AS4221
United States Department of Defense (DoD) · mail.mil
United States
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| Field | Value |
|---|---|
| Country |
United States
|
| Website | mail.mil |
| Hosted domains | 0 |
| Number of IPv4 | 0 |
| Number of IPv6 | 2,417,851,639,229,258,349,412,352 |
| ASN type | Government |
| Registry | arin |
| Allocated | 31 years ago on Jan 09, 1995 |
| Updated | a month ago on Sep 12, 2025 |
IP Ranges
There are no known IPv4 addresses belonging to this network
| Netblock | Company |
|---|---|
| 2001:480:52::/48 | High Performance Computing |
| 2001:480:95::/48 | High Performance Computing |
WHOIS Details
ASHandle: AS4221
OrgID: AS4221
ASName: AS4221
ASNumber: AS4221
RegDate: 0000-00-00
Updated: 0000-00-00
TechHandle: AA00-AAAA
Source: AAAA
Hosted Domains
There are no domains currently hosted on this ASN.
Peers
There is 1 peer for this ASN.
| Peers | Name |
|---|---|
| AS668 | United States Department of Defense (DoD) |
Upstreams
There is 1 peer for this ASN.
| upstreams | Name |
|---|---|
| AS668 | United States Department of Defense (DoD) |
Downstreams
There are no downstreams for this ASN.
Pingable IPs
No IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.
Other Pingable IPs
Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.
| IP Address | ASN | Details |
|---|---|---|
| 45.207.52.237 |
0.17ms from Amsterdam,
NL
|
|
| 135.148.41.237 |
1.43ms from Ashburn,
US
|
|
| 206.193.192.125 |
0.81ms from Dallas,
US
|
|
| 174.64.173.45 |
16.52ms from Dallas,
US
|
|
| 27.151.91.157 |
3.77ms from Fuzhou,
CN
|
|
| 2.206.75.173 |
4.20ms from Hamburg,
DE
|
|
| 115.237.87.77 |
5.93ms from Hangzhou,
CN
|
|
| 65.34.183.109 |
7.81ms from Miami,
US
|
|
| 5.100.56.205 |
2.76ms from Nuernberg,
DE
|
|
| 191.243.159.13 |
1.04ms from Rio de Janeiro,
BR
|
|
| 192.165.176.253 |
0.93ms from Singapore,
SG
|
|
| 140.238.142.61 |
0.16ms from Toronto,
CA
|
|
| 83.167.198.93 |
1.71ms from Amsterdam,
NL
|
|
| 37.153.157.29 |
0.43ms from Amsterdam,
NL
|
|
| 78.87.155.61 |
1.15ms from Athens,
GR
|
|
| 60.168.82.221 |
6.69ms from Huai'an,
CN
|
|
| 82.10.223.61 |
6.79ms from London,
GB
|
|
| 76.80.89.141 |
2.10ms from Los Angeles,
US
|
|
| 104.88.181.253 |
0.41ms from Osaka,
JP
|
|
| 178.164.46.93 |
8.62ms from Oslo,
NO
|
|
| 139.129.66.157 |
0.17ms from Qingdao,
CN
|
|
| 103.169.60.29 |
17.65ms from Saint Thomas Mount,
IN
|
|
| 58.126.227.45 |
5.85ms from Seoul,
KR
|
|
| 101.83.179.93 |
6.78ms from Shanghai,
CN
|
|
| 114.47.200.205 |
4.16ms from Taichung,
TW
|
Related Networks
What is an ASN?
Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.
The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS4221 at robtex.
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