asn.dev

Autonomous system

AS32587 NCH-FTWDC-01

Unclassified ARIN

IPv4 addresses 2.05K 4 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

Frontier Communications

United States of America · AI-generated

residential isp legacy fiber

NCH-FTWDC-01 is held by Frontier Communications of America, Inc.

What it's used for

  • The address space carries residential broadband traffic, evidenced by reverse DNS entries such as ip.frontiernet.net and static-...ftwy.in.frontiernet.net.
  • The AS announces 2048 IPv4 addresses across 4 prefixes with only 1 observed neighbour, a ratio indicative of an access or eyeball network rather than a transit provider.

Notable

  • All four announced prefixes list Verizon Business as the registrant under the netname FRTR-LEGACY-FTR13, reflecting the historical transfer of wireline assets from Verizon to Frontier.
  • Frontier Communications acquired Verizon's wireline assets in 2016, which explains the legacy registrant data persisting in the RDAP records for this address space.
  • The inventory consists of four contiguous IPv4 blocks within the 50.121.0.0/16 range, with no IPv6 prefixes currently announced.

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
AS5650Frontier Communications of America, Inc.232

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 4 prefixes · 2.05K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America4

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS32587
Registry name
NCH-FTWDC-01
Registrant
Verizon Business
Abuse contact
abuse@verizon.com
Registered
2009-11-17
Last changed
2026-08-03
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 4 valid, 0 with no ROA
ROAs
4 authorising AS32587
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
4 naming AS32587

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: 447 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