Home Prefix Lookup209.142.128.0/18

209.142.128.0/18 - CenturyLink Communications (AS209)

IPv4ARINallocatedAS209CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLCNo ROA

CIDR

209.142.128.0/18

IP Version

IPv4

Addresses

16.3K

Mask

/18 (255.255.192.0)

Country

🇺🇸 United States

City

New York

RIR

ARIN

Status

allocated

Allocated

1997-09-12

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
209.142.128.0/18	AS209 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC	No ROA	-	2026-10-12

More-Specific Announcements

8 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
209.142.128.0/19	AS22561 CENTURYLINK-LEGACY-LIGHTCORE - CenturyLink Communications, LLC	No ROA	-	2026-10-12
209.142.130.0/24	AS22561 CENTURYLINK-LEGACY-LIGHTCORE - CenturyLink Communications, LLC	No ROA	-	2026-10-12
209.142.159.0/24	AS19901 BRIGHTSPEED - Brightspeed	No ROA	-	2026-10-12
209.142.160.0/19	AS22561 CENTURYLINK-LEGACY-LIGHTCORE - CenturyLink Communications, LLC	No ROA	-	2026-10-12
209.142.160.0/22	AS22561 CENTURYLINK-LEGACY-LIGHTCORE - CenturyLink Communications, LLC	No ROA	-	2026-10-12
209.142.164.0/24	AS22561 CENTURYLINK-LEGACY-LIGHTCORE - CenturyLink Communications, LLC	No ROA	-	2026-10-12
209.142.165.0/24	AS22561 CENTURYLINK-LEGACY-LIGHTCORE - CenturyLink Communications, LLC	No ROA	-	2026-10-12
209.142.187.0/24	AS209 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC	No ROA	-	2026-10-12

Transfer History

Registry transfers of 209.142.128.0/18, blocks inside it, or blocks containing it.

209.142.128.0/18M&A · 2018-08-14
CENTURYLINK, INC.
🇺🇸 US ARIN
→
CenturyLink Communications, LLC
🇺🇸 US ARIN
209.142.128.0/18M&A · 2018-04-26
CenturyTel Internet Holdings, Inc.
🇺🇸 US ARIN
→
CENTURYLINK, INC.
🇺🇸 US ARIN

Date	Resource	From	To	Type
2018-08-14	209.142.128.0/18	CENTURYLINK, INC. 🇺🇸 US ARIN	CenturyLink Communications, LLC 🇺🇸 US ARIN	M&A
2018-04-26	209.142.128.0/18	CenturyTel Internet Holdings, Inc. 🇺🇸 US ARIN	CENTURYLINK, INC. 🇺🇸 US ARIN	M&A

Origin ASN

AS209

CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC

Related Prefixes

More prefixes of AS209

All prefixes of AS209 →

Geolocation

Country🇺🇸United StatesUS

RegionNew York

CityNew York

Coordinates40.7128, -74.0060 ↗

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/209.142.128.0/18

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

curl -s "https://api.ipctl.io/v1/prefix/209.142.128.0/18" | jq

External Links

RIPEstat