Home Prefix Lookup205.187.0.0/17

205.187.0.0/17 - BGP Prefix

IPv4ARINallocated RPKI Invalid

CIDR

205.187.0.0/17

IP Version

IPv4

Addresses

32.7K

Mask

/17 (255.255.128.0)

Country

🇺🇸 United States

City

Atlanta (Midtown Atlanta)

RIR

ARIN

Status

allocated

Allocated

2024-11-25

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

1 more-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
205.187.33.0/24	AS226 LOS-NETTOS-AS - Los Nettos	Invalid	-	2026-10-24

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
205.187.0.0/17	AS3356	/17	arin

Transfer History

Registry transfers of 205.187.0.0/17, blocks inside it, or blocks containing it.

205.187.96.0/19Transfer · 2024-11-25
Amazon.com, Inc.
🇺🇸 US ARIN
→
Level 3 Parent, LLC
🇺🇸 US ARIN
205.187.64.0/20Transfer · 2024-11-25
Amazon.com, Inc.
🇺🇸 US ARIN
→
Level 3 Parent, LLC
🇺🇸 US ARIN
205.187.48.0/20Transfer · 2024-11-25
Amazon.com, Inc.
🇺🇸 US ARIN
→
Level 3 Parent, LLC
🇺🇸 US ARIN
205.187.0.0/19Transfer · 2024-11-25
Amazon.com, Inc.
🇺🇸 US ARIN
→
Level 3 Parent, LLC
🇺🇸 US ARIN
205.187.96.0/19Transfer · 2024-03-26
Windstream Communications LLC
🇺🇸 US ARIN
→
Amazon.com, Inc.
🇺🇸 US ARIN
205.187.64.0/20Transfer · 2024-03-26
Windstream Communications LLC
🇺🇸 US ARIN
→
Amazon.com, Inc.
🇺🇸 US ARIN
205.187.48.0/20Transfer · 2024-03-26
Windstream Communications LLC
🇺🇸 US ARIN
→
Amazon.com, Inc.
🇺🇸 US ARIN
205.187.0.0/19Transfer · 2024-03-26
Windstream Communications LLC
🇺🇸 US ARIN
→
Amazon.com, Inc.
🇺🇸 US ARIN
205.187.96.0/19M&A · 2018-09-18
Earthlink, Inc.
🇺🇸 US ARIN
→
Windstream Communications LLC
🇺🇸 US ARIN
205.187.64.0/20M&A · 2018-09-18
Earthlink, Inc.
🇺🇸 US ARIN
→
Windstream Communications LLC
🇺🇸 US ARIN

Date	Resource	From	To	Type
2024-11-25	205.187.96.0/19	Amazon.com, Inc. 🇺🇸 US ARIN	Level 3 Parent, LLC 🇺🇸 US ARIN	Transfer
2024-11-25	205.187.64.0/20	Amazon.com, Inc. 🇺🇸 US ARIN	Level 3 Parent, LLC 🇺🇸 US ARIN	Transfer
2024-11-25	205.187.48.0/20	Amazon.com, Inc. 🇺🇸 US ARIN	Level 3 Parent, LLC 🇺🇸 US ARIN	Transfer
2024-11-25	205.187.0.0/19	Amazon.com, Inc. 🇺🇸 US ARIN	Level 3 Parent, LLC 🇺🇸 US ARIN	Transfer
2024-03-26	205.187.96.0/19	Windstream Communications LLC 🇺🇸 US ARIN	Amazon.com, Inc. 🇺🇸 US ARIN	Transfer
2024-03-26	205.187.64.0/20	Windstream Communications LLC 🇺🇸 US ARIN	Amazon.com, Inc. 🇺🇸 US ARIN	Transfer
2024-03-26	205.187.48.0/20	Windstream Communications LLC 🇺🇸 US ARIN	Amazon.com, Inc. 🇺🇸 US ARIN	Transfer
2024-03-26	205.187.0.0/19	Windstream Communications LLC 🇺🇸 US ARIN	Amazon.com, Inc. 🇺🇸 US ARIN	Transfer
2018-09-18	205.187.96.0/19	Earthlink, Inc. 🇺🇸 US ARIN	Windstream Communications LLC 🇺🇸 US ARIN	M&A
2018-09-18	205.187.64.0/20	Earthlink, Inc. 🇺🇸 US ARIN	Windstream Communications LLC 🇺🇸 US ARIN	M&A

View all 14 transfers →

Geolocation

Country🇺🇸United StatesUS

RegionGeorgia

CityAtlanta (Midtown Atlanta)

Coordinates33.7924, -84.3856 ↗

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/205.187.0.0/17

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

curl -s "https://api.ipctl.io/v1/prefix/205.187.0.0/17" | jq

External Links

RIPEstat