206.203.64.0/18

🇺🇸

CIDR

206.203.64.0/18

IP Version

IPv4

Addresses

16.3K

Mask

/18 (255.255.192.0)

Country

🇺🇸 United States

City

Irving

RIR

ARIN

Status

allocated

Allocated

8/2/1995

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
206.203.64.0/18	AS10599MCKESSON - McKesson Corp.	No ROA	—	6/1/2026

16 less-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
206.203.123.0/24	AS8075MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	Valid	—	6/1/2026
206.203.88.0/24	AS8075MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	Valid	—	6/1/2026
206.203.89.0/24	AS8075MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	Valid	—	6/1/2026
206.203.90.0/24	AS8075MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	Valid	—	6/1/2026
206.203.91.0/24	AS8075MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	Valid	—	6/1/2026
206.203.92.0/24	AS8075MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	Valid	—	6/1/2026
206.203.93.0/24	AS8075MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	Valid	—	6/1/2026
206.203.78.0/24	AS10599MCKESSON - McKesson Corp.	No ROA	—	6/1/2026
206.203.73.0/24	AS10599MCKESSON - McKesson Corp.	No ROA	—	6/1/2026
206.203.74.0/24	AS10599MCKESSON - McKesson Corp.	No ROA	—	6/1/2026
206.203.65.0/24	AS10599MCKESSON - McKesson Corp.	No ROA	—	6/1/2026
206.203.67.0/24	AS10599MCKESSON - McKesson Corp.	No ROA	—	6/1/2026
206.203.69.0/24	AS10599MCKESSON - McKesson Corp.	No ROA	—	6/1/2026
206.203.71.0/24	AS10599MCKESSON - McKesson Corp.	No ROA	—	6/1/2026
206.203.81.0/24	AS27451USO-ASN - US Oncology, Inc.	No ROA	—	6/1/2026
206.203.80.0/24	AS27451USO-ASN - US Oncology, Inc.	No ROA	—	6/1/2026

Origin	Registry	Maintainer	Modified
AS19842	RADB	MAINT-AS1828	11/13/2023

Origin ASN

Geolocation

Country🇺🇸United StatesUS

RegionTexas

CityIrving

API

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/206.203.64.0/18" | jq

External Links