AS5671 PBI-NET-BLK - AT&T Enterprises, LLC

🇺🇸

ARINassigned

Announced Prefixes (BGP)

4total

4 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)8,192

Announced (BGP)12,800

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)0

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

RIR

Status

assigned

Allocated

1995-08-10

Announced Prefixes

(BGP)4

Prefix	RPKI	IRR	Last Seen
66.143.174.0/24	No ROA	-	2026-10-11
198.225.128.0/19	No ROA	-	2026-10-11
198.225.144.0/20	No ROA	-	2026-10-11
198.225.158.0/24	No ROA	-	2026-10-11

(RIR)1

Prefix	Country	RIR	Status
198.225.128.0/19	🇺🇸 US	ARIN	allocated

(seen in AS paths)

Networks AS5671 hands its own prefixes to: transit providers, or peers at an exchange.

Registry transfers of AS5671 between organisations.

Date	Resource	From	To	Type
2024-12-05	AS5671-AS5681	AT&T Corp. 🇺🇸 US ARIN	AT&T Enterprises, LLC 🇺🇸 US ARIN	M&A
2018-07-18	AS5671-AS5681	AT&T Internet Services 🇺🇸 US ARIN	AT&T Corp. 🇺🇸 US ARIN	M&A

ASPA

No ASPA

External Links

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS5671 should publish an ASPA object
IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/5671" | jq