Home Prefix Lookup206.51.240.0/21

206.51.240.0/21 - DEFT.COM (AS23352)

IPv4ARINallocatedAS23352SERVERCENTRAL - DEFT.COMNo ROA

CIDR

206.51.240.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇺🇸 United States

City

Chicago

RIR

ARIN

Status

allocated

Allocated

2015-04-07

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
206.51.240.0/21	AS23352 SERVERCENTRAL - DEFT.COM	No ROA	ARIN	2026-10-12

More-Specific Announcements

1 more-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
206.51.242.0/24	AS40509 FLY - Fly.io, Inc.	Valid	-	2026-10-12

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS23352	ARIN	MNT-SL-2063	2026-03-23
AS18725	Other IRR	MAINT-AS3257	2023-11-13
AS198949	Other IRR	MAINT-AS198949	2023-11-13

Transfer History

Registry transfers of 206.51.240.0/21, blocks inside it, or blocks containing it.

206.51.240.0/21M&A · 2024-11-15
Server Central Network
🇺🇸 US ARIN
→
DEFT.COM
🇺🇸 US ARIN

Date	Resource	From	To	Type
2024-11-15	206.51.240.0/21	Server Central Network 🇺🇸 US ARIN	DEFT.COM 🇺🇸 US ARIN	M&A

Origin ASN

AS23352

SERVERCENTRAL - DEFT.COM

Related Prefixes

More prefixes of AS23352

All prefixes of AS23352 →

Geolocation

Country🇺🇸United StatesUS

RegionIllinois

CityChicago

Coordinates41.8781, -87.6298 ↗

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/206.51.240.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/206.51.240.0/21" | jq

External Links

RIPEstat