Autonomous system
AS6208 FIBERX
Residential ARIN
Summary
FiberX
isp legacy
FIBERX is the network of FiberX, a Puerto Rican fibre-optic operator based in the Metro Office Park in Guaynabo, near San Juan.
What it's used for
- Broadband and fibre services across Puerto Rico for residential and commercial subscribers — FTTH/FTTB, metro Ethernet, VoIP and managed connectivity.
- Colocation and cloud connectivity from FiberX's own Guaynabo data centre.
- Announces a modest footprint of about 4,900 IPv4 addresses along with a
/32of IPv6.
Notable
- This is an island carrier: FiberX operates its own fibre and wireless plant linking Puerto Rico to the mainland United States and onward, so the ASN is one of the handful that actually originate Puerto Rican eyeball traffic.
- The address space mixes a
/20with several scattered/24s, reflecting a network that grew by acquiring space piecemeal rather than receiving one large early allocation.
Interesting
- The ARIN record for both the organisation and the AS number is recent: this low number was reissued to a modern operator, and carries no early-internet history despite sitting in the 6000s.
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 2 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| FL-IX - The Florida Internet Exchange / Community IX - Florida | Miami, United States | 206.41.108.211 |
| Puerto Rico Internet Exchange | San Juan, Puerto Rico | 204.138.0.76 |
Transit providers
7 upstream, 24 downstream and 44 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 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 5 prefixes · 3.84K addresses IPv6 19 prefixes
| Country | Name | Prefixes |
|---|---|---|
| PR | Puerto Rico | 24 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS6208- Registry name
- FIBERX
- Registrant
- FiberX
- Abuse contact
- irivera@fiberx.net
- Registered
- 2023-12-20
- Last changed
- 2024-05-13
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 67% valid · 4 valid, 2 with no ROA
- ROAs
- 4 authorising AS6208
- ASPA
- no ASPA record
- IRR
- 100% registered · 6 of 6 announcements
- Route objects
- 5 naming AS6208
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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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