AS3527
National Institutes of Health — nih.gov
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Summary
| Country |
 United States
|
| Organization | National Institutes of Health |
| Domain | nih.gov |
| Number of IPv4 | 336,640 |
| 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 9 IPv4 ranges and 2 IPv6 ranges.
That's a total of 336,640 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 |
| 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 |
| 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 does not have any direct peering agreements. Instead, its global connectivity is achieved through transit providers. While this setup ensures comprehensive reach, future peering could reduce latency and optimize route efficiency.
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 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS3527's role in extending Internet access beyond its own infrastructure.