Data as of Nov 13, 2026
89.174.75.0/24
No anonymizer space · no proxy exits in 30 daysLibrum Sp. z o.o. · space held by T-Mobile Polska S.A.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 89.174.0.0/16 since Mar 2022 | AS12912 | Mobile | 105 8 always on | T-Mobile Polska S.A. |
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 |
|---|---|---|---|---|---|---|
| 89.174.0.0/16 | 65,536 | PL-IT-20060327 | T-Mobile Polska S.A. (ORG-ITP1-RIPE) · PL | ALLOCATED PA | Mar 27, 2006 | abuse-b2b@ |
| └ 89.174.75.0/24 | 256 | LIBRUM-NETWORK | ul. Moniuszki 7A/6 | ASSIGNED PA | Apr 24, 2025 | abuse-b2b@ via PL-IT-20060327 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Registry
Holder
- Organization
- T-Mobile Polska S.A.
- Handle
- ORG-ITP1-RIPE
- Range
- 89.
174. 0. 0/ 16 - Registration type
- ALLOCATED PA
- Record created
- Mar 27, 2006
Origin network
AS6873
PL
- Name
- Librum Sp. z o.o.
- Type
- Business
- Registered
- Jul 27, 2009
- Domain
- librum.pl
- Industry
- Law, Business, and Consulting Services
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Jun 2023
- Current origin since
- Dec 2023 · 2.9 yr
- Origin networks
- 2
- Last change of origin
- Dec 2023
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 89.174.75.0/24 | AS6873 | /24 | RIPE | RPKI valid |
| 89.174.0.0/16 | AS5588 | /16 | RIPE | Another network |
| 89.174.0.0/16 | AS12912 | /16 | RIPE | Another network |
Whois
Registration for this announcement
- Range
- 89.
174. 75. 0/ 24 - Netname
- LIBRUM-NETWORK
- Registrant
- ul. Moniuszki 7A/6
- Registrant country
- PL
- Organization
- ul. Moniuszki 7A/6
- Org country
- PL
- Type
- ASSIGNED PA
- Created
- Apr 24, 2025
- Updated
- Apr 24, 2025
- Maintainer
- AS8246-MNT
- RIR
- RIPE NCC
- Country
- PL
- Delegated
- Mar 27, 2006
- Status
- assigned
Report abuse
Abuse contact
- abuse-b2b@
t-mobile. pl - Name
- T-Mobile.pl B2B abuse contact
- Handle
- AR16414-RIPE