Alsycon B.V.
Data as of 2026-09-06
BGP inherited
This organisation
| Netblocks | 43 · 10,501 IPv4 addresses |
| IPv6 | 7 prefixes (largest 2a0e:3980::/29) |
| Registered in | Netherlands (26) · United States (16) · SC (9) · LT (2) · Canada (1) |
| Record ID | 236106618 |
| Registry | BGP |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 27 shared RIR contact/maintainer handles |
| Registry names | 6 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (43)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 45.81.22.0/23 | Alsycon B.V. | RIPE | ASSIGNED PA | ● high |
| 62.204.50.0/24 | Alsycon B.V. | RIPE | ALLOCATED PA | ● high |
| 77.241.206.130/32 | Alsycon AS49870 | PEERINGDB | ASSIGNED | ● high |
| 94.247.136.0/24 | Alsycon B.V. | RIPE | ALLOCATED PA | ● high |
| 178.255.217.0/24 | Alsycon B.V. | RIPE | ALLOCATED PA | ● high |
| 185.1.160.1/32 | Alsycon AS49870 | PEERINGDB | ASSIGNED | ● high |
| 185.1.184.201/32 | Alsycon AS49870 | PEERINGDB | ASSIGNED | ● high |
| 185.1.222.233/32 | Alsycon AS49870 | PEERINGDB | ASSIGNED | ● high |
| 185.1.223.22/32 | Alsycon AS49870 | PEERINGDB | ASSIGNED | ● high |
| 185.228.251.0/24 | Alsycon B.V. | RIPE | ALLOCATED PA | ● high |
| 2001:7f8:b7::a504:9870:1/128 | Alsycon AS49870 | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:10f::c2ce:1/128 | Alsycon AS49870 | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:134::c8/128 | Alsycon AS49870 | PEERINGDB | ASSIGNED | ● high |
| 2a0e:3ec0::/29 | Alsycon B.V. | BGP | ANNOUNCED | ● high |
| 2a11:8280::/29 | Alsycon B.V. | BGP | ANNOUNCED | ● high |
| 2.56.167.0/24 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 45.80.36.0/23 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 45.95.144.0/23 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 45.95.146.0/24 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 45.95.147.0/24 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 45.140.222.0/23 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 77.83.240.0/24 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 89.116.202.0/24 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 89.190.156.0/24 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 89.190.159.0/24 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 142.228.32.0/23 | UNKNOWN | BGP | ANNOUNCED | ● medium |
| 160.119.64.0/22 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 160.119.69.0/24 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 160.119.71.0/24 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 160.119.74.0/24 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 160.119.75.0/24 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 160.119.76.0/23 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 160.119.78.0/24 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 169.239.130.0/24 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 185.142.130.0/24 | UNKNOWN | BGP | ANNOUNCED | ● medium |
| 185.224.128.0/24 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 194.50.16.0/24 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 196.61.64.0/22 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 212.107.12.0/24 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 2a0d:4ec0::/32 | lir-us-ithelp-1-MNT | BGP | ANNOUNCED | ● medium |
| 2a0e:3980::/29 | Alsycon B.V. | BGP | ANNOUNCED | ● medium |
| 45.95.144.0/22 | Alsycon B.V. | RIPE | ALLOCATED PA | ● low |
| 45.95.145.0/24 | Alsycon B.V. | RIPE | ASSIGNED PA | ● low |
IPv6 ranges (7)
Footprint over time
11 weekly snapshots · JSON
64
+3 netblocks since 2026-07-05
2026-07-05
peak 64
2026-09-06
Network trust
what's this?
RPKI hygiene: C
how networks compare →
76.6%
of checked blocks have valid RPKI ROA coverage
(49 of 64)
Possible discrepancies (5)
These blocks are registered to Alsycon B.V. but cryptographically authorized for a different, unrelated network (3 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 2a0d:4ec0::/32 /32 | authorized for AS218859 — lir-us-ithelp-1-MNT |
| 77.83.240.0/24 /24 | authorized for AS7759 — Oster Communications, Inc. |
| 194.50.16.0/24 /24 | authorized for AS62068 — SpectraIP B.V. |
| 77.83.240.0/24 /24 | authorized for AS7759 — Oster Communications, Inc. |
| 194.50.16.0/24 /24 | authorized for AS62068 — SpectraIP B.V. |
NIC Handles
AB39270-RIPE
AB39270-RIPE
ACRO31910-RIPE
AS208911
AS218859
AS49305
AS49870
AS49870
Alsycon-BV
Alsycon-BV
Alsycon-BV
DUMY-RIPE
+15 more