ผลการตรวจสอบ ASN AS2856 British Telecommunications Limited — ขนาดเครือข่าย เส้นทาง BGP และการจดทะเบียน
IPv4 addresses
13,947,136
545 announced prefixes
IPv6 addresses
1.07 × 10³¹
7 announced prefixes
BGP neighbours
…
CAIDA rank
#330
Customer cone 157 ASNs
Estimated users
17.4M
APNIC: 17.4M
RPKI
71% valid
3 invalid · 157 not covered
Average purity
88
4,694 sampled IPs
IXPs / facilities
2 / 3
Operator self-reported
History
How prefixes were announced and changed hands, registration changes, and outage or hijack incidents.
Loading routing history…
IP ranges
Currently announced prefixes with their RIR registration and geolocation.
| Prefix | RPKI | Registration | Geolocation | Addresses |
|---|---|---|---|---|
| 86.128.0.0/10 | Valid | 4,194,304 | ||
| 81.128.0.0/11 | Valid | 2,097,152 | ||
| 86.128.0.0/11 | Valid | 2,097,152 | ||
| 81.128.0.0/12 | Valid | 1,048,576 | ||
| 86.128.0.0/12 | Valid | 1,048,576 | ||
| 109.144.0.0/12 | Valid | 1,048,576 | ||
| 217.32.0.0/12 | Valid | 1,048,576 | ||
| 31.48.0.0/13 | Valid | 524,288 | ||
| 95.144.0.0/13 | Valid | 524,288 | ||
| 31.100.0.0/14 | Valid | 262,144 | ||
| 31.112.0.0/14 | Valid | 262,144 | ||
| 31.116.0.0/14 | Valid | 262,144 | ||
| 147.148.0.0/14 | Valid | 262,144 | ||
| 194.72.0.0/14 | Valid | 262,144 | ||
| 213.120.0.0/14 | Valid | 262,144 | ||
| 5.80.0.0/15 | Valid | 131,072 | ||
| 31.90.0.0/15 | Valid | 131,072 | ||
| 31.92.0.0/15 | Valid | 131,072 | ||
| 31.106.0.0/15 | Valid | 131,072 | ||
| 31.122.0.0/15 | Valid | 131,072 |
Only the first 500 prefixes are listed; address counts and geography use all prefixes.
/24 block profile
One square per /24: colour shows the risk type, shade how many addresses are flagged, stripes mark datacenter blocks. Click a square to see all 256 addresses.
/24s with data 2,396 / 54,481 (4%) · flagged 182
Hover a square for its numbers; click to see all 256 addresses.
Each prefix shows its 64 /24s with the most data. Built daily from lookups, neighbour sampling, public lists and block screening.
IP reputation
IPs from this network that CleanIP has analysed: purity, abuse reports and the riskiest /24 blocks.
Purity distribution
0.03%
Share of IPv4 reported or blocklisted
3,570
Listed IPs
4,694
Analysed IPs
Riskiest /24 blocks
| /24 block | Flagged | Analysed |
|---|---|---|
| 31.94.16.0/24 | 3 | 44 |
| 31.94.6.0/24 | 2 | 56 |
| 151.245.206.0/24 | 2 | 2 |
| 31.94.37.0/24 | 1 | 41 |
| 31.94.66.0/24 | 1 | 19 |
| 31.94.30.0/24 | 1 | 16 |
| 31.94.28.0/24 | 1 | 12 |
| 151.245.204.0/24 | 1 | 3 |
| 109.157.226.0/24 | 1 | 1 |
| 151.245.205.0/24 | 1 | 1 |
Flagged = VPN, proxy, Tor or purity below 50. Samples come from user lookups and neighbour sampling, not every address in this network.
Geography
Where this network’s IPv4 addresses are located.
United Kingdom100.0%
Germany0.0%
United States0.0%
Lithuania0.0%
Greece0.0%
- Scope
- Single country
- In registered country
- 100.0%
Estimated by sampling IPv4 ranges against a geolocation database.
การสังเกตการณ์ทราฟฟิก
AS2856 · 7 วันล่าสุดการนำไปใช้และการใช้งาน
การนำโปรโตคอลสำคัญไปใช้และสัดส่วนการใช้งาน
ความปลอดภัยและการโจมตี
ข้อมูลเชิงลึกเกี่ยวกับทราฟฟิกการโจมตีในชั้นเครือข่ายและชั้นแอปพลิเคชัน
การประกาศ BGP
จำนวนการประกาศเส้นทาง BGP รายชั่วโมงใน 7 วันล่าสุด
ข้อมูล: Cloudflare Radar เผยแพร่ภายใต้สัญญาอนุญาต CC BY-NC 4.0
Activity
Hourly traffic over the last 7 days, normalized to this network’s peak.
A pronounced day/night rhythm, typical of networks with human users.
| 00 | 06 | 12 | 18 | |||||||||||||||||||||
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- Peak hour
- 19:00–20:00
- Active hours
- 17 hrs
- Weekend vs weekday
- Weekdays ≈ weekends
- Busiest day
- Tue
ดาต้าเซ็นเตอร์ที่มีจุดให้บริการ
WHOIS record
The registry’s record for this AS number: holder, status, dates and contacts.
Sources
Where the information on this page comes from and when it was updated.
| Information | Source | Updated |
|---|---|---|
| Registered country | RIR daily delegation statistics | 2026-10-22 |
| Registered address & allocation date | RIR registration data (RDAP) | 2026-09-26 |
| Organization & company country | AS-to-organization data | 2026-10-22 |
| Network type | CleanIP ASN canon | 2026-10-22 |
| Exchanges & facilities | Operator self-reported interconnection data | 2026-10-22 |
| Announced prefixes & BGP neighbours | Public BGP routing data | 2026-10-22 |
| IPv4 geography | Geolocation database | — |
| RPKI validation | RPKI ROA validation data | 2026-10-22 |
| Rank & customer cone | CAIDA AS Rank | 2026-10-01 |
| Estimated users (APNIC) | APNIC Labs user estimates | 2026-10-20 |
| Network tags | Public routing data community tags | 2026-10-22 |
| IP reputation | CleanIP lookups and neighbour sampling | — |
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