Summary

  • AS210057's declared routing policy and its observed BGP adjacency agree exactly: two upstream suppliers, AS50877 Airbeam S.r.l. and AS9002 RETN Limited, and nothing else.
  • Airbeam originates the covering aggregate 185.182.208.0/22 that contains one of AS210057's two prefixes, and lists AS210057 in its customer cone alongside other small Italian ISPs.
  • RETN, the second supplier, has not published its own ASPA object, which means paths through RETN remain "unknown" under ASPA-based route-leak detection.
  • No source — registry, commercial, or third-party — names an individual or party exercising durable operational control of AS210057.

The declared topology and the observed one are the same picture

The RIPE aut-num object for AS210057 is a short document with an unusually definitive structure. It declares two imports and nothing more: accept ANY from AS50877, accept ANY from AS9002. Its exports announce the AS210057:AS-INFINITYWIFI as-set and the bare origin AS to both suppliers identically. The object was created on 18 May 2026 at 10:27:44 UTC and last modified on 7 July 2026 at 17:43:39 UTC, carries administrative and technical contact handles set to DUMY-RIPE (a placeholder), and is maintained jointly by the RIPE NCC hostmaster and the sponsoring LIR's maintainership object lir-it-infinity1-1-MNT (source). A third-party mirror of the same object confirms the identical import and export lines (source).

What makes this interesting is not the content but the correspondence. Live routing observation over the window from 20 June 2026 to 20 September 2026 shows exactly two neighbours for AS210057 — the two customer-to-provider relationships with AS50877 and AS9002 — and a change table recording zero new, zero left, and zero unstable entries across the entire three-month period (source). The paper topology and the operational topology do not merely agree; they have been in agreement without a single recorded event for a quarter.

For context, the network's overall posture is small and quiet. Qrator Radar's overview classifies AS210057 with 2 providers, 0 peerings, 2 prefixes covering roughly 1,280 IPv4 addresses, both carrying valid RPKI ROA and route-object status, and global visibility in the "Local (5-15%)" band (source). Third-party aggregators independently restate the same footprint: IP2Location lists the two prefixes — 136.148.140.0/22 (1,024 addresses) and 185.182.208.0/24 (256 addresses) — the same two upstreams, and zero downstreams (source). The IRR as-set AS210057:AS-INFINITYWIFI validates cleanly in NLnet Labs' IRR explorer (source).

The first supplier: Airbeam, and the aggregate that contains the customer

AS50877, Airbeam S.r.l., is itself an Italian network, registered in the RIPE database on 19 December 2016 under the maintainer it.airbeam. Its public record on bgp.tools shows a materially different profile from its customer's: Airbeam originates the covering aggregate 185.182.208.0/22 — the /22 that contains AS210057's more-specific 185.182.208.0/24 — alongside an IPv6 allocation 2a0a:f980::/29, and lists AS210057 INFINITY LINE SRL in its downstream set (source). This is a point worth pausing on: one of AS210057's two prefixes reaches the global table not only through its own origin but inside a larger aggregate that its supplier itself originates. That is normal for a customer-of-customer relationship and it is also the reason the customer's visibility is bounded by the supplier's own routing choices.

Airbeam's own upstream mix, as reconstructed from BGP data, includes Telecom Italia Sparkle (AS6762), Inter.link GmbH (AS5405), Swisscom (AS3303), SG.GS (AS24482) and Hivane (AS34019), with slight variations between data snapshots (source). The structural picture is of a regional Italian network that buys diverse transit from larger wholesalers and resells connectivity to a cone of small local providers — among them AS5392 TELNET S.r.l., AS31686 NETisON SRL and AS212686 Speed Wifi Srls, with AS210057 in the same list (source). AS210057 is, in this reading, not a special case for Airbeam. It is one name in a customer cone of small Italian networks, which is exactly what its resource base suggests it is.

The second supplier: RETN, and the record that is missing

The other supplier is of a different kind entirely. AS9002, RETN Limited, is a wholesale transit provider whose network touches hundreds of customer networks. The relevant fact for AS210057 is an absence: RETN has not published its own ASPA object. On ipctl.io's ASPA registry view, 89 autonomous systems list AS9002 as an authorized upstream provider, but AS9002 itself publishes none, which means that any path through RETN — including the path from AS210057 to the wider internet via its second supplier — is classified as "unknown" rather than validated or invalid under ASPA-based route-leak detection (source).

