Autonomous system
AS4319 CORTLAND
Unclassified ARIN Cable/DSL/ISP
Summary
Cortland Electronics Corp.
enterprise legacy
CORTLAND is Cortland Electronics Corp., a small network operator in Knoxville, Tennessee that runs under the Milliwave name — the brand appears in its ARIN contact address and in the reverse DNS of its border routers.
What it's used for
- A small, single-homed network: it announces only a few /24s and reaches the internet through a single upstream, so it functions as a stub rather than as transit for others.
Notable
- The public footprint is minimal. Most of the address space carries no reverse DNS, and the operator has little presence beyond its registry records, so the specific service it delivers is not publicly documented.
- Despite the low AS number, treat the size as the real signal here: this is a modest regional network, not a major carrier.
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
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.
| AS | Network | Paths seen |
|---|---|---|
| AS13331 | MetaPeer | 3 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-08, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 0 prefixes · 0 addresses IPv6 0 prefixes
This network announces no prefixes we can see.
Registry
Allocation record
- Registry
- ARIN
- Handle
AS4319- Registry name
- CORTLAND
- Registrant
- Cortland Electronics Corp.
- Abuse contact
- mike@hmlevy.com
- Registered
- 1995-02-01
- Last changed
- 1996-05-28
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- Cortland Communications
- Network type
- Cable/DSL/ISP
- Scope
- Regional
- Traffic ratio
- Balanced
- Peering policy
- Open
- Website
- http://www.milliwave.net
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS4319
- ASPA
- no ASPA record
- IRR
- 33% registered · 1 of 3 announcements
- Route objects
- 12 naming AS4319
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: 455 networks and 1,854 prefixes, as published 2026-11-09. 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