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Autonomous System details for AS21857

AS21857
ProHealth Care Inc. • phci.org

AS21857 — ProHealth Care Inc.

AS Name
PROHEALTH-CARE
Country
United States (US)
Website
Number of IPv4
2,304
Number of IPv6
0
ASN type
Business
Status
Assigned
Registry
ARIN
Allocated
June 29, 2001
Last updated
February 05, 2019

IP Ranges

6 IPv4 prefixes
Prefix Company Number of IPs
147.185.116.0/22 METROPOLITAN MUSEUM OF ART 1,024
147.185.116.0/24 METROPOLITAN MUSEUM OF ART 256
147.185.117.0/24 METROPOLITAN MUSEUM OF ART 256
147.185.118.0/24 METROPOLITAN MUSEUM OF ART 256
147.185.119.0/24 METROPOLITAN MUSEUM OF ART 256
207.67.109.0/24 MTN Business SA Customer 256

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS21857

0 peers

AS21857 has no peers recorded.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS21857

1 upstreams

AS21857 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS21857 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS21857

0 downstreams

AS21857 has no downstreams recorded.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.

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