Home Prefix Lookup198.133.19.0/24

198.133.19.0/24 - AT&T Enterprises (AS2685)

IPv4ARINannouncedAS2685ATGS-MMD-AS - AT&T Enterprises, LLC RPKI Valid

CIDR

198.133.19.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

Country

🇺🇸 United States

City

Milford

RIR

ARIN

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
198.133.19.0/24	AS2685 ATGS-MMD-AS - AT&T Enterprises, LLC	Valid	ARINOther IRR	2026-10-12

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
198.133.16.0/20	AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC	Valid	-	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
198.133.19.0/24	AS2685	/24	arin
198.133.16.0/20	AS7018	/20	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS2685	ARIN	MNT-AEL-360	2026-08-14
AS2685	Other IRR	MAINT-AS7132	2023-11-13

Transfer History

Registry transfers of 198.133.19.0/24, blocks inside it, or blocks containing it.

198.133.16.0/20M&A · 2024-12-05
AT&T Corp.
🇺🇸 US ARIN
→
AT&T Enterprises, LLC
🇺🇸 US ARIN
198.133.16.0/20M&A · 2022-09-09
AT&T Global Network Services, LLC
🇺🇸 US ARIN
→
AT&T Corp.
🇺🇸 US ARIN

Date	Resource	From	To	Type
2024-12-05	198.133.16.0/20	AT&T Corp. 🇺🇸 US ARIN	AT&T Enterprises, LLC 🇺🇸 US ARIN	M&A
2022-09-09	198.133.16.0/20	AT&T Global Network Services, LLC 🇺🇸 US ARIN	AT&T Corp. 🇺🇸 US ARIN	M&A

Origin ASN

AS2685

ATGS-MMD-AS - AT&T Enterprises, LLC

Related Prefixes

Covering prefix

198.133.16.0/20AS7018

More prefixes of AS2685

All prefixes of AS2685 →

Geolocation

Country🇺🇸United StatesUS

RegionConnecticut

CityMilford

Coordinates41.2470, -73.0801 ↗

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/198.133.19.0/24

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

curl -s "https://api.ipctl.io/v1/prefix/198.133.19.0/24" | jq

External Links

RIPEstat