[REN-BGP-stats-all] IPv4 R&E Routing Table Report - BDREN (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Feb 25 19:05:43 UTC 2025
IPv4 R&E Routing Table Report 19:05 GMT Tue 25 Feb, 2025
IPv4 BGP Table (R&E) as seen at BDREN.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/BDREN/
Analysis Summary
----------------
BGP routing table entries examined: 6919
Prefixes after maximum aggregation (per Origin AS): 3219
Deaggregation factor: 2.15
Unique aggregates announced (without unneeded subnets): 3998
Number of IPv4 prefixes with a valid ROA: 2964
Number of IPv4 prefixes with an invalid ROA: 1
Number of IPv4 prefixes with no ROA: 3954
Total ASes present in the Internet Routing Table: 809
Prefixes per ASN: 8.55
Origin-only ASes present in the Internet Routing Table: 683
Origin ASes announcing only one prefix: 280
Transit ASes present in the Internet Routing Table: 126
Transit-only ASes present in the Internet Routing Table: 47
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 6.4
Max AS path length visible: 12
Max AS path prepend of ASN (136911) 11
Prefixes from unregistered ASNs in the Routing Table: 0
Number of instances of unregistered ASNs: 0
Number of 32-bit ASNs allocated by the RIRs: 46198
Number of 32-bit ASNs visible in the Routing Table: 270
Prefixes from 32-bit ASNs in the Routing Table: 779
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 0
Number of addresses announced to Internet: 36820736
Equivalent to 2 /8s, 49 /16s and 215 /24s
Percentage of available address space announced: 1.0
Percentage of allocated address space announced: 1.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 435
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3009
Total APNIC prefixes after maximum aggregation: 1196
APNIC Deaggregation factor: 2.52
Prefixes being announced from the APNIC address blocks: 3010
Unique aggregates announced from the APNIC address blocks: 1428
APNIC Region origin ASes present in the Internet Routing Table: 360
APNIC Prefixes per ASN: 8.36
APNIC Region origin ASes announcing only one prefix: 137
APNIC Region transit ASes present in the Internet Routing Table: 46
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 12
Number of APNIC region 32-bit ASNs visible in the Routing Table: 168
Number of APNIC addresses announced to Internet: 21367808
Equivalent to 1 /8s, 70 /16s and 12 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-155961
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 1939
Total ARIN prefixes after maximum aggregation: 1400
ARIN Deaggregation factor: 1.39
Prefixes being announced from the ARIN address blocks: 1938
Unique aggregates announced from the ARIN address blocks: 1744
ARIN Region origin ASes present in the Internet Routing Table: 245
ARIN Prefixes per ASN: 7.91
ARIN Region origin ASes announcing only one prefix: 90
ARIN Region transit ASes present in the Internet Routing Table: 37
Average ARIN Region AS path length visible: 7.1
Max ARIN Region AS path length visible: 11
Number of ARIN region 32-bit ASNs visible in the Routing Table: 40
Number of ARIN addresses announced to Internet: 9545984
Equivalent to 0 /8s, 145 /16s and 169 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-402332
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8,
67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8,
74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8,
100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8,
131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8,
139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8,
148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8,
159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8,
167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8,
184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8,
207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 140
Total RIPE prefixes after maximum aggregation: 22
RIPE Deaggregation factor: 6.36
Prefixes being announced from the RIPE address blocks: 138
Unique aggregates announced from the RIPE address blocks: 24
RIPE Region origin ASes present in the Internet Routing Table: 11
RIPE Prefixes per ASN: 12.55
RIPE Region origin ASes announcing only one prefix: 5
RIPE Region transit ASes present in the Internet Routing Table: 4
Average RIPE Region AS path length visible: 6.3
Max RIPE Region AS path length visible: 11
Number of RIPE region 32-bit ASNs visible in the Routing Table: 3
Number of RIPE addresses announced to Internet: 185856
Equivalent to 0 /8s, 2 /16s and 214 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8,
81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8,
88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8,
95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8,
185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 1380
Total LACNIC prefixes after maximum aggregation: 493
LACNIC Deaggregation factor: 2.80
Prefixes being announced from the LACNIC address blocks: 1382
Unique aggregates announced from the LACNIC address blocks: 667
LACNIC Region origin ASes present in the Internet Routing Table: 139
LACNIC Prefixes per ASN: 9.94
LACNIC Region origin ASes announcing only one prefix: 46
LACNIC Region transit ASes present in the Internet Routing Table: 22
Average LACNIC Region AS path length visible: 7.9
Max LACNIC Region AS path length visible: 11
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 58
