Autonomous system
AS13999 Mega Cable, S.A. de C.V.
Unclassified LACNIC
Summary
Mega Cable
isp telecom infrastructure
Nearly two million addresses whose reverse names announce which city each customer is in and whether they share an address.
What it's used for
- A national cable broadband network. 1,970,176 addresses across 962 IPv4 prefixes plus 327 IPv6 prefixes, all announced from Mexico.
Notable
- The largest blocks are
177.226.0.0/16,187.240.0.0/16and187.242.0.0/16. - Netnames are the address ranges themselves, in the form
177.224.0.0 - 177.231.255.255. - Every sampled address returned a name. They take the form
customer-GDL-PUBLIC-CGN-32-0.megared.net.mx, with a three or four letter city code, an optionalPUBLIC, and the last two octets. - The routing status lookup failed, so neighbour count and first-seen date are unknown.
- The registry lookup for
177.224.192.0/18failed.
Interesting
CGNmarks addresses shared between many subscribers rather than assigned to one. Publishing that in reverse DNS tells anyone querying an address whether it identifies a household or a few hundred of them, which matters enormously to anyone trying to act on an address.- The word
PUBLICappears alongsideCGNon some names and not others, so the same naming scheme distinguishes shared space from dedicated space within one city. That distinction is usually invisible from outside a provider. - The netnames are the first and last address of each range. Where other registries take a short label, this one records the boundaries, which makes the field useless as an identifier and perfect as a description.
- Eighteen sampled addresses gave eleven different city codes. A provider that labels every address with its location has built its reverse DNS from the same inventory that tracks where the equipment physically is.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| MEX-IX McAllen | McAllen, United States | 206.71.142.17 |
Transit providers
7 upstream, 29 downstream and 53 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 957 prefixes · 1.95M addresses IPv6 333 prefixes
| Country | Name | Prefixes |
|---|---|---|
| MX | Mexico | 1,290 |
Registry
Allocation record
- Registry
- LACNIC
- Registered
- 1999-10-01
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 66% valid · 1,756 valid, 913 with no ROA
- ROAs
- 168 authorising AS13999
- ASPA
- no ASPA record
- IRR
- 100% registered · 2,669 of 2,669 announcements
- Route objects
- 272 naming AS13999
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: 440 networks and 1,773 prefixes, as published 2026-10-13. 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