Home ASN LookupAS399728

AS399728 PFOUNDATION - P Foundation

🇺🇸

ARINassignedASPA Published

Announced Prefixes (BGP)

18total

7 IPv411 IPv6

IPv4 Addresses

Allocated (RIR)1,024

Announced (BGP)2,560

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)1.3×10²⁵

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇺🇸 US

RIR

ARIN

Status

assigned

Allocated

2021-06-01

Routing hygiene

Score 9/100 · Low risk

RPKI ROA coverage

100%

no RPKI invalid prefixes

IRR route objects

100%

no origin mismatches

Hijack signals

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

Upstreams

diversity 10/100

Routes concentrated on one upstream (94% of routes)

Based on 18 announced prefixes, updated daily (2026-10-24). How the score works · RPKI explained

Announced Prefixes

(BGP)18

Prefix	RPKI	IRR	Last Seen
38.87.123.0/24	Valid	ARIN	2026-10-27
38.146.216.0/24	Valid	Other IRR	2026-10-27
172.98.48.0/22	Valid	ARIN	2026-10-27
172.98.48.0/24	Valid	ARIN	2026-10-27
172.98.49.0/24	Valid	ARIN	2026-10-27
172.98.50.0/24	Valid	ARIN	2026-10-27
172.98.51.0/24	Valid	ARIN	2026-10-27
2620:98:e000::/48	Valid	ARIN	2026-10-27
2620:98:e002::/48	Valid	ARIN	2026-10-27
2620:98:e003::/48	Valid	ARIN	2026-10-27

1-10 of 18

1 / 2

Allocated Prefixes

(RIR)1

Prefix	Country	RIR	Status
172.98.48.0/22	🇺🇸 US	ARIN	allocated

All 18 announced prefixes of AS399728 →

Upstream Providers(2)

ASN	Name
AS174	🇺🇸COGENT-174 - Cogent Communications, LLC
AS6939	🇺🇸HURRICANE - Hurricane Electric LLC

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS399728 hands its own prefixes to: transit providers, or peers at an exchange.

AS6939Hurricane Electric17
AS174Cogent Communications1

Downstreams (1)

Networks whose own prefixes AS399728 passes on: usually its customers.

AS54994Meteverse Limited1

Other adjacent networks (1)

Adjacent to AS399728 in the transit part of AS paths: peers, providers or customers.

AS6204ZET NET INTERKVM HOST1

ASPA

Published2 upstreams, 0 downstreams

Authorized Upstream Providers

AS174 AS6939

Expires 2026-10-28

View full ASPA details →

External Links

ARIN Whois 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 transfers in the ARIN regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/399728

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

curl -s "https://api.ipctl.io/v1/asn/399728" | jq