Home ASN LookupAS7287

AS7287 PBI-NET-BLK2 - AT&T Enterprises, LLC

ASPA Published

Announced Prefixes (BGP)

624total

446 IPv4178 IPv6

IPv4 Addresses

Allocated (RIR)256

Announced (BGP)461,056

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)3.9×10²⁸

Prefix Limit (IPv4)

1,000

Prefix Limit (IPv6)

1,000

Allocated

Routing hygiene

Score 25/100 · Medium risk

RPKI ROA coverage

92.5%

11 prefixes RPKI invalid

IRR route objects

86.4%

64 prefixes registered for another origin

Hijack signals

11 announced against others' ROAs, 0 own announced by others

Upstreams

diversity 0/100

Only one upstream seen in the AS paths of its routes
Announces 11 prefixes that RPKI assigns to another network (possible hijack or misconfiguration)
8% of announced prefixes (47 of 624) have no valid ROA, 11 of them RPKI invalid
14% of announced prefixes (85 of 624) have no IRR route object for this ASN

Based on 624 announced prefixes, updated daily (2026-10-23). How the score works · RPKI explained

Announced Prefixes

(BGP)624

Prefix	RPKI	IRR	Last Seen
12.226.78.0/23	No ROA	-	2026-10-26
64.162.40.0/23	Valid	ARIN	2026-10-26
64.162.42.0/23	Valid	ARIN	2026-10-26
64.162.44.0/23	Valid	ARIN	2026-10-26
64.162.46.0/23	Valid	ARIN	2026-10-26
64.162.104.0/23	Valid	ARIN	2026-10-26
64.162.106.0/23	Valid	ARIN	2026-10-26
64.162.108.0/22	Valid	ARIN	2026-10-26
64.162.240.0/22	Valid	ARIN	2026-10-26
64.162.244.0/22	Valid	ARIN	2026-10-26

1-10 of 624

1 / 63

Allocated Prefixes

(RIR)1

Prefix	Country	RIR	Status
199.4.240.0/24	🇺🇸 US	ARIN	allocated

All 624 announced prefixes of AS7287 →

Upstream Providers(1)

ASN	Name
AS7018	🇺🇸ATT-INTERNET4 - AT&T Enterprises, LLC

BGP Neighbours

(seen in AS paths)

Upstreams (1)

Networks AS7287 hands its own prefixes to: transit providers, or peers at an exchange.

AS7018AT&T Enterprises624

Downstreams (1)

Networks whose own prefixes AS7287 passes on: usually its customers.

AS13965AT&T Enterprises11

Transfer History

Registry transfers of AS7287 between organisations.

AS7286-AS7288M&A · 2024-12-05
AT&T Corp.
🇺🇸 US ARIN
→
AT&T Enterprises, LLC
🇺🇸 US ARIN
AS7286-AS7288M&A · 2018-07-18
AT&T Internet Services
🇺🇸 US ARIN
→
AT&T Corp.
🇺🇸 US ARIN

Date	Resource	From	To	Type
2024-12-05	AS7286-AS7288	AT&T Corp. 🇺🇸 US ARIN	AT&T Enterprises, LLC 🇺🇸 US ARIN	M&A
2018-07-18	AS7286-AS7288	AT&T Internet Services 🇺🇸 US ARIN	AT&T Corp. 🇺🇸 US ARIN	M&A

ASPA

Published1 upstream, 0 downstreams

Authorized Upstream Providers

AS7018

Expires 2026-10-28

View full ASPA details →

External Links

RIPEstat

Learn more

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
How to run an ASPA checkVerify the upstream providers listed above
IPv4 transfer marketTransfers published by all five RIRs
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/7287

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

curl -s "https://api.ipctl.io/v1/asn/7287" | jq