[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ASREN (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Wed Mar 22 17:05:37 UTC 2023
IPv4 R&E Routing Table Report 17:05 GMT Wed 22 Mar, 2023
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: 13649
Prefixes after maximum aggregation (per Origin AS): 8171
Deaggregation factor: 1.67
Unique aggregates announced (without unneeded subnets): 9070
Number of IPv4 prefixes with a valid ROA: 3721
Number of IPv4 prefixes with an invalid ROA: 0
Number of IPv4 prefixes with no ROA: 9928
Total ASes present in the Internet Routing Table: 2121
Prefixes per ASN: 6.44
Origin-only ASes present in the Internet Routing Table: 1838
Origin ASes announcing only one prefix: 841
Transit ASes present in the Internet Routing Table: 283
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: 4.5
Max AS path length visible: 14
Max AS path prepend of ASN (204437) 11
Prefixes from unregistered ASNs in the Routing Table: 3
Number of instances of unregistered ASNs: 3
Number of 32-bit ASNs allocated by the RIRs: 41495
Number of 32-bit ASNs visible in the Routing Table: 486
Prefixes from 32-bit ASNs in the Routing Table: 1323
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: 167960512
Equivalent to 10 /8s, 2 /16s and 223 /24s
Percentage of available address space announced: 4.5
Percentage of allocated address space announced: 4.5
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: 1453
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3475
Total APNIC prefixes after maximum aggregation: 1787
APNIC Deaggregation factor: 1.94
Prefixes being announced from the APNIC address blocks: 3476
Unique aggregates announced from the APNIC address blocks: 1962
APNIC Region origin ASes present in the Internet Routing Table: 445
APNIC Prefixes per ASN: 7.81
APNIC Region origin ASes announcing only one prefix: 206
APNIC Region transit ASes present in the Internet Routing Table: 47
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 12
Number of APNIC region 32-bit ASNs visible in the Routing Table: 180
Number of APNIC addresses announced to Internet: 38131808
Equivalent to 2 /8s, 69 /16s and 216 /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, 131072-151865
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: 6005
Total ARIN prefixes after maximum aggregation: 3501
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 6020
Unique aggregates announced from the ARIN address blocks: 3947
ARIN Region origin ASes present in the Internet Routing Table: 937
ARIN Prefixes per ASN: 6.42
ARIN Region origin ASes announcing only one prefix: 321
ARIN Region transit ASes present in the Internet Routing Table: 120
Average ARIN Region AS path length visible: 5.0
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 133
Number of ARIN addresses announced to Internet: 72128256
Equivalent to 4 /8s, 76 /16s and 151 /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, 393216-401308
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: 2913
Total RIPE prefixes after maximum aggregation: 2448
RIPE Deaggregation factor: 1.19
Prefixes being announced from the RIPE address blocks: 2903
Unique aggregates announced from the RIPE address blocks: 2529
RIPE Region origin ASes present in the Internet Routing Table: 566
RIPE Prefixes per ASN: 5.13
RIPE Region origin ASes announcing only one prefix: 258
RIPE Region transit ASes present in the Internet Routing Table: 84
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 126
Number of RIPE addresses announced to Internet: 55228032
Equivalent to 3 /8s, 74 /16s and 182 /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
196608-213403
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: 772
Total LACNIC prefixes after maximum aggregation: 382
LACNIC Deaggregation factor: 2.02
Prefixes being announced from the LACNIC address blocks: 768
Unique aggregates announced from the LACNIC address blocks: 560
LACNIC Region origin ASes present in the Internet Routing Table: 96
LACNIC Prefixes per ASN: 8.00
LACNIC Region origin ASes announcing only one prefix: 46
LACNIC Region transit ASes present in the Internet Routing Table: 19
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 9
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 36
Number of LACNIC addresses announced to Internet: 1659104
Equivalent to 0 /8s, 25 /16s and 80 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + 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: 481
Total AfriNIC prefixes after maximum aggregation: 50
AfriNIC Deaggregation factor: 9.62
Prefixes being announced from the AfriNIC address blocks: 481
Unique aggregates announced from the AfriNIC address blocks: 71
AfriNIC Region origin ASes present in the Internet Routing Table: 27
AfriNIC Prefixes per ASN: 17.81
AfriNIC Region origin ASes announcing only one prefix: 10
AfriNIC Region transit ASes present in the Internet Routing Table: 8
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 10
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 11
