asn.dev

Autonomous system

AS12071 -Reserved AS-

Unclassified ARIN

IPv4 addresses 256 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Nationwide CPAs

United States · AI-generated

enterprise hosting

An accountancy's /24 where every sampled address is a numbered mail host on a different brand.

What it's used for

  • Mail and corporate connectivity. 256 addresses in a single /24 with one observed BGP neighbour and no IPv6 announced.

Notable

  • The three sampled addresses answered as mail1-64.bizfastfund.com, mail2-127.ertcwizards.com and mail3-190.nationwidecfos.com.
  • The numbering runs across the domains rather than within them: mail1, mail2, mail3 on three separate names.
  • Each host name also carries its own last octet.
  • The block, 64.94.13.0/24, is netname NCL-216, registered to Nationwide CPAs LLC.

Interesting

  • One /24 fronting several finance brands from a single accountancy is a marketing operation rather than an office network. bizfastfund and ertcwizards name financing and tax-credit offers, nationwidecfos names an outsourced finance service, and all three send from the same addresses.
  • Numbering mail hosts sequentially across unrelated domains is what you do when the hosts are the thing being counted and the domains are interchangeable. Reputation attaches to addresses, so spreading brands across one block means they share whatever reputation that block has, in both directions.
  • NCL-216 follows neither the company name nor the address, which leaves it as somebody's internal reference.

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

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS29802HIVELOCITY, Inc.66

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, 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 1 prefixes · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS12071
Registry name
NATIONWIDECPAS-LLC
Registrant
Nationwide CPAs LLC
Abuse contact
rizwan@nationwidecfo.com
Registered
2025-10-16
Last changed
2025-10-16
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS12071
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
2 naming AS12071

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 1,849 prefixes, as published 2026-10-30. 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