AS19355 — SMRN-NET
AS19355 announces 6 IPv4 prefixes covering 4,608 addresses and 1 IPv6 prefixes.
About this network
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), and TEANET (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.
Announced prefixes
- 198.180.184.0/24
- 199.181.122.0/23
- 209.234.96.0/21
- 209.234.104.0/24
- 209.234.106.0/23
- 209.234.108.0/22
- 2607:ffa0::/32
Upstream networks
Adjacent networks
BGP / ASN / CIDR
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IPv4
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Search Results
IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED