asn.dev

Autonomous system

AS6379 ALINK - A-Link Network Services, Inc.

Unclassified ARIN Network Services

IPv4 addresses 5.12K 15 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 1 recorded by PCH
Upstreams 8 0 downstream
Flagged prefixes 0 none

Summary

A-Link Network Services

United States · AI-generated

isp legacy

ALINK is A-Link Network Services, Inc., a communications service provider in the San Jose / Sunnyvale area of California's Silicon Valley. It has held this AS number since 1996.

What it's used for

  • Business internet access and managed voice/data services for small and mid-sized companies in the Bay Area.
  • Connectivity for commercial office buildings and multi-tenant properties, plus public hotspots.
  • Announces a couple of dozen mostly /24 prefixes drawn from 207.135.x and 216.39.x, plus IPv6.

Notable

The customer base is businesses and buildings, not households. That shows in the shape of the network: many small prefixes handed to individual customers and tenant sites, rather than large contiguous consumer pools with dsl- or cgn- style reverse DNS.

A small regional provider holding a sub-6500 AS number is a marker of the mid-1990s, when the Bay Area produced a large crop of independent ISPs; A-Link is one of the few from that cohort still operating under its own name.

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

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
San Francisco Metropolitan Internet ExchangeSan Francisco, United States206.197.187.108

Transit providers

8 upstream, 0 downstream and 9 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6939Hurricane Electric LLC631
AS174Cogent Communications, LLC226
AS33651Comcast Cable Communications, LLC164
AS33667Comcast Cable Communications, LLC80
AS701Verizon Business68
AS7018AT&T Enterprises, LLC60
AS30247Voonami, Inc.60
AS3257GTT Communications Inc.1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-03, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 15 prefixes · 5.12K addresses IPv6 1 prefixes

CountryNamePrefixes
USUnited States of America16

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS6379
Registry name
ALINK
Registrant
A-Link Network Services, Inc.
Abuse contact
support@globalvad.com
Registered
1996-03-27
Last changed
1996-03-27
Allocation
assigned

Declared

PeeringDB profile

self-reported
Name
Turtle Systems, LLC
Also known as
Co-Location Bay Area
Network type
Network Services
Scope
Regional
Traffic ratio
Mostly Inbound
Peering policy
Selective
IRR as-set
RADB::AS6379:AS-CONE
Facilities
2 facilities
Website
https://www.turtle.systems

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
5% valid · 1 valid, 20 with no ROA
ROAs
2 authorising AS6379
ASPA
no ASPA record
IRR
100% registered · 21 of 21 announcements
Route objects
30 naming AS6379

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

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: 448 networks and 1,851 prefixes, as published 2026-11-04. 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

Cross-check