Autonomous system
AS13446 AS-NETZERO - Netzero,INC.
Unclassified ARIN Cable/DSL/ISP
Summary
NetZero
isp telecom business
Three internet service brands in one record: the handle names one, the netnames name another, and the registrant names the company that owns both.
What it's used for
- A consumer internet provider's network. 27,648 addresses across twenty-eight IPv4 prefixes, six observed BGP neighbours, and no IPv6 announced.
Notable
- The AS handle is
AS-NETZERO. - Twelve blocks are netname
JUNO-BLKorJUNO-BLK2, a different brand. - Registrants list a third name, the holding company, alongside its abuse department.
- Eighteen addresses were queried for reverse DNS and none returned a name.
- One prefix's registry lookup failed, so nothing is known about its registration here.
Interesting
- Two of the largest free dial-up services of their era merged into one holding company, and the merger is legible only in the registry. The autonomous system kept one brand's name, the address blocks kept the other's, and neither was renamed because renaming does nothing for the packets.
- Twenty-eight prefixes for 27,648 addresses means an average block smaller than a /21. Dial-up providers accumulated address space in the sizes their modem banks needed, city by city, and the fragments outlast the modems.
- Announcing no IPv6 at all in a network this old is the honest signal that the customer base it was built for is not growing.
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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 28 prefixes · 27.65K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 28 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS13446- Registry name
- AS-NETZERO
- Registrant
- Netzero,INC.
- Abuse contact
- hostmaster@noc.untd.com
- Registered
- 1999-06-09
- Last changed
- 2024-09-27
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- United Online
- Also known as
- NetZero, Juno
- Network type
- Cable/DSL/ISP
- Scope
- North America
- Traffic ratio
- Balanced
- Peering policy
- Selective
- Facilities
- 1 facilities
- Website
- http://www.untd.com/
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, 25 with no ROA
- ROAs
- 0 authorising AS13446
- ASPA
- no ASPA record
- IRR
- 100% registered · 25 of 25 announcements
- Route objects
- 45 naming AS13446
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: 453 networks and 1,846 prefixes, as published 2026-11-11. 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