[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ASREN (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Fri Apr 1 17:05:31 UTC 2022
IPv4 R&E Routing Table Report 17:05 GMT Fri 01 Apr, 2022
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: 13723
Prefixes after maximum aggregation (per Origin AS): 8319
Deaggregation factor: 1.65
Unique aggregates announced (without unneeded subnets): 9091
Number of IPv4 prefixes with a valid ROA: 3407
Number of IPv4 prefixes with an invalid ROA: 0
Number of IPv4 prefixes with no ROA: 10316
Total ASes present in the Internet Routing Table: 2188
Prefixes per ASN: 6.27
Origin-only ASes present in the Internet Routing Table: 1895
Origin ASes announcing only one prefix: 902
Transit ASes present in the Internet Routing Table: 293
Transit-only ASes present in the Internet Routing Table: 36
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 15
Max AS path prepend of ASN (211089) 11
Prefixes from unregistered ASNs in the Routing Table: 4
Number of instances of unregistered ASNs: 4
Number of 32-bit ASNs allocated by the RIRs: 38968
Number of 32-bit ASNs visible in the Routing Table: 488
Prefixes from 32-bit ASNs in the Routing Table: 1342
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 2
Number of addresses announced to Internet: 175231008
Equivalent to 10 /8s, 113 /16s and 208 /24s
Percentage of available address space announced: 4.7
Percentage of allocated address space announced: 4.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.5
Total number of prefixes smaller than registry allocations: 1341
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3286
Total APNIC prefixes after maximum aggregation: 1716
APNIC Deaggregation factor: 1.91
Prefixes being announced from the APNIC address blocks: 3287
Unique aggregates announced from the APNIC address blocks: 1842
APNIC Region origin ASes present in the Internet Routing Table: 425
APNIC Prefixes per ASN: 7.73
APNIC Region origin ASes announcing only one prefix: 194
APNIC Region transit ASes present in the Internet Routing Table: 51
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 13
Number of APNIC region 32-bit ASNs visible in the Routing Table: 166
Number of APNIC addresses announced to Internet: 38285792
Equivalent to 2 /8s, 72 /16s and 49 /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: 6087
Total ARIN prefixes after maximum aggregation: 3673
ARIN Deaggregation factor: 1.66
Prefixes being announced from the ARIN address blocks: 6101
Unique aggregates announced from the ARIN address blocks: 4146
ARIN Region origin ASes present in the Internet Routing Table: 982
ARIN Prefixes per ASN: 6.21
ARIN Region origin ASes announcing only one prefix: 363
ARIN Region transit ASes present in the Internet Routing Table: 118
Average ARIN Region AS path length visible: 5.1
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 131
Number of ARIN addresses announced to Internet: 77103680
Equivalent to 4 /8s, 152 /16s and 130 /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: 2864
Total RIPE prefixes after maximum aggregation: 2416
RIPE Deaggregation factor: 1.19
Prefixes being announced from the RIPE address blocks: 2853
Unique aggregates announced from the RIPE address blocks: 2468
RIPE Region origin ASes present in the Internet Routing Table: 562
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 264
RIPE Region transit ASes present in the Internet Routing Table: 86
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 15
Number of RIPE region 32-bit ASNs visible in the Routing Table: 118
Number of RIPE addresses announced to Internet: 55205888
Equivalent to 3 /8s, 74 /16s and 96 /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: 1082
Total LACNIC prefixes after maximum aggregation: 441
LACNIC Deaggregation factor: 2.45
Prefixes being announced from the LACNIC address blocks: 1080
Unique aggregates announced from the LACNIC address blocks: 540
LACNIC Region origin ASes present in the Internet Routing Table: 137
LACNIC Prefixes per ASN: 7.88
LACNIC Region origin ASes announcing only one prefix: 58
LACNIC Region transit ASes present in the Internet Routing Table: 20
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 13
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 50
Number of LACNIC addresses announced to Internet: 3686400
Equivalent to 0 /8s, 56 /16s and 64 /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: 400
Total AfriNIC prefixes after maximum aggregation: 69
AfriNIC Deaggregation factor: 5.80
Prefixes being announced from the AfriNIC address blocks: 400
Unique aggregates announced from the AfriNIC address blocks: 93
AfriNIC Region origin ASes present in the Internet Routing Table: 42
AfriNIC Prefixes per ASN: 9.52
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 9
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 9
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 23
Number of AfriNIC addresses announced to Internet: 948736
Equivalent to 0 /8s, 14 /16s and 122 /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 586 2084 457 SINET-AS Research Organization of Infor
