Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Active-threat / abuse risk −12
- Trust score 53 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 6 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS51648 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 91.123.188.0/24 | AS51648, AS51792 | 2026-09-14 11:41:32 |
| 91.123.183.0/24 | AS50153, AS51648, AS51792 | 2026-09-14 11:41:32 |
| 91.123.185.0/24 | AS50153, AS51648, AS51792 | 2026-09-14 11:41:32 |
| 91.123.181.0/24 | AS50153, AS51648, AS51792 | 2026-09-14 11:41:32 |
| 91.123.178.0/24 | AS50153, AS51648, AS51792 | 2026-09-14 11:41:32 |
| 91.123.182.0/24 | AS50153, AS51648, AS51792 | 2026-09-14 11:41:32 |
Network profile
Source: PeeringDB →Present at 3 internet exchanges: EPIX.Katowice, THINX Warsaw, CIX KR
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 91.123.180.0/22 | 1.0K |
98.7%
|
GIGAINTERNET Sp z o.o. | PL | Lesser Poland | Michałowice |
| 91.123.178.0/23 | 512 |
98.8%
|
GIGAINTERNET Sp z o.o. | PL | Lesser Poland | Wielmoża |
| 91.123.188.0/23 | 512 |
99.0%
|
GIGAINTERNET Sp z o.o. | PL | Lesser Poland | Czajowice |
| 91.123.185.0/24 | 256 |
98.0%
|
GIGAINTERNET Sp z o.o. | PL | — | — |
| 91.123.191.0/24 | 256 |
98.0%
|
GIGAINTERNET Sp z o.o. | PL | Lesser Poland | Wawrzeńczyce |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS51648 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 91.123.189.0/24 | 55,140 | 2026-09-14 11:33:46 |
| 91.123.191.0/24 | 54,154 | 2026-09-14 11:33:46 |
| 91.123.180.0/24 | 41,261 | 2026-09-14 11:33:46 |
| 91.123.178.0/24 | 41,149 | 2026-09-14 11:33:46 |
| 91.123.183.0/24 | 40,537 | 2026-09-14 11:33:46 |
| 91.123.182.0/24 | 40,428 | 2026-09-14 11:33:46 |
| 91.123.188.0/24 | 34,787 | 2026-09-14 11:33:46 |
| 91.123.185.0/24 | 32,895 | 2026-09-14 11:33:46 |
| 91.123.181.0/24 | 31,203 | 2026-09-14 11:33:47 |
| 91.123.179.0/24 | 14,423 | 2026-09-14 11:33:46 |
| 91.123.191.250/32 | 2 | 2026-09-09 21:30:25 |
Frequently Asked Questions
What is AS51648?
AS51648 is an Autonomous System Number assigned to GIGAINTERNET Sp z o.o.. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS51648 announce?
AS51648 announces 2.6K IPv4 addresses distributed across 5 routed CIDR prefixes. The network is registered in Poland.
Who operates AS51648?
AS51648 is operated by GIGAINTERNET Sp z o.o.. The organization is based in Poland. You can view all IP ranges and related ASNs on the organization page.
What country is AS51648 registered in?
AS51648 is registered in Poland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
