asn.dev

Autonomous system

AS40197 NBS-72

Unclassified ARIN

IPv4 addresses 4.10K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Nextlink Broadband

United States of America · AI-generated

broadband rural wireless isp

The AS handle NBS-72 is held by Nextlink Broadband.

What it's used for

  • The address space carries broadband access traffic, identified by the netname NEXTLINK and registrant Nextlink Broadband.
  • The inventory consists of 1 IPv4 prefix (198.100.48.0/20) totaling 4096 addresses, with 0 IPv6 prefixes announced.
  • With 1 observed neighbour, the network operates as an access provider rather than a transit hub, delivering internet service to end-users.
  • Traffic from this AS consists of subscriber eyeballs, specifically rural and unserved area customers accessing the internet via Nextlink's wireless broadband infrastructure.

Notable

  • The RDAP registrant Nextlink Broadband agrees with the AS holder NBS-72 - Nextlink Broadband.
  • Nextlink Broadband is the operating entity for Nextlink Internet, a rural broadband provider that has partnered with Microsoft to expand access in unserved areas.
  • The address inventory is a single /20 block, indicating a consolidated allocation for the provider's network.

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

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS26077Nextlink Broadband60

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, 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 1 prefixes · 4.10K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS40197
Registry name
NBS-72
Registrant
Nextlink Broadband
Abuse contact
abuse@team.nxlink.com
Registered
2012-05-08
Last changed
2023-11-30
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS40197
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
2 naming AS40197

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: 447 networks and 1,849 prefixes, as published 2026-10-30. 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