Autonomous Systems are networks typically governed by large ISPs that participate in global Internet routing. Each network is assigned a unique identification number known as the AS number or ASN by the Internet Assigned Numbers Authority.
| ASN | 3372 |
|---|
| Name | MCI-ASN - MCI |
|---|
| Organization | MCI |
|---|
| Country | United States 
|
|---|
| Registry | ARIN |
|---|
| IPv4 addresses | 368,896 |
|---|
| IPv6 /64 networks | 0 |
|---|
| Prefixes | 78 |
|---|
IPv4 addresses
- showing the first 20 of 78 networks
| Network |
Location |
Addresses |
| 162.47.158.0/23 |
Verizon Communications |
Washington D.C. |
512 |
| 162.47.165.0/24 |
Verizon Communications |
Washington D.C. |
256 |
| 165.122.0.0/19 |
Mci |
Tulsa (Yorktown) |
8,192 |
| 165.122.112.0/20 |
Mci |
Tulsa (Yorktown) |
4,096 |
| 165.122.144.0/21 |
Mci |
Tulsa (Yorktown) |
2,048 |
| 165.122.152.0/21 |
Mci |
Tulsa (Yorktown) |
2,048 |
| 165.122.160.0/19 |
Mci |
Tulsa (Yorktown) |
8,192 |
| 165.122.223.0/24 |
Mci |
Washington D.C. |
256 |
| 165.122.64.0/19 |
Mci |
Tulsa (Yorktown) |
8,192 |
| 166.32.0.0/20 |
Mci |
Ashburn |
4,096 |
| 166.32.128.0/19 |
Mci |
Ashburn |
8,192 |
| 166.32.16.0/20 |
Mci |
Ashburn |
4,096 |
| 166.32.160.0/20 |
Mci |
Ashburn |
4,096 |
| 166.32.240.0/20 |
Mci |
Ashburn |
4,096 |
| 166.32.48.0/21 |
Mci |
Ashburn |
2,048 |
| 166.32.56.0/24 |
Mci |
Washington D.C. |
256 |
| 166.32.57.0/24 |
Mci |
Washington D.C. |
256 |
| 166.32.58.0/23 |
Mci |
Washington D.C. |
512 |
| 166.32.60.0/22 |
Mci |
Dallas |
1,024 |
| 166.33.0.0/21 |
Mci |
Ashburn |
2,048 |
