AS3527
National Institutes of Health — nih.gov
Summary
| Country |
 United States
|
| Organization | National Institutes of Health |
| Domain | nih.gov |
| Number of IPv4 | 337,664 |
| Number of IPv6 | 3.4817× 1026 |
| AS Type | Government |
| Registry | ARIN |
| Allocated | April 07, 1994 (about 31 years ago) |
| Updated | October 28, 2022 (about 2 years ago) |
IP Ranges
AS3527 announces 13 IPv4 ranges and 2 IPv6 ranges.
That's a total of 337,664 IPv4 addresses and 3.4817× 1026 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 128.231.0.0/16 |
National Institutes of Health
|
65,536 | ARIN | ALLOCATION |
| 128.231.3.0/24 |
National Institutes of Health
|
256 | ARIN | ALLOCATION |
| 128.231.245.0/24 |
National Institutes of Health
|
256 | ARIN | ALLOCATION |
| 137.187.0.0/16 |
National Institutes of Health
|
65,536 | ARIN | ALLOCATION |
| 156.40.0.0/16 |
National Institutes of Health
|
65,536 | ARIN | ALLOCATION |
| 157.98.0.0/16 |
National Institute of Environmental Health Sciences
|
65,536 | ARIN | ALLOCATION |
| 162.99.224.0/19 |
HRSA
|
8,192 | ARIN | REASSIGNMENT |
| 165.112.0.0/16 |
National Institutes of Health
|
65,536 | ARIN | ALLOCATION |
| 165.112.137.0/24 |
National Institutes of Health
|
256 | ARIN | ALLOCATION |
| 165.112.138.0/24 |
National Institutes of Health
|
256 | ARIN | ALLOCATION |
| 192.231.145.0/24 |
National Institutes of Health
|
256 | ARIN | ALLOCATION |
| 192.231.146.0/24 |
National Institutes of Health
|
256 | ARIN | ALLOCATION |
| 192.231.147.0/24 |
National Institutes of Health
|
256 | ARIN | ALLOCATION |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2607:f220:400::/40 |
National Institutes of Health
|
3.0949× 1026 | ARIN | REALLOCATION |
| 2607:f220:400::/43 |
National Institutes of Health
|
3.8686× 1025 | ARIN | REALLOCATION |
Peers
AS3527 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.
Upstreams
AS3527 connects to the global Internet via at least 2 upstream providers. In this setup, AS3527 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS3527 currently has no downstream networks, meaning it does not serve as a transit provider to customer networks.