7497 432 182 24 CSTNET-AS-AP Computer Network Informati
4538 189 4192 73 ERX-CERNET-BKB China Education and Rese
58647 179 18 2 KAGAWAU-AS Kagawa University, JP
7575 176 330 123 AARNET-AS-AP Australian Academic and Re
55824 114 18 10 NKN-CORE-NW NKN Core Network, IN
2697 53 3 32 ERX-ERNET-AS Education and Research Net
132524 49 9 11 TIFR-AS Tata Institute of Fundamental R
45773 47 3 5 HECPERN-AS-PK PERN AS Content Servie Pr
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
376 202 178 151 RISQ-AS, CA
5786 200 16 1 UPRENET, PR
2152 147 507 88 CSUNET-NW, US
18558 135 18 4 NETBLK-RCOEK, US
270 120 329 88 AS270, US
23024 112 7 22 OCDE, US
2920 111 34 6 LACOE, US
21976 85 51 18 NJEDGE-NET, US
1736 80 16 1 MU-AS, US
3477 71 71 40 NOAA-NWAVE, 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
680 279 1967 245 DFN Verein zur Foerderung eines Deutsch
786 186 1774 183 JANET Jisc Services Limited, GB
559 115 550 106 SWITCH Peering requests: peering at switch
1103 99 1520 86 SURFNET-NL SURFnet, The Netherlands, NL
2614 97 28 69 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
2200 66 647 61 FR-RENATER Reseau National de telecommu
1930 58 81 53 RCCN Fundacao para a Ciencia e a Tecnol
1653 51 167 48 SUNET SUNET Swedish University Network,
1741 40 165 19 FUNETAS, FI
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 175 207 45 Rede Nacional de Ensino e Pesquisa, BR
11340 94 24 54 Red Universitaria Nacional, CL
1251 60 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
19611 45 17 2 Associacao Antonio Vieira - Unisinos, B
4270 44 16 1 Red de Interconexion Universitaria, AR
61468 41 3 15 CEDIA, EC
28571 35 26 15 UNIVERSIDADE DE SAO PAULO, BR
20191 31 16 1 Pontificia Universidad Catolica de Chil
271640 27 8 1 UNIVERSIDADE FEDERAL DE VICOSA, 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 214 82 3 KENET-AS, KE
327687 37 28 3 RENU, UG
327700 34 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37182 12 8 1 TERNET, TZ
37074 10 7 7 UG-AS, GH
2561 7 0 5 EUN, EG
37215 7 8 1 MAREN, MW
31960 5 1 1 EMUNET, MZ
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 586 2084 457 SINET-AS Research Organization of Infor
7497 432 182 24 CSTNET-AS-AP Computer Network Informati
680 279 1967 245 DFN Verein zur Foerderung eines Deutsch
36914 214 82 3 KENET-AS, KE
376 202 178 151 RISQ-AS, CA
5786 200 16 1 UPRENET, PR
4538 189 4192 73 ERX-CERNET-BKB China Education and Rese
786 186 1774 183 JANET Jisc Services Limited, GB
58647 179 18 2 KAGAWAU-AS Kagawa University, JP
7575 176 330 123 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 432 408 CSTNET-AS-AP Computer Network Information Cente
36914 214 211 KENET-AS, KE
5786 200 199 UPRENET, PR
58647 179 177 KAGAWAU-AS Kagawa University, JP
18558 135 131 NETBLK-RCOEK, US
1916 175 130 Rede Nacional de Ensino e Pesquisa, BR
4538 189 116 ERX-CERNET-BKB China Education and Research Net
2920 111 105 LACOE, US
55824 114 104 NKN-CORE-NW NKN Core Network, IN
23024 112 90 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
22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US
22226 UNALLOCATED 156.1.0.0/16 2152 CSUNET-NW, US
19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US
395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-spar
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
192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Transit: 20965 GEANT The GEANT IP Service, 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
/13:16 /14:33 /15:102 /16:1734 /17:281 /18:313
/19:437 /20:653 /21:669 /22:1078 /23:1134 /24:7132
/25:43 /26:45 /27:41 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 201 214 KENET-AS, KE
23024 53 112 OCDE, US
327700 30 34 MoRENet, MZ
25977 29 43 HCCS, US
31638 21 21 ASN-LEPIDA, IT
2614 19 97 ROEDUNET, RO
3233 19 29 ICI-ROTLD Romanian National R&D Network, RO
1916 18 175 Rede Nacional de Ensino e Pesquisa, BR
22742 18 69 CT-EDU-NET, US
28068 18 21 Universidad Nacional de San Luis, AR
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
5:15 8:2 12:1 14:85 23:4 24:3
31:3 37:6 38:5 41:121 42:11 44:4
45:21 46:6 49:10 58:10 59:9 60:4
61:2 62:6 63:4 64:29 66:6 67:39
68:1 69:16 70:2 71:1 72:9 74:16
77:7 78:3 79:10 80:7 81:27 82:1
83:6 84:6 85:19 86:4 87:1 88:1
89:10 91:32 93:23 94:2 95:5 96:5
101:4 102:11 103:228 104:67 108:8 109:3
110:3 111:20 114:1 116:5 118:18 119:22
121:27 122:8 124:39 125:1 128:61 129:35
130:81 131:79 132:53 133:140 134:66 136:192
137:73 138:8 139:4 140:33 141:1 142:40
143:23 144:23 145:2 146:114 147:22 148:7
149:12 150:28 151:6 152:64 153:6 154:3
155:25 156:67 157:26 158:39 159:115 160:25
161:18 162:12 163:60 164:14 165:16 166:1
167:11 168:56 169:9 170:44 172:2 173:5
175:19 177:9 179:8 180:16 182:6 184:4
185:26 186:2 187:3 188:12 189:5 190:33
191:16 192:1193 193:231 194:94 195:49 196:24
197:119 198:382 199:209 200:220 201:23 202:344
203:194 204:300 205:143 206:150 207:147 208:54
209:96 210:85 211:2 212:21 213:2 216:55
217:10 219:11 220:1 222:4 223:4
End of report
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