank

12

AS Number

AS6167

Organisation

Verizon Business

Total IPv4 Addresses

28,828,761

Rank

13

AS Number

AS4713

Organisation

NTT Communications Corporation

Total IPv4 Addresses

28,807,033

Rank

14

AS Number

AS3356

Organisation

Level 3 Parent, LLC

Total IPv4 Addresses

28,248,383

Rank

15

AS Number

AS3269

Organisation

Telecom Italia S.p.A.

Total IPv4 Addresses

20,604,767