Autonomous system
AS41644 EMISFERA-AS
Residential RIPE
Summary
Emisfera
isp residential regional cable
The AS handle EMISFERA-AS is held by Emisfera Societa' Cooperativa.
What it's used for
- The address space carries residential and business internet access, evidenced by reverse DNS entries such as
host-45-81-66-254.emisfera.itand netnames likeIT-EMISFERA-20160329andEMISFERA-NET. - The network announces 2304 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, while maintaining 30 observed neighbours; this ratio of address space to peering partners indicates a regional access provider rather than a transit hub.
- Traffic from this AS consists of subscriber eyeballs for cable and DSL users in the Verbania region, as Emisfera operates as a regional ISP providing connectivity services.
Notable
- Registrants for the two largest prefixes are Emisfera Societa' Cooperativa, while the 45.81.64.0/22 block is registered to Viatek Srl under the netname
IT-VIATEK-20190517. - The address inventory is composed of three distinct IPv4 blocks, with the 45.81.64.0/22 and 185.144.212.0/22 blocks being the largest allocations.
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
Recorded at 3 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Milan Internet Exchange | Milan, Italy | 217.29.67.135 |
| Roma Internet Exchange Point | Rome, Italy | 193.201.28.239 |
| Torino Piemonte Exchange Point | Torino, Italy | 194.116.96.48 |
Transit providers
9 upstream, 0 downstream and 13 adjacent networks observed; most-used upstreams first.
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 3 prefixes · 2.30K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| IT | Italy | 4 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS41644- Registry name
- EMISFERA-AS
- Registrant
- it-emisfera-1-mnt
- Abuse contact
- abuse@emisfera.it
- Registered
- 2006-09-28
- Last changed
- 2025-05-21
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 4 valid, 0 with no ROA
- ROAs
- 5 authorising AS41644
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 4 naming AS41644
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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