[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ASREN (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Apr 26 17:05:37 UTC 2024
IPv4 R&E Routing Table Report 17:05 GMT Fri 26 Apr, 2024
IPv4 BGP Table (R&E) as seen at ASREN.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/
Analysis Summary
----------------
BGP routing table entries examined: 12718
Prefixes after maximum aggregation (per Origin AS): 7651
Deaggregation factor: 1.66
Unique aggregates announced (without unneeded subnets): 8397
Number of IPv4 prefixes with a valid ROA: 4022
Number of IPv4 prefixes with an invalid ROA: 0
Number of IPv4 prefixes with no ROA: 8696
Total ASes present in the Internet Routing Table: 1943
Prefixes per ASN: 6.55
Origin-only ASes present in the Internet Routing Table: 1673
Origin ASes announcing only one prefix: 786
Transit ASes present in the Internet Routing Table: 270
Transit-only ASes present in the Internet Routing Table: 53
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 15
Max AS path prepend of ASN ( 30116) 10
Prefixes from unregistered ASNs in the Routing Table: 10
Number of instances of unregistered ASNs: 10
Number of 32-bit ASNs allocated by the RIRs: 44271
Number of 32-bit ASNs visible in the Routing Table: 462
Prefixes from 32-bit ASNs in the Routing Table: 1198
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: 1
Number of addresses announced to Internet: 158228256
Equivalent to 9 /8s, 110 /16s and 95 /24s
Percentage of available address space announced: 4.3
Percentage of allocated address space announced: 4.3
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: 1271
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3089
Total APNIC prefixes after maximum aggregation: 1638
APNIC Deaggregation factor: 1.89
Prefixes being announced from the APNIC address blocks: 3089
Unique aggregates announced from the APNIC address blocks: 1730
APNIC Region origin ASes present in the Internet Routing Table: 388
APNIC Prefixes per ASN: 7.96
APNIC Region origin ASes announcing only one prefix: 181
APNIC Region transit ASes present in the Internet Routing Table: 39
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 13
Number of APNIC region 32-bit ASNs visible in the Routing Table: 156
Number of APNIC addresses announced to Internet: 37484608
Equivalent to 2 /8s, 59 /16s and 248 /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, 131072-153913
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: 5704
Total ARIN prefixes after maximum aggregation: 3114
ARIN Deaggregation factor: 1.83
Prefixes being announced from the ARIN address blocks: 5722
Unique aggregates announced from the ARIN address blocks: 3534
ARIN Region origin ASes present in the Internet Routing Table: 813
ARIN Prefixes per ASN: 7.04
ARIN Region origin ASes announcing only one prefix: 292
ARIN Region transit ASes present in the Internet Routing Table: 113
Average ARIN Region AS path length visible: 5.5
Max ARIN Region AS path length visible: 15
Number of ARIN region 32-bit ASNs visible in the Routing Table: 126
Number of ARIN addresses announced to Internet: 62603904
Equivalent to 3 /8s, 187 /16s and 66 /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, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 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: 2937
Total RIPE prefixes after maximum aggregation: 2446
RIPE Deaggregation factor: 1.20
Prefixes being announced from the RIPE address blocks: 2929
Unique aggregates announced from the RIPE address blocks: 2538
RIPE Region origin ASes present in the Internet Routing Table: 570
RIPE Prefixes per ASN: 5.14
RIPE Region origin ASes announcing only one prefix: 262
RIPE Region transit ASes present in the Internet Routing Table: 86
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 12
Number of RIPE region 32-bit ASNs visible in the Routing Table: 133
Number of RIPE addresses announced to Internet: 54874240
Equivalent to 3 /8s, 69 /16s and 80 /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,
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: 686
Total LACNIC prefixes after maximum aggregation: 400
LACNIC Deaggregation factor: 1.72
Prefixes being announced from the LACNIC address blocks: 685
Unique aggregates announced from the LACNIC address blocks: 527
LACNIC Region origin ASes present in the Internet Routing Table: 91
LACNIC Prefixes per ASN: 7.53
LACNIC Region origin ASes announcing only one prefix: 36
LACNIC Region transit ASes present in the Internet Routing Table: 18
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 10
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 36
Number of LACNIC addresses announced to Internet: 2593248
Equivalent to 0 /8s, 39 /16s and 145 /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: 292
Total AfriNIC prefixes after maximum aggregation: 45
AfriNIC Deaggregation factor: 6.49
Prefixes being announced from the AfriNIC address blocks: 292
Unique aggregates announced from the AfriNIC address blocks: 67
AfriNIC Region origin ASes present in the Internet Routing Table: 26
AfriNIC Prefixes per ASN: 11.23
AfriNIC Region origin ASes announcing only one prefix: 15
AfriNIC Region transit ASes present in the Internet Routing Table: 5
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 8
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 11
Number of AfriNIC addresses announced to Internet: 672000
