Data as of Nov 7, 2026
158.173.238.0/23
No anonymizer space · no proxy exits in 30 daysNOS Comunicacoes, S.A. · space held by Nimbus IP Networks BV
Announcement
this exact prefix
RPKI valid
Announced by
Type
Unknown
Risk
40 / 100 · Medium
Leased space
Recent change
New origin May 2026
its first announcement on record
IPv4 market
Path
Announced by AS2860 since May 2026 · 6 mo ago
2 · Leased from
4 · Use
Unknown
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
158.173.238.0/23
From the registry to its use
- Jul 11, 2025Registry recordNimbus IP Networks BVLEGACY158.173.128.0/17
- May 19, 2026– today
- Jun 3, 2026Route objectAS2860 NOS Comunicacoes, S.A.RIPE route object for AS2860 NOS Comunicacoes, S.A., maintainer PREFIXBROKER-MNT
- todayLeased fromPrefixBrokerIP broker
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 158.173.128.0/17 | 32,768 | NIMBUSIP-158-173-128-0 | Nimbus IP Networks BV (ORG-NINB1-RIPE) · NL | LEGACY | Jul 11, 2025 | abuse@ |
| └ 158.173.224.0/20 | 4,096 | NIMBUSIP-158-173-224-0 | Nimbus IP Networks BV (ORG-NINB1-RIPE) · NL | LEGACY | Dec 1, 2025 | report@ |
| └ 158.173.238.0/23 | 512 | LISBOA-PT-158-173-238-0 | unknown | LEGACY | Jun 3, 2026 | abuse@ |
Network & registry
IPv4 market
Holder
- Organization
- Nimbus IP Networks BV
- Handle
- ORG-NINB1-RIPE
- Range
- 158.
173. 128. 0/ 17 - Registration type
- LEGACY
- Record created
- Jul 11, 2025
- Legacy
- yes
Origin network
AS2860
PT
- Name
- NOS Comunicacoes, S.A.
- Type
- Internet provider
- Registered
- Jan 18, 1994
- Domain
- nos.pt
- Website
- www.nos.pt
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2026
- Current origin since
- May 2026 · 6 mo
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 158.
173. 238. 0/ 23 - Netname
- LISBOA-PT-158-173-238-0
- Registrant country
- PT
- Organization
- Not stated by the registry
- Type
- LEGACY
- Created
- Jun 3, 2026
- Updated
- Jun 3, 2026
- Maintainer
- PREFIXBROKER-MNT
- RIR
- RIPE NCC
- Country
- NL
- Delegated
- Sep 1, 1993
- Status
- assigned
Report abuse
Abuse contact
- abuse@
modmc. net - Name
- Abuse-C Role
- Handle
- AR36608-RIPE