Home Prefix Lookup166.128.0.0/9

166.128.0.0/9 - BGP Prefix

IPv4not announced RPKI Valid

CIDR

166.128.0.0/9

IP Version

IPv4

Addresses

8.3M

Mask

/9 (255.128.0.0)

Country

🇺🇸 United States

City

New York

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

32 more-specific announcements on this page, 832 in total

Prefix	Origin AS	RPKI	IRR	Last Seen
166.230.200.0/21	AS29946 UNION-CELL - Union Wireless	No ROA	-	2026-10-12
166.230.208.0/20	AS29946 UNION-CELL - Union Wireless	No ROA	-	2026-10-12
166.230.224.0/19	AS29946 UNION-CELL - Union Wireless	No ROA	-	2026-10-12
166.236.0.0/16	AS6614 USCC-ASN - T-Mobile USA, Inc.	No ROA	-	2026-10-12
166.238.0.0/16	AS26611 AS26611 - COMUNICACION CELULAR S.A. COMCEL S.A.	No ROA	-	2026-10-12
166.238.240.0/20	AS26611 AS26611 - COMUNICACION CELULAR S.A. COMCEL S.A.	No ROA	-	2026-10-12
166.239.0.0/16	AS22394 CELLCO - Verizon Business	Valid	-	2026-10-12
166.239.0.0/18	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.239.64.0/18	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.239.128.0/18	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.239.192.0/18	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.241.0.0/16	AS22394 CELLCO - Verizon Business	Valid	-	2026-10-12
166.241.0.0/18	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.241.64.0/18	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.241.128.0/18	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.241.192.0/18	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.246.0.0/15	AS22394 CELLCO - Verizon Business	Valid	-	2026-10-12
166.246.0.0/16	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.247.0.0/16	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.248.0.0/13	AS22394 CELLCO - Verizon Business	Valid	-	2026-10-12
166.248.0.0/16	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.249.0.0/16	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.250.0.0/16	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.251.0.0/16	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.252.0.0/17	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.252.128.0/17	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.253.0.0/17	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.253.128.0/17	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.254.0.0/17	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.254.128.0/17	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.255.0.0/17	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12
166.255.128.0/17	AS6167 CELLCO-PART - Verizon Business	Valid	-	2026-10-12

Transfer History

Registry transfers of 166.128.0.0/9, blocks inside it, or blocks containing it.

166.231.0.0/16M&A · 2025-09-11
USCC Services, LLC
🇺🇸 US ARIN
→
T-Mobile USA, Inc.
🇺🇸 US ARIN
166.236.0.0/16M&A · 2025-09-11
USCC Services, LLC
🇺🇸 US ARIN
→
T-Mobile USA, Inc.
🇺🇸 US ARIN
166.181.0.0/16M&A · 2025-09-11
USCC Services, LLC
🇺🇸 US ARIN
→
T-Mobile USA, Inc.
🇺🇸 US ARIN
166.221.0.0/16M&A · 2025-09-11
USCC Services, LLC
🇺🇸 US ARIN
→
T-Mobile USA, Inc.
🇺🇸 US ARIN
166.228.0.0/15M&A · 2025-09-11
USCC Services, LLC
🇺🇸 US ARIN
→
T-Mobile USA, Inc.
🇺🇸 US ARIN
166.224.0.0/14M&A · 2025-09-11
USCC Services, LLC
🇺🇸 US ARIN
→
T-Mobile USA, Inc.
🇺🇸 US ARIN
166.222.0.0/15M&A · 2025-09-11
USCC Services, LLC
🇺🇸 US ARIN
→
T-Mobile USA, Inc.
🇺🇸 US ARIN
166.232.0.0/14M&A · 2025-09-11
USCC Services, LLC
🇺🇸 US ARIN
→
T-Mobile USA, Inc.
🇺🇸 US ARIN
166.182.0.0/16M&A · 2025-09-11
USCC Services, LLC
🇺🇸 US ARIN
→
T-Mobile USA, Inc.
🇺🇸 US ARIN
166.238.0.0/16inter-RIRTransfer · 2025-04-07
Wireless Data Service Provider Corporation
🇺🇸 US ARIN
→
COMUNICACIÓN CELULAR S.A. COMCEL S.A.
🇨🇴 CO LACNIC

Date	Resource	From	To	Type
2025-09-11	166.231.0.0/16	USCC Services, LLC 🇺🇸 US ARIN	T-Mobile USA, Inc. 🇺🇸 US ARIN	M&A
2025-09-11	166.236.0.0/16	USCC Services, LLC 🇺🇸 US ARIN	T-Mobile USA, Inc. 🇺🇸 US ARIN	M&A
2025-09-11	166.181.0.0/16	USCC Services, LLC 🇺🇸 US ARIN	T-Mobile USA, Inc. 🇺🇸 US ARIN	M&A
2025-09-11	166.221.0.0/16	USCC Services, LLC 🇺🇸 US ARIN	T-Mobile USA, Inc. 🇺🇸 US ARIN	M&A
2025-09-11	166.228.0.0/15	USCC Services, LLC 🇺🇸 US ARIN	T-Mobile USA, Inc. 🇺🇸 US ARIN	M&A
2025-09-11	166.224.0.0/14	USCC Services, LLC 🇺🇸 US ARIN	T-Mobile USA, Inc. 🇺🇸 US ARIN	M&A
2025-09-11	166.222.0.0/15	USCC Services, LLC 🇺🇸 US ARIN	T-Mobile USA, Inc. 🇺🇸 US ARIN	M&A
2025-09-11	166.232.0.0/14	USCC Services, LLC 🇺🇸 US ARIN	T-Mobile USA, Inc. 🇺🇸 US ARIN	M&A
2025-09-11	166.182.0.0/16	USCC Services, LLC 🇺🇸 US ARIN	T-Mobile USA, Inc. 🇺🇸 US ARIN	M&A
2025-04-07	166.238.0.0/16inter-RIR	Wireless Data Service Provider Corporation 🇺🇸 US ARIN	COMUNICACIÓN CELULAR S.A. COMCEL S.A. 🇨🇴 CO LACNIC	Transfer

View all 68 transfers →

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 transfer marketTransfers published by all five RIRs

API

Open

GEThttps://api.ipctl.io/v1/prefix/166.128.0.0/9

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

curl -s "https://api.ipctl.io/v1/prefix/166.128.0.0/9" | jq

External Links

RIPEstat