Home Prefix Lookup199.21.100.0/23

199.21.100.0/23 - BGP Prefix

IPv4ARINnot announced RPKI Valid

CIDR

199.21.100.0/23

IP Version

IPv4

Addresses

512

Mask

/23 (255.255.254.0)

Country

🇺🇸 United States

City

Bridgewater

RIR

ARIN

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 currently announced in BGP. See covering prefix below.

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
199.21.100.0/22	AS399353 NETAFY-INC - Netafy, Inc.	Valid	-	2026-10-17

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
199.21.100.0/22	AS399353	/24	arin

Transfer History

Registry transfers of 199.21.100.0/23, blocks inside it, or blocks containing it.

199.21.100.0/23M&A · 2025-10-20
Northern Community Investment Corporation
🇺🇸 US ARIN
→
Netafy, Inc.
🇺🇸 US ARIN
199.21.100.0/22M&A · 2023-12-13
Wireless Linc
🇺🇸 US ARIN
→
Northern Community Investment Corporation
🇺🇸 US ARIN

Date	Resource	From	To	Type
2025-10-20	199.21.100.0/23	Northern Community Investment Corporation 🇺🇸 US ARIN	Netafy, Inc. 🇺🇸 US ARIN	M&A
2023-12-13	199.21.100.0/22	Wireless Linc 🇺🇸 US ARIN	Northern Community Investment Corporation 🇺🇸 US ARIN	M&A

Related Prefixes

Covering prefix

199.21.100.0/22AS399353

Geolocation

Country🇺🇸United StatesUS

RegionMassachusetts

CityBridgewater

Coordinates41.9614, -70.9739 ↗

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/199.21.100.0/23

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

curl -s "https://api.ipctl.io/v1/prefix/199.21.100.0/23" | jq

External Links

RIPEstat