Global R&E Routing Table Report 17:05 GMT Fri 17 Sep, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/ Analysis Summary ---------------- BGP routing table entries examined: 14243 Prefixes after maximum aggregation (per Origin AS): 8341 Deaggregation factor: 1.71 Unique aggregates announced (without unneeded subnets): 9188 Total ASes present in the Internet Routing Table: 2123 Prefixes per ASN: 6.71 Origin-only ASes present in the Internet Routing Table: 1832 Origin ASes announcing only one prefix: 875 Transit ASes present in the Internet Routing Table: 291 Transit-only ASes present in the Internet Routing Table: 32 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 15 Max AS path prepend of ASN (211089) 11 Prefixes from unregistered ASNs in the Routing Table: 5 Number of instances of unregistered ASNs: 5 Number of 32-bit ASNs allocated by the RIRs: 37239 Number of 32-bit ASNs visible in the Routing Table: 455 Prefixes from 32-bit ASNs in the Routing Table: 1346 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: 176256224 Equivalent to 10 /8s, 129 /16s and 116 /24s Percentage of available address space announced: 4.8 Percentage of allocated address space announced: 4.8 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: 1533 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3850 Total APNIC prefixes after maximum aggregation: 2011 APNIC Deaggregation factor: 1.91 Prefixes being announced from the APNIC address blocks: 3852 Unique aggregates announced from the APNIC address blocks: 2204 APNIC Region origin ASes present in the Internet Routing Table: 441 APNIC Prefixes per ASN: 8.73 APNIC Region origin ASes announcing only one prefix: 186 APNIC Region transit ASes present in the Internet Routing Table: 45 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 12 Number of APNIC region 32-bit ASNs visible in the Routing Table: 158 Number of APNIC addresses announced to Internet: 44747360 Equivalent to 2 /8s, 170 /16s and 202 /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, 131072-147769 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: 5442 Total ARIN prefixes after maximum aggregation: 3248 ARIN Deaggregation factor: 1.68 Prefixes being announced from the ARIN address blocks: 5455 Unique aggregates announced from the ARIN address blocks: 3676 ARIN Region origin ASes present in the Internet Routing Table: 851 ARIN Prefixes per ASN: 6.41 ARIN Region origin ASes announcing only one prefix: 312 ARIN Region transit ASes present in the Internet Routing Table: 107 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: 105 Number of ARIN addresses announced to Internet: 70221376 Equivalent to 4 /8s, 47 /16s and 126 /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: 3179 Total RIPE prefixes after maximum aggregation: 2550 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3171 Unique aggregates announced from the RIPE address blocks: 2610 RIPE Region origin ASes present in the Internet Routing Table: 638 RIPE Prefixes per ASN: 4.97 RIPE Region origin ASes announcing only one prefix: 310 RIPE Region transit ASes present in the Internet Routing Table: 100 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: 121 Number of RIPE addresses announced to Internet: 56021376 Equivalent to 3 /8s, 86 /16s and 209 /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: 937 Total LACNIC prefixes after maximum aggregation: 371 LACNIC Deaggregation factor: 2.53 Prefixes being announced from the LACNIC address blocks: 935 Unique aggregates announced from the LACNIC address blocks: 472 LACNIC Region origin ASes present in the Internet Routing Table: 114 LACNIC Prefixes per ASN: 8.20 LACNIC Region origin ASes announcing only one prefix: 47 LACNIC Region transit ASes present in the Internet Routing Table: 21 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: 48 Number of LACNIC addresses announced to Internet: 2672320 Equivalent to 0 /8s, 40 /16s and 198 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-272796 + 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: 830 Total AfriNIC prefixes after maximum aggregation: 156 AfriNIC Deaggregation factor: 5.32 Prefixes being announced from the AfriNIC address blocks: 830 Unique aggregates announced from the AfriNIC address blocks: 226 AfriNIC Region origin ASes present in the Internet Routing Table: 45 AfriNIC Prefixes per ASN: 18.44 AfriNIC Region origin ASes announcing only one prefix: 20 AfriNIC Region transit ASes present in the Internet Routing Table: 10 Average AfriNIC Region AS path length visible: 4.5 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: 2593792 Equivalent to 0 /8s, 39 /16s and 148 /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 611 2156 453 SINET-AS Research Organization of Infor 7497 426 209 20 CSTNET-AS-AP Computer Network Informati 1237 188 74 135 KREONET-AS-KR KISTI, KR 