Autonomous system
AS28172 PROJESOM INTERNET LTDA
Unclassified LACNIC
Summary
Projesom Internet
residential isp brazil access
AS28172 is operated by Projesom Internet LTDA.
What it's used for
- The address space carries dynamic residential connections, evidenced by reverse DNS entries such as
dynamic-189-84-196-0.projesom.net.branddynamic-189-84-199-255.projesom.net.br. - The network announces 4096 IPv4 addresses within a single /20 prefix (189.84.192.0/20) and one IPv6 prefix, maintaining only 2 observed routing neighbours. This high address-to-neighbour ratio indicates a local access or eyeball network rather than a transit provider.
Notable
- The RDAP registrant for the announced block is
PROJESOM INTERNET LTDA, which matches the AS holder name exactly. - The inventory consists of a single contiguous IPv4 block and one IPv6 prefix, typical of a regional ISP managing its own allocated space.
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, 1 downstream and 4 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS52531 | G6 Internet | 423 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 · 4.10K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 3 |
Registry
Allocation record
- Registry
- LACNIC
- Handle
28172- Registry name
- ASN28172
- Registrant
- PROJESOM INTERNET LTDA
- Abuse contact
- Jose Luiz Correa
- Registered
- 2007-12-19
- Last changed
- 2015-12-14
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 10 valid, 0 with no ROA
- ROAs
- 2 authorising AS28172
- ASPA
- no ASPA record
- IRR
- 100% registered · 10 of 10 announcements
- Route objects
- 7 naming AS28172
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: 443 networks and 1,784 prefixes, as published 2026-10-19. 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