AS15147
DEPARTMENT OF HOMELAND SECURITY
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Government allocation +8
- Trust score 73 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 64.69.48.0/20 | 4.1K |
0.2%
|
DEPARTMENT OF HOMELAND SECURITY | US | — | — |
| 173.255.48.0/20 | 4.1K |
2.0%
|
DEPARTMENT OF HOMELAND SECURITY | US | Maryland | Clinton |
| 216.81.80.0/20 | 4.1K |
10.7%
|
DEPARTMENT OF HOMELAND SECURITY | US | — | — |
| 161.214.8.0/22 | 1.0K |
0.0%
|
DEPARTMENT OF HOMELAND SECURITY | US | — | — |
| 161.214.122.0/23 | 512 |
0.0%
|
DEPARTMENT OF HOMELAND SECURITY | US | — | — |
| 161.214.126.0/23 | 512 |
0.0%
|
DEPARTMENT OF HOMELAND SECURITY | US | — | — |
| 161.214.7.0/24 | 256 |
0.0%
|
DEPARTMENT OF HOMELAND SECURITY | US | — | — |
| 161.214.17.0/24 | 256 |
0.0%
|
DEPARTMENT OF HOMELAND SECURITY | US | — | — |
| 161.214.18.0/24 | 256 |
0.0%
|
DEPARTMENT OF HOMELAND SECURITY | US | — | — |
| 161.214.183.0/24 | 256 |
0.0%
|
DEPARTMENT OF HOMELAND SECURITY | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS15147 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 161.214.7.0/24 | 21,315 | 2026-10-13 19:23:40 |
| 161.214.8.0/22 | 19,244 | 2026-10-13 19:23:40 |
| 161.214.183.0/24 | 19,038 | 2026-10-13 19:24:18 |
| 216.81.80.0/21 | 18,346 | 2026-10-13 19:16:18 |
| 64.69.48.0/20 | 18,022 | 2026-10-13 19:13:14 |
| 173.255.48.0/21 | 18,010 | 2026-10-13 19:15:37 |
| 173.255.56.0/21 | 17,837 | 2026-10-13 19:15:37 |
| 216.81.88.0/21 | 17,751 | 2026-10-13 19:13:14 |
| 161.214.10.0/24 | 14,236 | 2026-10-13 19:24:18 |
| 161.214.9.0/24 | 14,226 | 2026-10-13 19:24:18 |
| 161.214.18.0/24 | 12,476 | 2026-10-13 19:23:40 |
| 161.214.122.0/24 | 12,158 | 2026-10-13 19:23:40 |
| 161.214.123.0/24 | 11,316 | 2026-10-13 19:23:40 |
| 161.214.182.0/24 | 10,587 | 2026-07-31 01:38:53 |
| 161.214.126.0/24 | 10,122 | 2026-10-13 19:23:40 |
| 161.214.17.0/24 | 7,903 | 2026-10-13 19:24:18 |
| 161.214.127.0/24 | 7,087 | 2026-10-13 19:24:18 |
| 161.214.0.0/16 | 4,926 | 2026-08-03 23:50:28 |
Frequently Asked Questions
What is AS15147?
AS15147 is an Autonomous System Number assigned to DEPARTMENT OF HOMELAND SECURITY. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS15147 announce?
AS15147 announces 15.4K IPv4 addresses distributed across 10 routed CIDR prefixes. The network is registered in United States.
Who operates AS15147?
AS15147 is operated by DEPARTMENT OF HOMELAND SECURITY. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS15147 registered in?
AS15147 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
