asn.dev

Autonomous system

AS40107 QTS-DFW

Unclassified ARIN

IPv4 addresses 13.06K 20 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 3 recorded by PCH
Upstreams 10 16 downstream
Flagged prefixes 0 none

Summary

QTS Data Centers

United States of America · AI-generated

hosting datacenter colocation

QTS-DFW is the AS handle for Quality Technology Services, LLC, operating as QTS Data Centers.

What it's used for

  • The address space carries colocation and data center infrastructure, evidenced by netnames such as QTS-209-10-0-0-16 and QTS-209-11-128-0-18.
  • The AS announces 12,800 IPv4 addresses across 20 prefixes and 1 IPv6 prefix, while maintaining 32 observed neighbours, a ratio consistent with a hosting provider connecting to multiple upstreams and peers.
  • Traffic from this AS consists of hosted customer workloads, including web and API endpoints, cloud services, and managed infrastructure for enterprise clients.

Notable

  • Registrants for the majority of prefixes align with the announcer, specifically Quality Technology Services, LLC, though some blocks are registered to McGuireWoods LLP and APTEAN INC.
  • The address inventory is primarily composed of /21 and /22 blocks in the 209.10.0.0/16 and 209.11.0.0/16 ranges, with smaller /24 allocations from various legacy or acquired ranges.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 3 exchanges in 1 country, largest first.

ExchangeLocationTheir address
DE-CIX DallasDallas, United States206.53.202.135
Megaport DallasDallas, United States206.53.174.39
Ninja-IX DallasDallas, United States206.71.139.10

Transit providers

10 upstream, 16 downstream and 30 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS1299Arelion Sweden AB289
AS3356Level 3 Parent, LLC244
AS6939Hurricane Electric LLC155
AS174Cogent Communications, LLC136
AS49915Megaport (UK) Limited74
AS62917Gigabit Communications LLC65
AS701Verizon Business26
AS14907Wikimedia Foundation Inc.16

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, 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 20 prefixes · 13.06K addresses IPv6 1 prefixes

CountryNamePrefixes
USUnited States of America21

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS40107
Registry name
QTS-DFW
Registrant
Quality Technology Services, LLC
Abuse contact
abuse@q.com
Registered
2014-04-24
Last changed
2019-11-08
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 18 with no ROA
ROAs
1 authorising AS40107
ASPA
no ASPA record
IRR
94% registered · 17 of 18 announcements
Route objects
36 naming AS40107

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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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