Global R&E Routing Table Report 22:05 GMT Thu 28 Oct, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CENIC/ Analysis Summary ---------------- BGP routing table entries examined: 22312 Prefixes after maximum aggregation (per Origin AS): 12262 Deaggregation factor: 1.82 Unique aggregates announced (without unneeded subnets): 14614 Total ASes present in the Internet Routing Table: 2793 Prefixes per ASN: 7.99 Origin-only ASes present in the Internet Routing Table: 2402 Origin ASes announcing only one prefix: 1110 Transit ASes present in the Internet Routing Table: 391 Transit-only ASes present in the Internet Routing Table: 57 Average AS path length visible in the Internet Routing Table: 4.0 Max AS path length visible: 15 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 18 Number of instances of unregistered ASNs: 18 Number of 32-bit ASNs allocated by the RIRs: 37674 Number of 32-bit ASNs visible in the Routing Table: 622 Prefixes from 32-bit ASNs in the Routing Table: 1810 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: 7 Number of addresses announced to Internet: 289589760 Equivalent to 17 /8s, 66 /16s and 202 /24s Percentage of available address space announced: 7.8 Percentage of allocated address space announced: 7.8 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: 2844 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4683 Total APNIC prefixes after maximum aggregation: 2327 APNIC Deaggregation factor: 2.01 Prefixes being announced from the APNIC address blocks: 4748 Unique aggregates announced from the APNIC address blocks: 2729 APNIC Region origin ASes present in the Internet Routing Table: 584 APNIC Prefixes per ASN: 8.13 APNIC Region origin ASes announcing only one prefix: 249 APNIC Region transit ASes present in the Internet Routing Table: 66 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: 225 Number of APNIC addresses announced to Internet: 46781440 Equivalent to 2 /8s, 201 /16s and 212 /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: 11809 Total ARIN prefixes after maximum aggregation: 6383 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 11672 Unique aggregates announced from the ARIN address blocks: 7844 ARIN Region origin ASes present in the Internet Routing Table: 1243 ARIN Prefixes per ASN: 9.39 ARIN Region origin ASes announcing only one prefix: 441 ARIN Region transit ASes present in the Internet Routing Table: 163 Average ARIN Region AS path length visible: 3.6 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 157 Number of ARIN addresses announced to Internet: 175543808 Equivalent to 10 /8s, 118 /16s and 150 /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: 3373 Total RIPE prefixes after maximum aggregation: 2739 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3451 Unique aggregates announced from the RIPE address blocks: 2871 RIPE Region origin ASes present in the Internet Routing Table: 669 RIPE Prefixes per ASN: 5.16 RIPE Region origin ASes announcing only one prefix: 323 RIPE Region transit ASes present in the Internet Routing Table: 105 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 131 Number of RIPE addresses announced to Internet: 59780608 Equivalent to 3 /8s, 144 /16s and 46 /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: 1508 Total LACNIC prefixes after maximum aggregation: 619 LACNIC Deaggregation factor: 2.44 Prefixes being announced from the LACNIC address blocks: 1511 Unique aggregates announced from the LACNIC address blocks: 865 LACNIC Region origin ASes present in the Internet Routing Table: 184 LACNIC Prefixes per ASN: 8.21 LACNIC Region origin ASes announcing only one prefix: 74 LACNIC Region transit ASes present in the Internet Routing Table: 26 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 83 Number of LACNIC addresses announced to Internet: 4594432 Equivalent to 0 /8s, 70 /16s and 27 /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: 921 Total AfriNIC prefixes after maximum aggregation: 189 AfriNIC Deaggregation factor: 4.87 Prefixes being announced from the AfriNIC address blocks: 923 Unique aggregates announced from the AfriNIC address blocks: 298 AfriNIC Region origin ASes present in the Internet Routing Table: 52 AfriNIC Prefixes per ASN: 17.75 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 13 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 11 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26 Number of AfriNIC addresses announced to Internet: 2887680 Equivalent to 0 /8s, 44 /16s and 16 /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 610 2157 457 SINET-AS Research Organization of Infor 7497 429 182 24 CSTNET-AS-AP Computer Network Informati 1237 185 74 135 KREONET-AS-KR KISTI, KR 7575 175 329 121 AARNET-AS-AP Australian Academic and Re 58647 164 18 2 KAGAWAU-AS Kagawa University, JP 55824 128 19 22 NKN-CORE-NW NKN Core Network, IN 4538 126 4192 72 ERX-CERNET-BKB China Education and Rese 4621 81 37 10 UNINET-AS-AP UNINET-, TH 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 2482 4278 860 AMAZON-02, US 14618 538 3985 409 AMAZON-AES, US 7896 250 51 7 NU-AS, US 376 233 180 157 RISQ-AS, CA 