Home Prefix Lookup23.163.20.0/24

23.163.20.0/24 - City (AS402935)

IPv4ARINallocatedAS402935CITY-OF-BELGRADE-MT - City RPKI Valid

CIDR

23.163.20.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

Country

🇺🇸 United States

City

Belgrade

RIR

ARIN

Status

allocated

Allocated

2026-08-31

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
23.163.20.0/24	AS402935 CITY-OF-BELGRADE-MT - City	Valid	ARINOther IRR	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
23.163.20.0/24	AS402935	/24	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS402935	ARIN	MNT-CB-1547	2026-10-05
AS402935	Other IRR	MAINT-CHTR-WD	2026-09-14

Origin ASN

AS402935

CITY-OF-BELGRADE-MT - City

Related Prefixes

More prefixes of AS402935

2620:4c:8080::/48

All prefixes of AS402935 →

Geolocation

Country🇺🇸United StatesUS

RegionMontana

CityBelgrade

Coordinates45.7799, -111.1740 ↗

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the ARIN regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/23.163.20.0/24

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

curl -s "https://api.ipctl.io/v1/prefix/23.163.20.0/24" | jq

External Links

RIPEstat