asn.dev

Autonomous system

AS21577 TOLEDOTELNET

Unclassified ARIN

IPv4 addresses 8.45K 4 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 1 recorded by PCH
Upstreams 10 0 downstream
Flagged prefixes 0 none

Summary

Toledo Telephone Co

United States of America · AI-generated

residential isp ohio local

TOLEDOTELNET is operated by Toledo Telephone Co Inc.

What it's used for

  • The address space carries residential and business access traffic, evidenced by reverse DNS entries such as 173-250-251-254-dhcp.toledotel.com and 199-15-221-254.dynamic.toledotel.com.
  • The network announces 8448 IPv4 addresses across 4 prefixes and 1 IPv6 prefix, with 14 observed neighbours, indicating a local access provider role rather than a transit hub.

Notable

  • Registrants for the majority of prefixes align with the announcer, specifically TOLEDO TELEPHONE CO INC for TTC-38, NET-2-TOLEDO-TELEPHONE-CO, and NET-TOLEDO-TELEPHONE-CO.
  • The prefix 199.79.193.0/24 is registered to Matronics; FNGi Network Operations Center with netname MATRONICS, suggesting a distinct or leased segment within the AS.
  • The inventory consists of four IPv4 blocks ranging from /20 to /24 and a single /32 IPv6 block, reflecting a modest, regionally focused address estate.

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 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Seattle Internet ExchangeSeattle, United States206.81.81.19

Transit providers

10 upstream, 0 downstream and 14 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS20055Wholesail networks LLC167
AS6939Hurricane Electric LLC68
AS9002RETN Limited8
AS3356Level 3 Parent, LLC6
AS24482SG.GS5
AS394256Tech Futures Interactive Inc.5
AS3130RGnet OU4
AS7575Australian Academic and Research Network (AARNet)4

All 10 upstreams →

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-20, 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 · 8.45K addresses IPv6 1 prefixes

CountryNamePrefixes
USUnited States of America5

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS21577
Registry name
TOLEDOTELNET
Registrant
TOLEDO TELEPHONE CO INC
Abuse contact
aaron@toledotel.net
Registered
2001-05-25
Last changed
2021-07-07
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 5 valid, 0 with no ROA
ROAs
5 authorising AS21577
ASPA
no ASPA record
IRR
100% registered · 5 of 5 announcements
Route objects
5 naming AS21577

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: 442 networks and 1,779 prefixes, as published 2026-10-21. 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