163.191.0.0/17

🇺🇸

CIDR

163.191.0.0/17

IP Version

IPv4

Addresses

32.7K

Mask

/17 (255.255.128.0)

Country

🇺🇸 United States

City

Springfield (Vinegar Hill)

RIR

ARIN

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
163.191.0.0/17	AS6325ILLINOIS-CENTURY - Illinois Century Network	No ROA	RADB	6/1/2026

14 less-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
163.191.32.0/19	AS6325ILLINOIS-CENTURY - Illinois Century Network	No ROA	—	6/1/2026
163.191.64.0/19	AS6325ILLINOIS-CENTURY - Illinois Century Network	No ROA	—	6/1/2026
163.191.96.0/20	AS6325ILLINOIS-CENTURY - Illinois Century Network	No ROA	—	6/1/2026
163.191.112.0/21	AS6325ILLINOIS-CENTURY - Illinois Century Network	No ROA	—	6/1/2026
163.191.0.0/21	AS6325ILLINOIS-CENTURY - Illinois Century Network	No ROA	—	6/1/2026
163.191.8.0/22	AS6325ILLINOIS-CENTURY - Illinois Century Network	No ROA	—	6/1/2026
163.191.120.0/22	AS6325ILLINOIS-CENTURY - Illinois Century Network	No ROA	—	6/1/2026
163.191.12.0/23	AS6325ILLINOIS-CENTURY - Illinois Century Network	No ROA	—	6/1/2026
163.191.14.0/24	AS6325ILLINOIS-CENTURY - Illinois Century Network	No ROA	—	6/1/2026
163.191.125.0/24	AS6325ILLINOIS-CENTURY - Illinois Century Network	No ROA	—	6/1/2026
163.191.126.0/24	AS6325ILLINOIS-CENTURY - Illinois Century Network	No ROA	—	6/1/2026
163.191.124.0/24	AS6325ILLINOIS-CENTURY - Illinois Century Network	No ROA	—	6/1/2026
163.191.111.0/24	AS55057CHI-ILAG - Office of the Illinois Attorney General	No ROA	—	6/1/2026
163.191.110.0/24	AS55057CHI-ILAG - Office of the Illinois Attorney General	No ROA	—	6/1/2026

Origin	Registry	Maintainer	Modified
AS6325	RADB	MAINT-AS6325	11/25/2024

Origin ASN

Geolocation

Country🇺🇸United StatesUS

RegionIllinois

CitySpringfield (Vinegar Hill)

API

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

curl -s "https://api.ipctl.io/v1/prefix/163.191.0.0/17" | jq

External Links