Autonomous system
AS3377 MCI-ASN
Unclassified ARIN
Summary
Verizon Business (MCI)
transit isp legacy
A legacy MCI autonomous system (MCI-ASN) now operated by Verizon Business.
It is one of several adjacent MCI ASNs that survived the MCI → MCI WorldCom →
Verizon Business chain of acquisitions.
What it's used for
- Announcing MCI-era address space for Verizon Business, mostly customer and managed-service networks.
- It complements, rather than replaces, Verizon's main backbone ASN [AS701](https://asn.ipinfo.app/AS701).
Notable
- The ARIN registration dates to 1994 — a genuine early-internet allocation from MCI's backbone build-out, not a modern reissue.
- Carrier-assigned addressing: IPs here normally sit inside customer organizations that buy connectivity from Verizon Business.
Interesting
- [AS3375](https://asn.ipinfo.app/AS3375), [AS3376](https://asn.ipinfo.app/AS3376) and [AS3378](https://asn.ipinfo.app/AS3378) share the same handle and the same history — MCI took a consecutive run of AS numbers and kept them.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Address space
Summary
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 4 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS3369- Registry name
- MCI-ASN
- Registrant
- Verizon Business
- Abuse contact
- abuse@verizon.com
- Registered
- 1994-01-06
- Last changed
- 2024-07-02
- Status
- active
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
No IC3 indicators Nothing from the FBI IC3 feed.
Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere