Home Prefix Lookup209.223.0.0/16

209.223.0.0/16 - CenturyLink Communications (AS3561)

IPv4ARINallocatedAS3561CENTURYLINK-LEGACY-SAVVIS - CenturyLink Communications, LLCNo ROA

CIDR

209.223.0.0/16

IP Version

IPv4

Addresses

65.5K

Mask

/16 (255.255.0.0)

Country

🇺🇸 United States

City

Ashburn

RIR

ARIN

Status

allocated

Allocated

1998-04-15

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
209.223.0.0/16	AS3561 CENTURYLINK-LEGACY-SAVVIS - CenturyLink Communications, LLC	No ROA	-	2026-10-13

Transfer History

Registry transfers of 209.223.0.0/16, blocks inside it, or blocks containing it.

209.223.0.0/16M&A · 2018-11-15
Savvis
🇺🇸 US ARIN
→
CenturyLink Communications, LLC
🇺🇸 US ARIN

Date	Resource	From	To	Type
2018-11-15	209.223.0.0/16	Savvis 🇺🇸 US ARIN	CenturyLink Communications, LLC 🇺🇸 US ARIN	M&A

Origin ASN

AS3561

CENTURYLINK-LEGACY-SAVVIS - CenturyLink Communications, LLC

Related Prefixes

More prefixes of AS3561

All prefixes of AS3561 →

Geolocation

Country🇺🇸United StatesUS

RegionVirginia

CityAshburn

Coordinates39.0438, -77.4874 ↗

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/209.223.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/209.223.0.0/16" | jq

External Links

RIPEstat