asn.dev

Autonomous system

AS28103 TECNOLOGIA EN ELECTRONICA E INFORMATICA SOCIEDAD ANONIMA T.E.I.S.A

Residential LACNIC

IPv4 addresses 8.19K 11 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly PY
Exchanges 1 recorded by PCH
Upstreams 3 10 downstream
Flagged prefixes 0 none

Summary

TEISA

Paraguay · AI-generated

isp residential paraguay cable

AS28103 is operated by TEISA (Tecnología en Electronica e Informatica S.A.), a regional internet service provider in Paraguay.

What it's used for

  • The address space carries customer-facing infrastructure, evidenced by reverse DNS entries such as mx.rolesa.com.py and multiple host*.teisa.com.py records.
  • The AS announces 8192 IPv4 addresses across 11 prefixes and 1 IPv6 prefix, with 15 observed neighbours. This ratio of address space to peering partners is consistent with an access or eyeball network serving local subscribers rather than a transit provider.

Notable

  • All RDAP registrants for the announced prefixes match the AS holder, TECNOLOGIA EN ELECTRONICA E INFORMATICA SOCIEDAD ANONIMA (T.E.I.S.A), confirming direct ownership of the inventory.
  • The address inventory is fragmented into multiple /22, /23, and /24 blocks across different ranges (e.g., 201.222.48.0/21, 131.161.252.0/22, 190.110.226.0/23), suggesting historical accumulation of space rather than a single contiguous allocation.

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

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Punto de Intercambio de Tráfico de ParaguayAsuncion, Paraguay201.217.14.12

Transit providers

3 upstream, 10 downstream and 15 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS13335Cloudflare, Inc.2,006
AS52468UFINET PANAMA S.A.88
AS23201Telecel S.A.15

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 11 prefixes · 8.19K addresses IPv6 1 prefixes

CountryNamePrefixes
PYParaguay12

Registry

Allocation record

LACNIC · via Atlas (registry data)
Registry
LACNIC
Registered
2009-12-02
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 33 valid, 0 with no ROA
ROAs
42 authorising AS28103
ASPA
no ASPA record
IRR
100% registered · 33 of 33 announcements
Route objects
63 naming AS28103

Reputation

Classification and threat

Residential Fixed-line consumer ISP. Addresses here are homes.

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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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

Cross-check