Autonomous system
AS19355 SMRN-NET
Unclassified ARIN
Summary
San Mateo Regional Network
government municipal network us
The AS handle SMRN-NET is held by San Mateo Regional Network, Inc.
What it's used for
- The address space carries municipal and regional network infrastructure, evidenced by netnames
SMRN-BLK-1,SSFNET(City of South San Francisco), andTEANET(Telecommunications Engineering Associates). - With 4608 IPv4 addresses announced across 10 prefixes and only 3 observed neighbours, the ratio indicates a local access or municipal network rather than a transit provider.
Notable
- Registrants largely align with the announcer, including San Mateo Regional Network, Inc., City of South San Francisco, and Telecommunications Engineering Associates.
- The inventory consists of finely subdivided IPv4 blocks and a contiguous range of IPv6 prefixes under
2607:ffa0::/47, reflecting a structured internal corporate or municipal estate.
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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 10 prefixes · 4.61K addresses IPv6 16 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 26 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS19355- Registry name
- SMRN-NET
- Registrant
- San Mateo Regional Network, Inc.
- Abuse contact
- daryl@tcomeng.com
- Registered
- 2000-12-20
- Last changed
- 2012-03-20
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 10 with no ROA
- ROAs
- 0 authorising AS19355
- ASPA
- no ASPA record
- IRR
- 100% registered · 10 of 10 announcements
- Route objects
- 13 naming AS19355
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 1,781 prefixes, as published 2026-10-16. 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