IP / ASN / Domain Lookup
IP Lookup Result
IP Address
199.21.28.0
Location
United States,Pennsylvania,Philadelphia
ASN
Company
ENT
Cerner Corporation
Longitude
-75.134
-75.134
Latitude
40.0076
40.0076
Native IP
DataCenter
30%Risk Score
30% Risk Score
IP Address (Decimal)
3340049408
Latency
US
-
HK
-
CA
-
GB
-
DE
-
AU
-
ASN History
ASN History | Network | AS Organization | Country | First Seen | Last Seen |
|---|---|---|---|---|---|
| 199.21.16.0/20 | IDC Zayo Bandwidth | United States | 📅 2023-09-30 07:07 | 📅 2023-10-01 03:57 | |
| 199.21.28.0/22 | ISP AT&T Enterprises, LLC | United States | 📅 2018-06-01 22:48 | 📅 2023-09-27 04:22 | |
| 199.21.28.0/22 | ISP AT&T Enterprises, LLC | United States | 📅 2018-01-02 02:28 | 📅 2018-08-11 03:54 | |
| 199.0.0.0/8 | ISP Swisscom (Schweiz) AG | Switzerland | 📅 2003-08-26 16:18 | 📅 2003-09-22 21:48 |
Company History
Company History | Network | First Seen | Last Seen |
|---|---|---|---|
ENT NET199 | 199.0.0.0/8 | 📅 1993-05-01 08:00 | 📅 2025-10-27 08:44 |
ISP NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 199.16.106.0/13 | 📅 2025-03-03 22:53 | 📅 2025-10-27 05:34 |
ENT CERNER-HS-2 | 199.21.16.0/20 | 📅 1993-10-06 08:00 | 📅 2025-10-20 00:47 |
Registration History
Status | Network | Registry | Country | First Seen | Last Seen |
|---|---|---|---|---|---|
| 199.0.0.0/8 |  ARIN | -- | 📅 1993-05-01 08:00 | 📅 2025-10-27 08:44 | |
| 199.16.106.0/13 |  RIPE | European Union | 📅 2025-03-03 22:53 | 📅 2025-10-27 05:34 | |
| 199.21.16.0/20 | ARIN | -- | 📅 1993-10-06 08:00 | 📅 2025-10-20 00:47 |
