Global R&E Routing Table Report 17:05 GMT Thu 30 Sep, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/ Analysis Summary ---------------- BGP routing table entries examined: 14064 Prefixes after maximum aggregation (per Origin AS): 8157 Deaggregation factor: 1.72 Unique aggregates announced (without unneeded subnets): 8948 Total ASes present in the Internet Routing Table: 2129 Prefixes per ASN: 6.61 Origin-only ASes present in the Internet Routing Table: 1835 Origin ASes announcing only one prefix: 882 Transit ASes present in the Internet Routing Table: 294 Transit-only ASes present in the Internet Routing Table: 34 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 14 Max AS path prepend of ASN ( 5474) 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: 37366 Number of 32-bit ASNs visible in the Routing Table: 465 Prefixes from 32-bit ASNs in the Routing Table: 1365 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: 172753120 Equivalent to 10 /8s, 76 /16s and 0 /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: 1541 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3861 Total APNIC prefixes after maximum aggregation: 2019 APNIC Deaggregation factor: 1.91 Prefixes being announced from the APNIC address blocks: 3863 Unique aggregates announced from the APNIC address blocks: 2211 APNIC Region origin ASes present in the Internet Routing Table: 441 APNIC Prefixes per ASN: 8.76 APNIC Region origin ASes announcing only one prefix: 188 APNIC Region transit ASes present in the Internet Routing Table: 49 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: 44628832 Equivalent to 2 /8s, 168 /16s and 251 /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: 5100 Total ARIN prefixes after maximum aggregation: 3000 ARIN Deaggregation factor: 1.70 Prefixes being announced from the ARIN address blocks: 5114 Unique aggregates announced from the ARIN address blocks: 3374 ARIN Region origin ASes present in the Internet Routing Table: 828 ARIN Prefixes per ASN: 6.18 ARIN Region origin ASes announcing only one prefix: 306 ARIN Region transit ASes present in the Internet Routing Table: 108 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: 104 Number of ARIN addresses announced to Internet: 66419232 Equivalent to 3 /8s, 245 /16s and 122 /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: 3177 Total RIPE prefixes after maximum aggregation: 2538 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3168 Unique aggregates announced from the RIPE address blocks: 2605 RIPE Region origin ASes present in the Internet Routing Table: 632 RIPE Prefixes per ASN: 5.01 RIPE Region origin ASes announcing only one prefix: 306 RIPE Region transit ASes present in the Internet Routing Table: 98 Average RIPE Region AS path length visible: 3.8 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 120 Number of RIPE addresses announced to Internet: 56067008 Equivalent to 3 /8s, 87 /16s and 131 /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: 1085 Total LACNIC prefixes after maximum aggregation: 433 LACNIC Deaggregation factor: 2.51 Prefixes being announced from the LACNIC address blocks: 1083 Unique aggregates announced from the LACNIC address blocks: 526 LACNIC Region origin ASes present in the Internet Routing Table: 143 LACNIC Prefixes per ASN: 7.57 LACNIC Region origin ASes announcing only one prefix: 60 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: 57 Number of LACNIC addresses announced to Internet: 2986144 Equivalent to 0 /8s, 45 /16s and 144 /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: 836 Total AfriNIC prefixes after maximum aggregation: 162 AfriNIC Deaggregation factor: 5.16 Prefixes being announced from the AfriNIC address blocks: 836 Unique aggregates announced from the AfriNIC address blocks: 232 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 17.06 AfriNIC Region origin ASes announcing only one prefix: 22 AfriNIC Region transit ASes present in the Internet Routing Table: 11 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: 25 Number of AfriNIC addresses announced to Internet: 2651904 Equivalent to 0 /8s, 40 /16s and 119 /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 620 2156 457 SINET-AS Research Organization of Infor 7497 427 182 24 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 173 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 53 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 5786 201 16 1 UPRENET, PR 2152 156 507 85 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 2920 112 34 6 LACOE, US 376 106 8 59 RISQ-AS, CA 21976 86 51 18 NJEDGE-NET, US 1736 80 16 1 MU-AS, US 3477 72 71 42 NOAA-NWAVE, US 22742 67 52 33 CT-EDU-NET, US 15296 64 5 54 CYBERA, 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 680 276 1998 238 DFN Verein zur Foerderung eines Deutsch 786 187 1775 184 JANET Jisc Services Limited, GB 8895 177 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 67 647 61 FR-RENATER Reseau National de telecommu 2614 61 32 59 ROEDUNET, RO 1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol 1653 52 167 49 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 185 153 32 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 42 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 337 319 71 TENET-1, ZA 327687 138 28 3 RENU, UG 36914 98 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 620 2156 457 SINET-AS Research Organization of Infor 7497 427 182 24 CSTNET-AS-AP Computer Network Informati 2018 337 319 71 TENET-1, ZA 680 276 1998 238 DFN Verein zur Foerderung eines Deutsch 5786 201 16 1 UPRENET, PR 1237 188 74 135 KREONET-AS-KR KISTI, KR 786 187 1775 184 JANET Jisc Services Limited, GB 1916 185 153 32 Associacao Rede Nacional de Ensino e Pe 8895 177 24 4 ISU Internet Services Unit ISU, SA 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 427 403 CSTNET-AS-AP Computer Network Information Cente 2018 337 266 TENET-1, ZA 5786 201 200 UPRENET, PR 58647 176 174 KAGAWAU-AS Kagawa University, JP 8895 177 173 ISU Internet Services Unit ISU, SA 1916 185 153 Associacao Rede Nacional de Ensino e Pesquisa, 327687 138 135 RENU, UG 18558 137 133 NETBLK-RCOEK, US 55824 128 106 NKN-CORE-NW NKN Core Network, IN 2920 112 106 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 /14:33 /15:102 /16:1628 /17:265 /18:295 /19:439 /20:665 /21:725 /22:1124 /23:1190 /24:7377 /25:74 /26:59 /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 172 177 ISU Internet Services Unit ISU, SA 36914 85 98 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 200521 29 48 SEAP-AGE, ES 1916 27 185 Associacao Rede Nacional de Ensino e Pesquisa, 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 24:5 31:1 37:6 38:3 41:143 42:9 44:4 45:30 46:6 49:10 58:4 59:10 60:4 61:3 62:6 63:4 64:12 66:23 67:34 68:1 69:17 72:12 74:14 76:15 77:6 78:3 79:10 80:18 81:28 82:3 83:7 84:3 85:29 86:9 87:1 88:1 89:10 91:46 92:1 93:18 94:2 95:3 96:5 101:4 102:12 103:209 104:4 106:1 108:4 109:8 110:3 111:16 112:4 114:18 116:5 117:2 118:17 119:19 121:27 122:8 124:39 128:65 129:32 130:84 131:79 132:50 133:138 134:88 136:192 137:108 138:8 139:4 140:33 141:2 142:21 143:32 144:27 146:121 147:26 148:7 149:12 150:19 151:6 152:64 153:6 154:24 155:36 156:66 157:25 158:42 159:116 160:25 161:16 162:8 163:60 164:36 165:53 166:1 167:11 168:100 169:9 170:39 172:1 173:1 175:20 176:8 177:7 178:1 179:5 180:21 182:6 184:2 185:33 186:2 187:18 188:13 189:3 190:41 191:6 192:1061 193:182 194:110 195:59 196:179 197:5 198:303 199:177 200:223 201:38 202:362 203:281 204:294 205:109 206:118 207:133 208:44 209:89 210:176 211:2 212:171 213:4 216:45 217:14 218:5 219:13 220:9 222:5 223:2 End of report