Home Prefix Lookup23.245.0.0/20

23.245.0.0/20 - Breezeline (AS11776)

IPv4ARINannouncedAS11776ATLANTICBB-JOHNSTOWN - Breezeline RPKI Valid

CIDR

23.245.0.0/20

IP Version

IPv4

Addresses

Mask

/20 (255.255.240.0)

Country

🇺🇸 United States

City

Londonderry

RIR

ARIN

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
23.245.0.0/20	AS11776 ATLANTICBB-JOHNSTOWN - Breezeline	Valid	ARINOther IRR	2026-10-11

More-Specific Announcements

6 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
23.245.4.0/23	AS11776 ATLANTICBB-JOHNSTOWN - Breezeline	Valid	-	2026-10-11
23.245.6.0/23	AS11776 ATLANTICBB-JOHNSTOWN - Breezeline	Valid	-	2026-10-11
23.245.8.0/23	AS11776 ATLANTICBB-JOHNSTOWN - Breezeline	Valid	-	2026-10-11
23.245.11.0/24	AS11776 ATLANTICBB-JOHNSTOWN - Breezeline	Valid	-	2026-10-11
23.245.12.0/23	AS11776 ATLANTICBB-JOHNSTOWN - Breezeline	Valid	-	2026-10-11
23.245.14.0/23	AS11776 ATLANTICBB-JOHNSTOWN - Breezeline	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
23.245.0.0/20	AS11776	/20	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS11776	ARIN	MNT-ATLAN-19	2026-06-16
AS11776	Other IRR	MAINT-AS11776	2023-11-13

Transfer History

Registry transfers of 23.245.0.0/20, blocks inside it, or blocks containing it.

23.244.0.0/15Transfer · 2020-12-30
Enzu Inc
🇺🇸 US ARIN
→
Atlantic Broadband Finance, LLC
🇺🇸 US ARIN

Date	Resource	From	To	Type
2020-12-30	23.244.0.0/15	Enzu Inc 🇺🇸 US ARIN	Atlantic Broadband Finance, LLC 🇺🇸 US ARIN	Transfer

Origin ASN

AS11776

ATLANTICBB-JOHNSTOWN - Breezeline

Related Prefixes

More prefixes of AS11776

All prefixes of AS11776 →

Geolocation

Country🇺🇸United StatesUS

RegionNew Hampshire

CityLondonderry

Coordinates42.8651, -71.3739 ↗

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/23.245.0.0/20

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

curl -s "https://api.ipctl.io/v1/prefix/23.245.0.0/20" | jq

External Links

RIPEstat