Global R&E Routing Table Report 17:05 GMT Sat 18 Sep, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/ Analysis Summary ---------------- BGP routing table entries examined: 14404 Prefixes after maximum aggregation (per Origin AS): 8404 Deaggregation factor: 1.71 Unique aggregates announced (without unneeded subnets): 9247 Total ASes present in the Internet Routing Table: 2147 Prefixes per ASN: 6.71 Origin-only ASes present in the Internet Routing Table: 1858 Origin ASes announcing only one prefix: 882 Transit ASes present in the Internet Routing Table: 289 Transit-only ASes present in the Internet Routing Table: 30 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: 37255 Number of 32-bit ASNs visible in the Routing Table: 466 Prefixes from 32-bit ASNs in the Routing Table: 1374 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: 176453088 Equivalent to 10 /8s, 132 /16s and 117 /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: 1553 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3851 Total APNIC prefixes after maximum aggregation: 2012 APNIC Deaggregation factor: 1.91 Prefixes being announced from the APNIC address blocks: 3853 Unique aggregates announced from the APNIC address blocks: 2207 APNIC Region origin ASes present in the Internet Routing Table: 442 APNIC Prefixes per ASN: 8.72 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: 159 Number of APNIC addresses announced to Internet: 44747872 Equivalent to 2 /8s, 170 /16s and 204 /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: 5446 Total ARIN prefixes after maximum aggregation: 3247 ARIN Deaggregation factor: 1.68 Prefixes being announced from the ARIN address blocks: 5459 Unique aggregates announced from the ARIN address blocks: 3675 ARIN Region origin ASes present in the Internet Routing Table: 852 ARIN Prefixes per ASN: 6.41 ARIN Region origin ASes announcing only one prefix: 313 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: 107 Number of ARIN addresses announced to Internet: 70222912 Equivalent to 4 /8s, 47 /16s and 132 /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: 3178 Total RIPE prefixes after maximum aggregation: 2549 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3170 Unique aggregates announced from the RIPE address blocks: 2610 RIPE Region origin ASes present in the Internet Routing Table: 637 RIPE Prefixes per ASN: 4.98 RIPE Region origin ASes announcing only one prefix: 309 RIPE Region transit ASes present in the Internet Routing Table: 99 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: 1096 Total LACNIC prefixes after maximum aggregation: 438 LACNIC Deaggregation factor: 2.50 Prefixes being announced from the LACNIC address blocks: 1094 Unique aggregates announced from the LACNIC address blocks: 532 LACNIC Region origin ASes present in the Internet Routing Table: 141 LACNIC Prefixes per ASN: 7.76 LACNIC Region origin ASes announcing only one prefix: 55 LACNIC Region transit ASes present in the Internet Routing Table: 22 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 56 Number of LACNIC addresses announced to Internet: 2917312 Equivalent to 0 /8s, 44 /16s and 131 /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: 828 Total AfriNIC prefixes after maximum aggregation: 153 AfriNIC Deaggregation factor: 5.41 Prefixes being announced from the AfriNIC address blocks: 828 Unique aggregates announced from the AfriNIC address blocks: 223 AfriNIC Region origin ASes present in the Internet Routing Table: 43 AfriNIC Prefixes per ASN: 19.26 AfriNIC Region origin ASes announcing only one prefix: 19 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: 2543616 Equivalent to 0 /8s, 38 /16s and 208 /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 174 329 121 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 201 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 66 71 38 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 190 154 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 4270 43 16 1 Red de Interconexion Universitaria, AR 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 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 102 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 201 16 1 UPRENET, PR 1916 190 154 35 Associacao Rede Nacional de Ensino e Pe 1237 188 74 135 KREONET-AS-KR KISTI, KR 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 201 200 UPRENET, PR 58647 176 174 KAGAWAU-AS Kagawa University, JP 8895 173 169 ISU Internet Services Unit ISU, SA 1916 190 155 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 /16:1671 /17:272 /18:304 /19:444 /20:670 /21:734 /22:1147 /23:1212 /24:7595 /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 89 102 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 27 190 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 41:149 42:9 44:4 45:33 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 96:5 101:3 102:10 103:211 104:4 106:1 108:4 109:8 110:3 111:16 112:4 114:18 116:5 117:2 118:17 119:18 121:27 122:8 124:39 128:65 129:31 130:82 131:79 132:52 133:138 134:87 136:192 137:107 138:8 139:4 140:34 141:2 142:21 143:32 144:27 146:122 147:26 148:7 149:13 150:19 151:6 152:62 153:6 154:24 155:36 156:65 157:20 158:42 159:116 160:25 161:15 162:11 163:58 164:35 165:53 166:1 167:16 168:100 169:9 170:40 172:1 173:1 175:20 176:8 177:8 178:1 179:9 180:21 182:5 184:2 185:35 186:2 187:18 188:12 189:3 190:41 191:6 192:1168 193:185 194:111 195:58 196:178 197:5 198:328 199:179 200:223 201:38 202:363 203:283 204:303 205:145 206:139 207:132 208:44 209:94 210:177 211:2 212:170 213:4 216:44 217:15 218:5 219:13 220:9 222:5 223:2 End of report