Number of AfriNIC addresses announced to Internet: 813056
Equivalent to 0 /8s, 12 /16s and 104 /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 600 2157 464 SINET-AS Research Organization of Infor
7497 433 182 24 CSTNET-AS-AP Computer Network Informati
4538 189 4192 73 ERX-CERNET-BKB China Education and Rese
58647 178 18 2 KAGAWAU-AS Kagawa University, JP
7575 173 329 119 AARNET-AS-AP Australian Academic and Re
55824 118 18 11 NKN-CORE-NW NKN Core Network, IN
4621 65 6 46 UNINET-AS-AP UNINET-, TH
2697 55 3 33 ERX-ERNET-AS Education and Research Net
45773 47 3 5 HECPERN-AS-PK PERN AS Content Servie Pr
9903 46 3 3 RIT-AS-AP Rajamangala Institute of Tech
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
5786 199 16 1 UPRENET, PR
2152 152 507 92 CSUNET-NW, US
18558 134 18 4 NETBLK-RCOEK, US
270 120 329 85 AS270, US
23024 111 7 19 OCDE, US
2920 109 34 7 LACOE, US
32440 99 18 21 LONI, US
32531 90 6 60 FORDHAM-UNIVERSITY, US
21976 85 51 18 NJEDGE-NET, US
376 81 22 60 RISQ-AS, CA
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
680 283 1919 249 DFN Verein zur Foerderung eines Deutsch
786 186 1775 183 JANET Jisc Services Limited, GB
559 113 533 105 SWITCH Peering requests: peering at switch
1103 95 1518 84 SURFNET-NL SURFnet, The Netherlands, NL
2614 94 27 74 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol
2200 64 599 59 FR-RENATER Reseau National de telecommu
200521 55 4 21 SEAP-AGE, ES
1653 50 151 47 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 213 79 103 Rede Nacional de Ensino e Pesquisa, BR
11340 104 24 47 Red Universitaria Nacional, CL
1251 59 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
263683 32 10 20 Universidad de Costa Rica, CR
28571 31 38 13 UNIVERSIDADE DE SAO PAULO, BR
20191 28 16 1 Pontificia Universidad Catolica de Chil
61468 27 2 14 CEDIA, EC
3597 23 2 17 Fundacion InnovaT, AR
27790 18 2 2 Universidad Nacional de Cordoba, AR
28609 16 1 1 Instituto Nupef, 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 247 82 3 KENET-AS, KE
327687 60 28 3 RENU, UG
3208 32 2 1 ARN, DZ
37182 32 8 1 TERNET, TZ
327700 31 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37654 10 1 6 RwEdNet-AS, RW
2561 7 0 5 EUN, EG
328358 5 1 1 Makerere-AS, UG
30983 4 4 1 MARWAN-AS, MA
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 600 2157 464 SINET-AS Research Organization of Infor
7497 433 182 24 CSTNET-AS-AP Computer Network Informati
680 283 1919 249 DFN Verein zur Foerderung eines Deutsch
36914 247 82 3 KENET-AS, KE
1916 213 79 103 Rede Nacional de Ensino e Pesquisa, BR
5786 199 16 1 UPRENET, PR
4538 189 4192 73 ERX-CERNET-BKB China Education and Rese
786 186 1775 183 JANET Jisc Services Limited, GB
58647 178 18 2 KAGAWAU-AS Kagawa University, JP
7575 173 329 119 AARNET-AS-AP Australian Academic and Re
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 433 409 CSTNET-AS-AP Computer Network Information Cente
36914 247 244 KENET-AS, KE
5786 199 198 UPRENET, PR
58647 178 176 KAGAWAU-AS Kagawa University, JP
18558 134 130 NETBLK-RCOEK, US
4538 189 116 ERX-CERNET-BKB China Education and Research Net
1916 213 110 Rede Nacional de Ensino e Pesquisa, BR
55824 118 107 NKN-CORE-NW NKN Core Network, IN
2920 109 102 LACOE, US
23024 111 92 OCDE, 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
18621 UNALLOCATED 142.156.0.0/16 26677 ORION-ASN, CA
33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, 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 UNASSIGNED
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 /10:2 /11:0 /12:9
/13:17 /14:33 /15:102 /16:1627 /17:291 /18:307
/19:411 /20:595 /21:629 /22:1017 /23:1148 /24:7278
/25:49 /26:58 /27:75 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 234 247 KENET-AS, KE
32440 79 99 LONI, US
23024 51 111 OCDE, US
1916 38 213 Rede Nacional de Ensino e Pesquisa, BR
200521 32 55 SEAP-AGE, ES
37182 31 32 TERNET, TZ
25977 27 30 HCCS, US
327700 26 31 MoRENet, MZ
36794 24 26 SCOCA, 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 14:89 23:4
24:3 31:1 35:6 38:5 41:134 42:11
44:4 45:19 46:6 49:6 58:12 59:9
60:4 61:2 62:6 63:4 64:30 65:1
66:5 67:33 68:1 69:9 70:2 72:7
74:16 76:40 77:4 78:3 79:10 80:8
81:27 82:2 83:6 84:6 85:24 86:1
87:1 89:10 91:35 93:4 94:2 95:2
96:5 101:4 102:7 103:214 104:72 108:6
109:3 110:2 111:16 114:1 116:6 118:18
119:21 121:28 122:8 123:8 124:38 125:1
128:63 129:29 130:84 131:50 132:43 133:157
134:66 136:198 137:82 138:9 139:5 140:30
141:1 142:38 143:21 144:23 145:2 146:119
147:21 148:7 149:12 150:99 151:7 152:30
153:6 154:6 155:40 156:66 157:22 158:32
159:114 160:27 161:17 162:14 163:72 164:8
165:11 167:13 168:57 169:8 170:15 172:2
173:7 175:25 177:4 179:10 180:14 182:1
185:33 186:1 187:2 188:12 189:3 190:14
191:1 192:1193 193:268 194:92 195:57 196:26
197:151 198:353 199:199 200:230 201:21 202:472
203:257 204:298 205:76 206:137 207:114 208:59
209:105 210:89 211:1 212:43 213:2 216:53
217:10 219:11 220:5 222:3 223:9
End of report
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