AS16531 — TOPNET SA de CV

AS16531 announces 10 IPv4 prefixes covering 6,400 addresses and 0 IPv6 prefixes.

About this network

The netnames are not names. They are address ranges, written out with a space and a hyphen in the middle.

What it's used for

• A provider's network. Ten IPv4 prefixes announced from Mexico, no IPv6, six thousand four hundred addresses, through one observed BGP neighbour.

Notable

• Every netname is a pair of addresses separated by spaces and a hyphen, marking the first and last of a range. Most registry netnames are labels; these are coordinates.
• Several blocks carry their parent's range rather than their own, so different blocks show the same netname over different addresses.
• The registrant is the provider on most blocks, but its name is written two ways: once with the full corporate form and once with a word missing from the middle.
• Two blocks belong to other companies. One names a firewall, a country and a facility, joined by an underscore where every other field uses hyphens. The other is the same sort of corporate name, punctuated with initials and full stops.
• Eighteen addresses were queried for reverse DNS and none returned a name.

Interesting

• A netname holding an address range is what a registry produces when the field is generated from the allocation rather than written by a person. It is accurate, unreadable, and impossible to search for by name.
• Announcing ten separate prefixes through a single upstream means the fragmentation buys nothing in routing terms. The pieces exist because they were allocated that way.
• One field naming a firewall is the only functional description in the record, and it belongs to somebody else.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 200.52.128.0/21
• 200.52.136.0/24
• 200.52.138.0/23
• 200.52.143.0/24
• 200.76.96.0/24
• 200.76.98.0/24
• 200.76.101.0/24
• 200.76.104.0/21
• 200.76.125.0/24
• 200.76.126.0/24

Upstream networks

• AS19332 COORDINADORA DE CARRIER'S, S.A. DE C.V.

Adjacent networks

• AS19332 COORDINADORA DE CARRIER'S, S.A. DE C.V.