Equivalent to 0 /8s, 10 /16s and 65 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 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
2907 596 2162 465 SINET-AS Research Organization of Infor
7497 443 180 24 CSTNET-AS-AP Computer Network Informati
4538 187 4193 75 ERX-CERNET-BKB China Education and Rese
58647 182 18 2 KAGAWAU-AS Kagawa University, JP
7575 170 329 114 AARNET-AS-AP Australian Academic and Re
55824 131 19 19 NKN-CORE-NW NKN Core Network, IN
2697 57 4 33 ERX-ERNET-AS Education and Research Net
132524 44 9 11 TIFR-AS Tata Institute of Fundamental R
9270 35 5 6 APAN-KR-AS National Infomation Society
24361 33 56 17 CNGI-NJ-IX-AS-AP CERNET2 IX at Southeas
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2152 466 507 94 CSUNET-NW, US
376 200 162 150 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
2920 174 34 7 LACOE, US
270 140 337 98 AS270, US
18558 139 18 4 NETBLK-RCOEK, US
32440 117 34 17 LONI, US
23024 108 7 22 OCDE, US
237 86 543 51 MERIT-AS-14, US
1736 79 16 1 MU-AS, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 284 1899 250 DFN Verein zur Foerderung eines Deutsch
786 186 1767 183 JANET Jisc Services Limited, GB
559 113 533 103 SWITCH Peering requests: peering at switch
1103 95 1503 83 SURFNET-NL SURFnet, The Netherlands, NL
2614 92 27 72 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnol
2200 63 598 58 FR-RENATER Reseau National de telecommu
200521 56 4 20 SEAP-AGE, ES
1653 53 151 50 SUNET SUNET Swedish University Network,
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 123 83 70 Rede Nacional de Ensino e Pesquisa, BR
11340 108 25 51 Red Universitaria Nacional, CL
2715 44 99 33 Fundacao Carlos Chagas Filho de Amparo
1251 35 32 25 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
263683 32 10 20 Universidad de Costa Rica, CR
20191 27 2 23 Pontificia Universidad Catolica de Chil
3597 21 16 2 Fundacion InnovaT, AR
28571 19 40 18 UNIVERSIDADE DE SAO PAULO, BR
27790 18 2 2 Universidad Nacional de Cordoba, AR
52888 16 7 8 UNIVERSIDADE FEDERAL DE SAO CARLOS, BR
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 142 82 3 KENET-AS, KE
327700 45 16 1 MoRENet, MZ
37215 36 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37654 13 1 7 RwEdNet-AS, RW
37182 4 8 1 TERNET, TZ
328903 4 0 1 RITER, CI
31960 3 0 2 EMUNET, MZ
22354 2 3 2 UNIV-DAR, TZ
37532 2 20 2 ZAMREN, ZM
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 596 2162 465 SINET-AS Research Organization of Infor
2152 466 507 94 CSUNET-NW, US
7497 443 180 24 CSTNET-AS-AP Computer Network Informati
680 284 1899 250 DFN Verein zur Foerderung eines Deutsch
376 200 162 150 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
4538 187 4193 75 ERX-CERNET-BKB China Education and Rese
786 186 1767 183 JANET Jisc Services Limited, GB
58647 182 18 2 KAGAWAU-AS Kagawa University, JP
2920 174 34 7 LACOE, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 443 419 CSTNET-AS-AP Computer Network Information Cente
2152 466 372 CSUNET-NW, US
5786 198 197 UPRENET, PR
58647 182 180 KAGAWAU-AS Kagawa University, JP
2920 174 167 LACOE, US
36914 142 139 KENET-AS, KE
18558 139 135 NETBLK-RCOEK, US
4538 187 112 ERX-CERNET-BKB China Education and Research Net
55824 131 112 NKN-CORE-NW NKN Core Network, IN
32440 117 100 LONI, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
11570 UNALLOCATED 192.94.216.0/24 40498 ABQG, US
11570 UNALLOCATED 192.207.226.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.106.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.107.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.108.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.188.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.189.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.190.0/24 40498 ABQG, US
11570 UNALLOCATED 204.134.85.0/24 40498 ABQG, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
192.31.196.0/24 Origin: 112 RESERVED, ZZ
192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:1 /10:1 /11:0 /12:9
/13:17 /14:34 /15:100 /16:1538 /17:281 /18:295
/19:368 /20:543 /21:585 /22:971 /23:1107 /24:6721
/25:37 /26:47 /27:63 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 133 142 KENET-AS, KE
32440 85 117 LONI, US
2152 51 466 CSUNET-NW, US
23024 51 108 OCDE, US
327700 39 45 MoRENet, MZ
200521 33 56 SEAP-AGE, ES
37215 30 36 MAREN, MW
25977 27 30 HCCS, US
26898 24 32 LNOCA-ORG, US
31638 21 21 ASN-LEPIDA, IT
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 5:15 8:2 12:1 14:91 24:3
31:1 35:4 38:2 40:1 41:88 42:12
44:4 45:20 46:5 49:7 50:1 58:15
59:9 60:6 61:2 62:6 63:2 64:15
66:9 67:32 68:2 69:8 70:2 71:1
72:7 74:12 76:34 77:4 78:3 79:10
80:8 81:25 82:3 83:6 84:6 85:24
87:1 89:11 91:39 93:4 94:2 95:2
96:5 101:5 102:5 103:194 104:68 108:2
109:5 114:1 116:8 118:19 119:20 121:11
123:8 124:42 128:60 129:22 130:81 131:49
132:18 133:157 134:75 136:196 137:55 138:57
139:4 140:21 141:3 142:18 143:11 144:23
145:2 146:120 147:21 148:7 149:12 150:9
151:3 152:98 153:6 154:8 155:39 156:135
157:13 158:26 159:114 160:29 161:12 162:8
163:68 164:14 165:8 167:4 168:29 169:6
170:10 172:1 173:7 175:15 176:8 177:4
179:10 180:14 182:1 184:1 185:42 186:2
187:2 188:11 189:3 190:7 191:2 192:1127
193:230 194:90 195:59 196:13 197:118 198:377
199:176 200:143 201:2 202:341 203:170 204:314
205:113 206:126 207:194 208:51 209:123 210:87
211:2 212:42 213:3 216:48 217:9 219:4
220:1 222:2 223:14
End of report
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