Home Prefix Lookup209.2.0.0/16

209.2.0.0/16 - BGP Prefix

IPv4not announced RPKI Valid

CIDR

209.2.0.0/16

IP Version

IPv4

Addresses

65.5K

Mask

/16 (255.255.0.0)

Country

🇺🇸 United States

City

Conshohocken

Status

not announced

Allocated

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below.

More-Specific Announcements

21 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
209.2.0.0/19	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	-	2026-10-11
209.2.32.0/21	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	-	2026-10-11
209.2.40.0/22	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	-	2026-10-11
209.2.44.0/23	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	-	2026-10-11
209.2.46.0/24	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	-	2026-10-11
209.2.47.0/24	AS14 COLUMBIA-GW - Columbia University	No ROA	-	2026-10-11
209.2.48.0/22	AS14 COLUMBIA-GW - Columbia University	No ROA	-	2026-10-11
209.2.52.0/22	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	-	2026-10-11
209.2.56.0/21	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	-	2026-10-11
209.2.64.0/18	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	-	2026-10-11
209.2.128.0/19	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	-	2026-10-11
209.2.160.0/20	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	-	2026-10-11
209.2.176.0/21	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	-	2026-10-11
209.2.184.0/24	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	-	2026-10-11
209.2.185.0/24	AS14 COLUMBIA-GW - Columbia University	No ROA	-	2026-10-11
209.2.186.0/23	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	-	2026-10-11
209.2.188.0/22	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	-	2026-10-11
209.2.192.0/20	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	-	2026-10-11
209.2.208.0/20	AS14 COLUMBIA-GW - Columbia University	No ROA	-	2026-10-11
209.2.224.0/20	AS14 COLUMBIA-GW - Columbia University	No ROA	-	2026-10-11
209.2.240.0/20	AS7029 WINDSTREAM - Windstream Communications LLC	Valid	-	2026-10-11

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS7029	Other IRR	MAINT-AS7029	2024-06-18

More Specific Prefixes

Prefix	AS	Country	Status
209.2.0.0/19	AS7029	🇺🇸US	allocated
209.2.32.0/21	AS7029	🇺🇸US	allocated
209.2.40.0/22	AS7029	🇺🇸US	allocated
209.2.44.0/23	AS7029	🇺🇸US	allocated
209.2.46.0/24	AS7029	🇺🇸US	allocated
209.2.47.0/24	AS14	🇺🇸US	allocated
209.2.48.0/22	AS14	🇺🇸US	allocated
209.2.52.0/22	AS7029	🇺🇸US	allocated
209.2.56.0/21	AS7029	🇺🇸US	allocated
209.2.64.0/18	AS7029	🇺🇸US	allocated
209.2.128.0/19	AS7029	🇺🇸US	allocated
209.2.160.0/20	AS7029	🇺🇸US	allocated
209.2.176.0/21	AS7029	🇺🇸US	allocated
209.2.184.0/24	AS7029	🇺🇸US	allocated
209.2.185.0/24	AS14	🇺🇸US	allocated
209.2.186.0/23	AS7029	🇺🇸US	allocated
209.2.188.0/22	AS7029	🇺🇸US	allocated
209.2.192.0/20	AS7029	🇺🇸US	allocated
209.2.208.0/20	AS14	🇺🇸US	allocated
209.2.224.0/20	AS14	🇺🇸US	allocated
209.2.240.0/20	AS7029	🇺🇸US	allocated

Transfer History

Registry transfers of 209.2.0.0/16, blocks inside it, or blocks containing it.

209.2.48.0/22Transfer · 2025-11-20
Windstream Communications LLC
🇺🇸 US ARIN
→
Columbia University
🇺🇸 US ARIN
209.2.47.0/24Transfer · 2025-11-20
Windstream Communications LLC
🇺🇸 US ARIN
→
Columbia University
🇺🇸 US ARIN
209.2.224.0/20Transfer · 2025-11-20
Windstream Communications LLC
🇺🇸 US ARIN
→
Columbia University
🇺🇸 US ARIN
209.2.208.0/20Transfer · 2025-11-20
Windstream Communications LLC
🇺🇸 US ARIN
→
Columbia University
🇺🇸 US ARIN
209.2.185.0/24Transfer · 2025-11-20
Windstream Communications LLC
🇺🇸 US ARIN
→
Columbia University
🇺🇸 US ARIN
209.2.0.0/16M&A · 2019-05-01
PaeTec Communications, Inc.
🇺🇸 US ARIN
→
Windstream Communications LLC
🇺🇸 US ARIN

Date	Resource	From	To	Type
2025-11-20	209.2.48.0/22	Windstream Communications LLC 🇺🇸 US ARIN	Columbia University 🇺🇸 US ARIN	Transfer
2025-11-20	209.2.47.0/24	Windstream Communications LLC 🇺🇸 US ARIN	Columbia University 🇺🇸 US ARIN	Transfer
2025-11-20	209.2.224.0/20	Windstream Communications LLC 🇺🇸 US ARIN	Columbia University 🇺🇸 US ARIN	Transfer
2025-11-20	209.2.208.0/20	Windstream Communications LLC 🇺🇸 US ARIN	Columbia University 🇺🇸 US ARIN	Transfer
2025-11-20	209.2.185.0/24	Windstream Communications LLC 🇺🇸 US ARIN	Columbia University 🇺🇸 US ARIN	Transfer
2019-05-01	209.2.0.0/16	PaeTec Communications, Inc. 🇺🇸 US ARIN	Windstream Communications LLC 🇺🇸 US ARIN	M&A

Geolocation

Country🇺🇸United StatesUS

RegionPennsylvania

CityConshohocken

Coordinates40.0764, -75.2877 ↗

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 transfer marketTransfers published by all five RIRs

API

Open

GEThttps://api.ipctl.io/v1/prefix/209.2.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/209.2.0.0/16" | jq

External Links

RIPEstat