Home Prefix Lookup198.20.0.0/21

198.20.0.0/21 - Charter Communications (AS11426)

IPv4ARINallocatedAS11426TWC-11426-CAROLINAS - Charter Communications Inc RPKI Valid

CIDR

198.20.0.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇺🇸 United States

City

Greenwood Village

RIR

ARIN

Status

allocated

Allocated

2012-09-14

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
198.20.0.0/21	AS11426 TWC-11426-CAROLINAS - Charter Communications Inc	Valid	Other IRR	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
198.20.0.0/21	AS0	/21	arin
198.20.0.0/21	AS11426	/21	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS11426	Other IRR	MAINT-RR	2026-03-06

Transfer History

Registry transfers of 198.20.0.0/21, blocks inside it, or blocks containing it.

198.20.0.0/21M&A · 2018-11-26
Time Warner Cable Internet LLC
🇺🇸 US ARIN
→
Charter Communications Inc
🇺🇸 US ARIN
198.20.0.0/21M&A · 2016-12-08
Dukenet Communications, LLC
🇺🇸 US ARIN
→
Time Warner Cable Internet LLC
🇺🇸 US ARIN

Date	Resource	From	To	Type
2018-11-26	198.20.0.0/21	Time Warner Cable Internet LLC 🇺🇸 US ARIN	Charter Communications Inc 🇺🇸 US ARIN	M&A
2016-12-08	198.20.0.0/21	Dukenet Communications, LLC 🇺🇸 US ARIN	Time Warner Cable Internet LLC 🇺🇸 US ARIN	M&A

Origin ASN

AS11426

TWC-11426-CAROLINAS - Charter Communications Inc

Related Prefixes

More prefixes of AS11426

All prefixes of AS11426 →

Geolocation

Country🇺🇸United StatesUS

RegionColorado

CityGreenwood Village

Coordinates39.6002, -104.8900 ↗

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/198.20.0.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/198.20.0.0/21" | jq

External Links

RIPEstat