Number of LACNIC addresses announced to Internet: 3975168
Equivalent to 0 /8s, 60 /16s and 168 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 451
Total AfriNIC prefixes after maximum aggregation: 108
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 451
Unique aggregates announced from the AfriNIC address blocks: 135
AfriNIC Region origin ASes present in the Internet Routing Table: 7
AfriNIC Prefixes per ASN: 64.43
AfriNIC Region origin ASes announcing only one prefix: 2
AfriNIC Region transit ASes present in the Internet Routing Table: 2
Average AfriNIC Region AS path length visible: 6.2
Max AfriNIC Region AS path length visible: 8
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1
Number of AfriNIC addresses announced to Internet: 1745920
Equivalent to 0 /8s, 26 /16s and 164 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7497 451 180 24 CSTNET-AS-AP Computer Network Information
1237 192 74 146 KREONET-AS-KR KISTI, KR
55824 146 19 20 NKN-CORE-NW NKN Core Network, IN
4538 140 4192 71 ERX-CERNET-BKB China Education and Resear
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha
4621 69 37 10 UNINET-AS-AP UNINET-, TH
23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR
2697 57 4 33 ERX-ERNET-AS Education and Research Netwo
38280 50 3 2 MONASHUNI-MY-AS-AP Monash University Sunw
9317 49 16 1 ITISNET-AS INHA UNIVERSITY, KR
Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2152 383 39 259 CENIC-2152, US
376 202 162 151 RISQ-AS, CA
15296 65 5 55 CYBERA, CA
271 53 25 42 BCNET-AS, CA
2920 53 10 45 LACOE, US
611 46 84 31 NECN-1-611, CA
16796 42 19 15 MERLIN-NET, CA
393249 42 68 34 UBC, CA
4193 32 160 29 WA-STATE-GOV, US
399844 30 2 21 SASK-CNET, CA
Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8895 110 24 5 ISU Internet Services Unit ISU, SA
29384 11 3 8 QATAR-FOUNDATION, QA
50517 8 2 1 KSU, SA
56714 2 0 1 IAU, SA
206350 2 0 1 OMREN, OM
209464 2 0 1 KSAU, SA
15488 1 16 1 UPV-EHU, ES
28885 1 0 1 OMANTEL-NAP-AS OmanTel NAP, OM
34945 1 0 1 QF-HBKU-ASN, QA
51946 1 0 1 NEWCASTLE-UNI-NUSAJAYA-CAMPUS, GB
Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 236 178 41 Rede Nacional de Ensino e Pesquisa, BR
28391 157 10 69 Universidad Juarez Autonoma de Tabasco, M
11340 105 24 51 Red Universitaria Nacional, CL
271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
4270 53 16 1 Red de Interconexion Universitaria, AR
61468 52 5 17 CEDIA, EC
2715 49 99 35 Fundacao Carlos Chagas Filho de Amparo a
28614 38 2 2 Fundacao Universidade Regional de Blumena
1251 37 31 26 FUNDACAO DE AMPARO A PESQUISA DO ESTADO S
3596 37 8 4 Universidad Autonoma Metropolitana, MX
Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2018 380 319 71 TENET-1, ZA
8094 47 48 18 PUKNET, ZA
37501 11 49 6 UOFS, ZA
36982 8 33 8 UCT, ZA
37520 3 16 3 Rhodes-Univ, ZA
6149 1 0 1 TENET-2, ZA
329418 1 0 1 International-Centre-Research-Agroforestr
Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
7497 451 180 24 CSTNET-AS-AP Computer Network Information
2152 383 39 259 CENIC-2152, US
2018 380 319 71 TENET-1, ZA
1916 236 178 41 Rede Nacional de Ensino e Pesquisa, BR
376 202 162 151 RISQ-AS, CA
1237 192 74 146 KREONET-AS-KR KISTI, KR
28391 157 10 69 Universidad Juarez Autonoma de Tabasco, M
55824 146 19 20 NKN-CORE-NW NKN Core Network, IN
4538 140 4192 71 ERX-CERNET-BKB China Education and Resear
8895 110 24 5 ISU Internet Services Unit ISU, SA
Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
2018 380 309 TENET-1, ZA
1916 236 195 Rede Nacional de Ensino e Pesquisa, BR
55824 146 126 NKN-CORE-NW NKN Core Network, IN
2152 383 124 CENIC-2152, US
8895 110 105 ISU Internet Services Unit ISU, SA
28391 157 88 Universidad Juarez Autonoma de Tabasco, MX
4762 75 74 MAHIDOL-BORDER-AS Mahidol University, Thailand,
4538 140 69 ERX-CERNET-BKB China Education and Research Net
271640 67 66 UNIVERSIDADE FEDERAL DE VICOSA, BR
4621 69 59 UNINET-AS-AP UNINET-, TH
Complete listing at https://bgp.nsrc.org/REN/BDREN/data-CIDRnet
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:0 /10:0 /11:0 /12:6
/13:11 /14:16 /15:51 /16:272 /17:88 /18:109
/19:149 /20:266 /21:267 /22:497 /23:604 /24:4583
/25:0 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8895 107 110 ISU Internet Services Unit ISU, SA
2152 55 383 CENIC-2152, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
61468 25 52 CEDIA, EC
28068 18 22 Universidad Nacional de San Luis, AR
16796 16 42 MERLIN-NET, CA
28609 16 16 Instituto Nupef, BR
15121 15 16 CALTEL-COM, US
26421 11 15 PONDEROSA-INTERNET, US
18632 7 20 VOLCANO-VISION, US
Complete listing at https://bgp.nsrc.org/REN/BDREN/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 14:93 23:3 38:1 42:10 45:30
49:8 50:2 59:19 60:6 61:3 62:1
63:1 64:4 66:18 67:2 74:1 76:1
86:3 91:3 96:5 102:1 103:273 104:3
111:21 113:1 114:24 116:9 117:61 118:33
119:30 121:27 122:8 123:8 124:42 125:3
128:3 129:2 130:2 131:21 132:21 134:37
137:48 139:3 140:2 142:42 143:14 144:24
146:129 147:5 148:190 150:16 152:48 154:25
155:17 157:22 158:29 159:99 160:5 161:8
162:5 163:3 165:38 167:21 168:68 170:82
175:16 177:4 179:13 180:15 181:1 182:12
185:4 186:3 187:22 189:3 190:33 191:3
192:243 193:1 195:1 196:145 198:251 199:114
200:321 201:37 202:401 203:234 204:80 205:114
206:84 207:152 208:7 209:74 210:218 211:3
212:105 216:22 218:23 219:2 220:16 222:2
223:15
End of report
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