Autonomous system
AS33727 SUMOFIBER-BOZEMAN
Unclassified ARIN Cable/DSL/ISP
Summary
Sumofiber
fiber isp regional residential
The AS handle SUMOFIBER-BOZEMAN is held by Sumofiber.
What it's used for
- The address space carries fiber internet service for residential and business customers in Bozeman, Montana, as indicated by the netname
SUMOFIBER-NET-38-148-0-0-1and the registrantSumofiber. - The AS announces 2048 IPv4 addresses within a single /21 prefix and one IPv6 /32 prefix, while maintaining only 3 observed routing neighbours, a ratio consistent with a regional access network rather than a transit provider.
Notable
- The RDAP registrant
Sumofiberaligns directly with the AS holder name, confirming consistent ownership of the announced address space. - The inventory consists of a single contiguous IPv4 block and one IPv6 prefix, reflecting a focused, site-specific deployment typical of a local fiber operator.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 1 downstream and 3 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS62494 | UTOPIA | 34 |
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 1 prefixes · 2.05K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS33727- Registry name
- SUMOFIBER-BOZEMAN
- Registrant
- Sumofiber
- Abuse contact
- abuse@sumofiber.com
- Registered
- 2023-07-25
- Last changed
- 2024-07-25
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- SUMOFIBER BOZEMAN
- Network type
- Cable/DSL/ISP
- Scope
- Regional
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
AS-SUMOBOZEMAN:AS-CUSTOMERS- Website
- https://sumofiber.com
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
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS33727
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 2 naming AS33727
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: 442 networks and 1,773 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