209.51.32.0/20 - BGP Prefix

IPv4not announced RPKI Valid

CIDR

209.51.32.0/20

IP Version

IPv4

Addresses

Mask

/20 (255.255.240.0)

Country

🇺🇸 United States

City

Boston

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.

4 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
209.51.32.0/23	AS54651 BLACK-DUCK-SOFTWARE-01 - Black Duck Software, Inc.	No ROA	-	2026-10-11
209.51.32.0/24	AS54651 BLACK-DUCK-SOFTWARE-01 - Black Duck Software, Inc.	No ROA	-	2026-10-11
209.51.39.0/24	AS16509 AMAZON-02 - Amazon.com, Inc.	Valid	-	2026-10-11
209.51.40.0/21	AS27501 ISPNET-AS - isp.net	Valid	-	2026-10-11

Prefix	AS	Country	Status
209.51.32.0/21	AS54651	🇺🇸US	allocated
209.51.40.0/21	AS27501	🇺🇸US	allocated

Registry transfers of 209.51.32.0/20, blocks inside it, or blocks containing it.

Date	Resource	From	To	Type
2024-12-04	209.51.32.0/21	Intis Telecom Inc. 🇺🇸 US ARIN	Black Duck Software, Inc. 🇺🇸 US ARIN	Transfer
2024-11-18	209.51.40.0/21	LV.Net 🇺🇸 US ARIN	isp.net 🇺🇸 US ARIN	M&A
2023-03-22	209.51.32.0/21	Helm 🇺🇸 US ARIN	Intis Telecom Inc. 🇺🇸 US ARIN	Transfer
2020-05-29	209.51.40.0/21	Riverside Amber Crest, LLC 🇺🇸 US ARIN	LasVegas.Net LLC 🇺🇸 US ARIN	Transfer
2020-03-31	209.51.32.0/21	Riverside Amber Crest, LLC 🇺🇸 US ARIN	Helm 🇺🇸 US ARIN	Transfer
2019-07-30	209.51.32.0/20	SURENET INC. 🇺🇸 US ARIN	Riverside Amber Crest LLC 🇺🇸 US ARIN	M&A

Geolocation

Country🇺🇸United StatesUS

RegionMassachusetts

CityBoston

API

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

curl -s "https://api.ipctl.io/v1/prefix/209.51.32.0/20" | jq

External Links