58647 176 18 2 KAGAWAU-AS Kagawa University, JP 7575 175 329 121 AARNET-AS-AP Australian Academic and Re 4538 172 4192 72 ERX-CERNET-BKB China Education and Rese 55824 128 19 22 NKN-CORE-NW NKN Core Network, IN 2697 55 3 31 ERX-ERNET-AS Education and Research Net 1659 54 1434 33 ERX-TANET-ASN1 Taiwan Academic Network 9317 49 16 1 ITISNET-AS INHA UNIVERSITY, KR 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 376 226 179 151 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 2152 156 507 85 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 270 119 329 88 AS270, US 2920 111 34 6 LACOE, US 21976 86 51 18 NJEDGE-NET, US 1736 80 16 1 MU-AS, US 3477 67 71 39 NOAA-NWAVE, US 22742 66 52 33 CT-EDU-NET, 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 680 275 1998 237 DFN Verein zur Foerderung eines Deutsch 786 186 1763 184 JANET Jisc Services Limited, GB 8895 173 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 95 1520 84 SURFNET-NL SURFnet, The Netherlands, NL 137 82 677 77 ASGARR Consortium GARR, IT 2200 66 647 61 FR-RENATER Reseau National de telecommu 2614 61 32 58 ROEDUNET, RO 1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol 1653 53 167 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 187 154 35 Associacao Rede Nacional de Ensino e Pe 11340 94 24 54 Red Universitaria Nacional, CL 1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 49 53 31 Fundacao Carlos Chagas Filho de Amparo 19611 44 17 2 Associacao Antonio Vieira - Unisinos, B 61468 41 3 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 28571 32 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 2018 340 319 72 TENET-1, ZA 327687 136 28 3 RENU, UG 36914 101 82 3 KENET-AS, KE 8094 55 48 4 PUKNET, ZA 327700 38 16 1 MoRENet, MZ 37215 32 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37182 12 8 1 TERNET, TZ 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, ZA 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 611 2156 453 SINET-AS Research Organization of Infor 7497 426 209 20 CSTNET-AS-AP Computer Network Informati 2018 340 319 72 TENET-1, ZA 680 275 1998 237 DFN Verein zur Foerderung eines Deutsch 376 226 179 151 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 1237 188 74 135 KREONET-AS-KR KISTI, KR 1916 187 154 35 Associacao Rede Nacional de Ensino e Pe 786 186 1763 184 JANET Jisc Services Limited, GB 58647 176 18 2 KAGAWAU-AS Kagawa University, JP 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 426 406 CSTNET-AS-AP Computer Network Information Cente 2018 340 268 TENET-1, ZA 5786 198 197 UPRENET, PR 58647 176 174 KAGAWAU-AS Kagawa University, JP 8895 173 169 ISU Internet Services Unit ISU, SA 1916 187 152 Associacao Rede Nacional de Ensino e Pesquisa, 18558 137 133 NETBLK-RCOEK, US 327687 136 133 RENU, UG 55824 128 106 NKN-CORE-NW NKN Core Network, IN 2920 111 105 LACOE, 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 14822 UNALLOCATED 140.163.6.0/24 10466 MAGPI, US 14822 UNALLOCATED 140.163.64.0/24 10466 MAGPI, US 14822 UNALLOCATED 140.163.70.0/24 10466 MAGPI, US 14822 UNALLOCATED 140.163.128.0/17 10466 MAGPI, US 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US Complete listing at https://bgp.nsrc.org/REN/ASREN/data-badAS 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 /11:1 /12:10 /13:19 /14:35 /15:103 /16:1668 /17:275 /18:305 /19:443 /20:665 /21:715 /22:1129 /23:1204 /24:7484 /25:71 /26:58 /27:55 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8895 168 173 ISU Internet Services Unit ISU, SA 36914 88 101 KENET-AS, KE 23024 53 56 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 327700 32 38 MoRENet, MZ 25977 29 32 HCCS, US 1916 27 187 Associacao Rede Nacional de Ensino e Pesquisa, 200521 27 45 SEAP-AGE, ES 37215 26 32 MAREN, MW 30220 25 25 SWTELCOOP, US Complete listing at https://bgp.nsrc.org/REN/ASREN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:15 8:2 12:1 14:84 23:2 24:2 31:1 37:6 38:3 41:148 42:9 44:4 45:32 46:6 49:10 58:4 59:10 60:4 61:3 62:6 63:5 64:11 66:23 67:34 68:1 69:17 72:12 74:14 76:17 77:6 78:3 79:10 80:17 81:28 82:2 83:7 84:3 85:31 86:9 87:1 88:1 89:10 91:46 92:1 93:18 94:2 95:4 96:5 101:3 102:10 103:209 104:4 106:1 108:4 109:8 110:3 111:16 112:4 114:18 116:5 117:2 118:17 119:18 121:27 122:8 124:39 128:65 129:31 130:84 131:79 132:52 133:138 134:87 136:189 137:106 138:9 139:4 140:34 141:2 142:21 143:32 144:27 146:122 147:26 148:7 149:13 150:19 151:6 152:62 153:6 154:24 155:36 156:65 157:20 158:42 159:116 160:25 161:15 162:11 163:58 164:35 165:53 166:1 167:16 168:80 169:9 170:3 172:1 173:1 175:20 176:8 177:8 178:1 179:9 180:21 182:5 184:3 185:35 186:2 187:18 188:12 189:3 190:25 191:6 192:1166 193:185 194:111 195:58 196:179 197:5 198:328 199:179 200:192 201:38 202:361 203:283 204:303 205:145 206:139 207:132 208:44 209:94 210:177 211:2 212:170 213:4 216:44 217:15 218:5 219:13 220:9 222:5 223:2 End of report