asn.dev

Autonomous system

AS399728 PFOUNDATION

Unclassified ARIN

IPv4 addresses 1.54K 3 prefixes
IPv6 prefixes 7 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 4 recorded by PCH
Upstreams 19 1 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 4 exchanges in 3 countries, largest first.

ExchangeLocationTheir address
LINX LON1London, United Kingdom195.66.227.51
Equinix Internet Exchange AshburnAshburn, United States206.126.236.243
New York International Internet ExchangeNew York, United States198.32.160.152
OpenIX BeirutBeirut, Lebanon23.181.208.195

Transit providers

19 upstream, 1 downstream and 28 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6939Hurricane Electric LLC578
AS174Cogent Communications, LLC97
AS24482SG.GS16
AS34549meerfarbig GmbH & Co. KG16
AS17639Converge ICT Solutions Inc.6
AS37721Virtual Technologies & Solutions6
AS48185team.blue NV6
AS48362Stadtwerke Feldkirch6

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 3 prefixes · 1.54K addresses IPv6 7 prefixes

CountryNamePrefixes
USUnited States of America10

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS399728
Registry name
PFOUNDATION
Registrant
P Foundation
Abuse contact
networkabuse@p.foundation
Registered
2021-06-02
Last changed
2022-11-28
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 16 valid, 0 with no ROA
ROAs
23 authorising AS399728
ASPA
2 declared providers
IRR
100% registered · 16 of 16 announcements
Route objects
22 naming AS399728

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 448 networks and 1,851 prefixes, as published 2026-10-29. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check