668 210 702 181 DNIC-AS-00668, US 8075 206 11189 185 MICROSOFT-CORP-MSN-AS-BLOCK, US 5786 200 16 1 UPRENET, PR 2152 159 507 88 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 270 119 329 88 AS270, US Complete listing at https://bgp.nsrc.org/REN/CENIC/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 786 186 1774 183 JANET Jisc Services Limited, GB 8895 143 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 98 1520 85 SURFNET-NL SURFnet, The Netherlands, NL 137 82 677 77 ASGARR Consortium GARR, IT 553 72 449 72 BELWUE BelWue-Koordination, DE 2200 67 647 61 FR-RENATER Reseau National de telecommu 2614 59 33 57 ROEDUNET, RO 1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 177 207 41 Associacao Rede Nacional de Ensino e Pe 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 94 24 54 Red Universitaria Nacional, CL 1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 60 102 40 Fundacao Carlos Chagas Filho de Amparo 52286 53 4 31 Columbus Networks Guatemala, GT 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 Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 344 319 73 TENET-1, ZA 327687 133 28 3 RENU, UG 36914 99 82 3 KENET-AS, KE 2561 73 5 32 EUN, EG 8094 50 48 4 PUKNET, ZA 327700 42 16 1 MoRENet, MZ 37215 33 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37182 14 8 1 TERNET, TZ 37074 11 8 2 UG-AS, GH Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 2482 4278 860 AMAZON-02, US 2907 610 2157 457 SINET-AS Research Organization of Infor 14618 538 3985 409 AMAZON-AES, US 7497 429 182 24 CSTNET-AS-AP Computer Network Informati 2018 344 319 73 TENET-1, ZA 680 276 1998 238 DFN Verein zur Foerderung eines Deutsch 7896 250 51 7 NU-AS, US 376 233 180 157 RISQ-AS, CA 668 210 702 181 DNIC-AS-00668, US 8075 206 11189 185 MICROSOFT-CORP-MSN-AS-BLOCK, US Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 429 405 CSTNET-AS-AP Computer Network Information Cente 2018 344 271 TENET-1, ZA 7896 250 243 NU-AS, US 5786 200 199 UPRENET, PR 58647 164 162 KAGAWAU-AS Kagawa University, JP 2907 610 153 SINET-AS Research Organization of Information a 8895 143 139 ISU Internet Services Unit ISU, SA 1916 177 136 Associacao Rede Nacional de Ensino e Pesquisa, 18558 137 133 NETBLK-RCOEK, US 327687 133 130 RENU, UG Complete listing at https://bgp.nsrc.org/REN/CENIC/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 14822 UNALLOCATED 140.163.0.0/16 10466 MAGPI, US 14822 UNALLOCATED 140.163.0.0/17 10466 MAGPI, US 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 394784 UNALLOCATED 192.107.242.0/24 40831 PHS, US 396334 UNALLOCATED 205.143.136.0/21 5078 ONENET-AS-1, US 396334 UNALLOCATED 205.143.136.0/24 5078 ONENET-AS-1, US Complete listing at https://bgp.nsrc.org/REN/CENIC/data-badAS Prefixes from private and non-routed address space (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/CENIC/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 103.151.24.0/24 Origin: 16509 AMAZON-02, US 103.151.24.0/24 Transit: 2152 CSUNET-NW, US 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: 11537 INTERNET2-RESEARCH-EDU, US 192.107.242.0/24 Origin: 394784 UNASSIGNED 192.107.242.0/24 Transit: 40831 PHS, US 198.135.168.0/24 Origin: 14618 AMAZON-AES, US 198.135.168.0/24 Transit: 16509 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/CENIC/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 /10:4 /11:7 /12:29 /13:34 /14:81 /15:199 /16:2152 /17:449 /18:466 /19:611 /20:994 /21:999 /22:1582 /23:1710 /24:12994 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 661 2482 AMAZON-02, US 14618 178 538 AMAZON-AES, US 8895 138 143 ISU Internet Services Unit ISU, SA 36914 85 99 KENET-AS, KE 23024 53 114 OCDE, US 327700 36 42 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 25977 31 45 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 18632 29 55 VOLCANO-VISION, US Complete listing at https://bgp.nsrc.org/REN/CENIC/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:5 3:76 4:2 5:16 6:4 8:2 12:1 13:208 14:84 15:31 18:41 23:34 24:6 31:6 35:1 37:6 38:9 40:3 41:150 42:8 44:5 45:78 46:9 47:1 49:10 50:8 52:635 54:170 58:2 59:20 60:4 61:3 62:7 63:42 64:124 65:9 66:69 67:61 68:18 69:47 70:7 71:9 72:22 74:40 75:128 76:164 77:8 78:3 79:10 80:17 81:27 82:6 83:7 84:4 85:37 86:9 87:1 88:1 89:12 91:55 92:1 93:20 94:4 95:5 96:6 97:1 98:10 99:176 101:6 102:16 103:332 104:108 106:1 107:24 108:21 109:11 110:3 111:21 112:4 113:1 114:23 116:5 117:61 118:32 119:20 121:26 122:11 123:8 124:39 125:5 128:83 129:181 130:111 131:102 132:61 133:138 134:99 135:1 136:204 137:149 138:10 139:16 140:50 141:3 142:61 143:37 144:64 146:126 147:79 148:167 149:20 150:48 151:8 152:79 153:11 154:25 155:59 156:69 157:29 158:45 159:120 160:32 161:21 162:54 163:72 164:52 165:60 166:1 167:23 168:200 169:10 170:114 171:1 172:10 173:20 174:1 175:31 176:12 177:10 178:3 179:13 180:21 181:12 182:6 184:2 185:57 186:3 187:18 188:14 189:3 190:54 191:36 192:1502 193:258 194:123 195:87 196:182 197:5 198:544 199:313 200:254 201:39 202:645 203:427 204:388 205:199 206:210 207:193 208:94 209:140 210:183 211:14 212:172 213:13 214:7 216:127 217:14 218:25 219:8 220:17 222:5 223:2 End of report