asn.dev

Autonomous system

AS397423 TIER-NET

Hosting ARIN

IPv4 addresses 95.74K 257 prefixes
IPv6 prefixes 21 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 4 recorded by PCH
Upstreams 15 28 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 4 exchanges in 1 country, largest first.

ExchangeLocationTheir address
DE-CIX New YorkNew York, United States206.82.104.33
DE-CIX DallasDallas, United States206.53.202.113
Megaport IX AshburnAshburn, United States206.53.170.49
Central Oregon Internet eXchangeBend, United States149.112.8.3

Transit providers

15 upstream, 28 downstream and 67 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS40676Psychz Networks5,409
AS6461Zayo Bandwidth4,709
AS3356Level 3 Parent, LLC3,793
AS174Cogent Communications, LLC3,652
AS6939Hurricane Electric LLC1,428
AS7029Windstream Communications LLC342
AS137409GSL Networks Pty LTD120
AS14907Wikimedia Foundation Inc.103

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 257 prefixes · 95.74K addresses IPv6 21 prefixes

CountryNamePrefixes
USUnited States of America278

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS397423
Registry name
TIER-NET
Registrant
Tier.Net Technologies LLC
Abuse contact
abuse-team@tier.net
Registered
2019-03-26
Last changed
2019-03-26
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
82% valid · 290 valid, 63 with no ROA
ROAs
249 authorising AS397423
ASPA
no ASPA record
IRR
100% registered · 353 of 353 announcements
Route objects
669 naming AS397423

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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