AS21821
Montefiore Medical Center — montefiore.org
Summary
| Country |
 United States
|
| Organization | Montefiore Medical Center |
| Domain | montefiore.org |
| Number of IPv4 | 1,024 |
| Number of IPv6 | 0 |
| AS Type | Business |
| Registry | ARIN |
| Allocated | April 03, 2017 (about 8 years ago) |
| Updated | April 03, 2017 (about 8 years ago) |
IP Ranges
AS21821 announces 4 IPv4 ranges and 0 IPv6 range.
That's a total of 1,024 IPv4 address and 0 IPv6 address.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 144.121.102.0/24 |
Montefiore Medicine Academic Health System, Inc.
|
256 | ARIN | REASSIGNMENT |
| 144.121.104.0/24 |
Montefiore Medicine Academic Health System, Inc.
|
256 | ARIN | REASSIGNMENT |
| 216.255.100.0/24 |
Montefiore Medical Center
|
256 | ARIN | REASSIGNMENT |
| 216.255.101.0/24 |
Montefiore Medical Center
|
256 | ARIN | REASSIGNMENT |
Peers
AS21821 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
AS21821 connects to the global Internet via at least 2 upstream providers. In this setup, AS21821 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS21821 currently has no downstream networks, meaning it does not serve as a transit provider to customer networks.