Autonomous system
AS5586 MCI-INT
Unclassified RIPE
Summary
Verizon UK Limited
enterprise transit legacy
MCI-INT is registered to Verizon UK Limited. The handle stands for MCI International: this is a legacy MCI network identity that passed to Verizon when Verizon acquired MCI/WorldCom, and it has been kept on rather than retired.
What it's used for
- Enterprise networking under Verizon's UK entity. The announced footprint is small (a couple of /24s), so this reads as a residual carrier AS rather than a main backbone.
Notable
- MCI was one of the defining names of the commercial internet's first decade, and handles like this one are the pieces of it still visible in the routing table.
- Verizon's real transit and enterprise scale sits in other, much larger AS numbers. A near-empty legacy AS like this is best read as an inherited registration that still has a job, not as a significant network in its own right.
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 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS702 | Verizon Business | 148 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-27, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 512 addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GB | United Kingdom | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS5586- Registry name
- MCI-INT
- Registrant
- Verizon UK Limited
- Abuse contact
- abuse.emea@verizon.com
- Registered
- 2002-05-27
- Last changed
- 2017-11-15
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS5586
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 3 announcements
- Route objects
- 0 naming AS5586
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 1,852 prefixes, as published 2026-10-27. 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