ASPA (Autonomous System Provider Authorization) is a newer routing-security instrument that lets a network declare, in a signed object, which providers are authorized to carry its routes. Where a provider has published no object, downstream paths through it cannot be positively validated. The practical consequence for AS210057 is asymmetric: its relationship with Airbeam is corroborated by a supplier that actively originates an aggregate covering its prefix, while its relationship with RETN is corroborated by the aut-num's declared policy and observed adjacency but not by any route-security instrument on the supplier's side. RETN's own peering-policy page describes a wholesale transit business with documented policy for customers (source), but ASPA publication is not among its public signals.

What the supplier records prove, and where they stop

Taken together, the two supplier records do something that AS210057's own records cannot: they place the network inside someone else's bookkeeping. Airbeam's customer cone names INFINITY LINE SRL explicitly, with other real Italian ISPs as peers in the same list. PeeringDB's self-reported record for the network — net 43287, last updated 17 August 2026 — attributes AS210057 to INFINITY LINE SRL, records IRR as-set status as Verified and RIR status as ok, lists traffic levels as Not Disclosed, and includes IPv6 in its protocol list despite the network originating no IPv6 at all (source). That last discrepancy is a self-reported capability against an observed behaviour, and it is the kind of small inconsistency that third-party records expose precisely because they are compiled independently.

The corporate layer behind the registry name is consistent across sources. Infinity Line S.R.L., VAT number 04837890161, is recorded as Active at Via San Sosimo 23, Palazzago, in the province of Bergamo, Lombardy, with a primary ATECO activity code of 61.90.1 — the provision of internet access services (source). The operator's own website, infinitywifi.it, advertises InfinityHome and InfinityBUSINESS connectivity from 24.90 EUR per month, lists the same Palazzago address plus a second location at Via Briantea 7, Ambivere, and publishes a customer-support telephone contact; it also asserts commercial scale — more than 1,200 business customers and more than 1,200 annual assistance interventions — that is never connected to AS210057 anywhere on the site (source). Geolocation datasets place the two prefixes in the Bergamo area: DB-IP locates 136.148.140.0/22 at Gromlongo and 185.182.208.0/24 at Palazzolo sull'Oglio (source), while IPinfo maps the /22 to Italy, the domain infinitywifi.it, and AS210057 INFINITY LINE SRL (source). One aggregator disagrees on the domain layer: IP2Location maps the ASN's domain to airbeam.it rather than infinitywifi.it (source) — a source-level disagreement that this article records rather than resolves.

What none of this proves is who operates the network. Every registry field that would name a person is a placeholder: the aut-num's admin-c and tech-c are DUMY-RIPE, and no source consulted — registry, PeeringDB, the company register, the storefront, or any third-party routing database — names an individual or party exercising durable operational control. The RIPE record's most recent modification was on 7 July 2026, and the covering as-block AS208885-AS214345 was created on 13 July 2026 (source); since then, the observable record has been static.

The economic reading of a two-supplier network

A network with exactly two upstream suppliers and no peerings occupies a specific position in the economics of connectivity. Its resilience is bounded by the diversity of those two suppliers — here, one regional Italian network with mixed tier-1 and tier-2 transit, and one pan-European wholesaler — and its negotiating position is correspondingly narrow: it cannot route around either supplier without acquiring a third. Its visibility is bounded by its suppliers' aggregate policies, as the Airbeam /22 covering relationship demonstrates.

And its costs are transit costs: with no peering revenue or exchange, every byte enters and exits at retail-plus margin through two contracts.

For a small ISP, that structure is not inherently fragile — thousands of viable regional networks run on fewer suppliers — but it concentrates the decision points. Changes in Airbeam's aggregate policy or RETN's customer terms would propagate to AS210057 without any intervening layer the public record could observe. The network's cleanliness — valid ROAs, valid route objects, a verified as-set, zero instability events in the observation window — is real and verifiable; its independence is not, because independence is precisely what a two-customer-relationship topology does not have.

Where the evidence stands

The public record establishes: the legal entity behind the registry binding (INFINITY LINE SRL, VAT 04837890161, Bergamo); the network's exact topology (two suppliers, no peerings, no downstreams); the supplier identities and their own observable records; the resource base (1,280 IPv4 addresses, zero IPv6); and a quarter of continuous, event-free operation.

It does not establish: who operates the network day to day; why the storefront's commercial claims and the routing footprint diverge so sharply; or what relationship, if any, exists between the infinitywifi.it retail brand and the ASN beyond the IPinfo domain mapping and the RIPE abuse-contact bridge. Those remain open questions that this article leaves open, because the sources leave them open.

Sources

Additional sources