Global R&E Routing Table Report 22:00 GMT Fri 05 Nov, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Internet2/ Analysis Summary ---------------- BGP routing table entries examined: 21549 Prefixes after maximum aggregation (per Origin AS): 11789 Deaggregation factor: 1.83 Unique aggregates announced (without unneeded subnets): 14075 Total ASes present in the Internet Routing Table: 2668 Prefixes per ASN: 8.08 Origin-only ASes present in the Internet Routing Table: 2304 Origin ASes announcing only one prefix: 1052 Transit ASes present in the Internet Routing Table: 364 Transit-only ASes present in the Internet Routing Table: 49 Average AS path length visible in the Internet Routing Table: 3.4 Max AS path length visible: 14 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 19 Number of instances of unregistered ASNs: 19 Number of 32-bit ASNs allocated by the RIRs: 37759 Number of 32-bit ASNs visible in the Routing Table: 596 Prefixes from 32-bit ASNs in the Routing Table: 1782 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: 241697784 Equivalent to 14 /8s, 104 /16s and 3 /24s Percentage of available address space announced: 6.5 Percentage of allocated address space announced: 6.5 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: 2887 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4721 Total APNIC prefixes after maximum aggregation: 2321 APNIC Deaggregation factor: 2.03 Prefixes being announced from the APNIC address blocks: 4765 Unique aggregates announced from the APNIC address blocks: 2684 APNIC Region origin ASes present in the Internet Routing Table: 584 APNIC Prefixes per ASN: 8.16 APNIC Region origin ASes announcing only one prefix: 250 APNIC Region transit ASes present in the Internet Routing Table: 64 Average APNIC Region AS path length visible: 4.2 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: 46031424 Equivalent to 2 /8s, 190 /16s and 98 /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: 11246 Total ARIN prefixes after maximum aggregation: 6121 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 11158 Unique aggregates announced from the ARIN address blocks: 7587 ARIN Region origin ASes present in the Internet Routing Table: 1212 ARIN Prefixes per ASN: 9.21 ARIN Region origin ASes announcing only one prefix: 426 ARIN Region transit ASes present in the Internet Routing Table: 157 Average ARIN Region AS path length visible: 3.0 Max ARIN Region AS path length visible: 13 Number of ARIN region 32-bit ASNs visible in the Routing Table: 155 Number of ARIN addresses announced to Internet: 131334072 Equivalent to 7 /8s, 211 /16s and 255 /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: 3174 Total RIPE prefixes after maximum aggregation: 2564 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3224 Unique aggregates announced from the RIPE address blocks: 2708 RIPE Region origin ASes present in the Internet Routing Table: 587 RIPE Prefixes per ASN: 5.49 RIPE Region origin ASes announcing only one prefix: 284 RIPE Region transit ASes present in the Internet Routing Table: 94 Average RIPE Region AS path length visible: 3.7 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 113 Number of RIPE addresses announced to Internet: 57517024 Equivalent to 3 /8s, 109 /16s and 163 /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: 1544 Total LACNIC prefixes after maximum aggregation: 618 LACNIC Deaggregation factor: 2.50 Prefixes being announced from the LACNIC address blocks: 1550 Unique aggregates announced from the LACNIC address blocks: 863 LACNIC Region origin ASes present in the Internet Routing Table: 181 LACNIC Prefixes per ASN: 8.56 LACNIC Region origin ASes announcing only one prefix: 70 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 78 Number of LACNIC addresses announced to Internet: 4078880 Equivalent to 0 /8s, 62 /16s and 61 /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: 845 Total AfriNIC prefixes after maximum aggregation: 159 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 845 Unique aggregates announced from the AfriNIC address blocks: 226 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 16.90 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: 3.5 Max AfriNIC Region AS path length visible: 10 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2734592 Equivalent to 0 /8s, 41 /16s and 186 /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 621 2157 457 SINET-AS Research Organization of Infor 7497 430 182 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 127 4192 72 ERX-CERNET-BKB China Education and Rese 55824 113 18 10 NKN-CORE-NW NKN Core Network, IN 4621 80 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/Internet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 2690 4482 1005 AMAZON-02, US 14618 540 3985 411 AMAZON-AES, US 668 207 700 178 DNIC-AS-00668, US 376 205 179 154 RISQ-AS, CA 5786 201 16 1 UPRENET, PR 2152 156 507 85 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 1 120 1 41 LVLT-1, US 270 119 329 88 AS270, US 2920 112 34 6 LACOE, US Complete listing at https://bgp.nsrc.org/REN/Internet2/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 175 24 3 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 96 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/Internet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 198 207 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 45 17 2 Associacao Antonio Vieira - Unisinos, B 61468 45 3 15 CEDIA, EC 4270 43 16 1 Red de Interconexion Universitaria, AR 28614 38 2 2 Fundacao Universidade Regional de Blume Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 341 319 73 TENET-1, ZA 327687 138 28 3 RENU, UG 36914 100 82 3 KENET-AS, KE 8094 50 48 4 PUKNET, ZA 327700 34 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 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 2690 4482 1005 AMAZON-02, US 2907 621 2157 457 SINET-AS Research Organization of Infor 14618 540 3985 411 AMAZON-AES, US 7497 430 182 24 CSTNET-AS-AP Computer Network Informati 2018 341 319 73 TENET-1, ZA 680 276 1998 238 DFN Verein zur Foerderung eines Deutsch 668 207 700 178 DNIC-AS-00668, US 376 205 179 154 RISQ-AS, CA 5786 201 16 1 UPRENET, PR 1916 198 207 41 Associacao Rede Nacional de Ensino e Pe Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 430 406 CSTNET-AS-AP Computer Network Information Cente 2018 341 268 TENET-1, ZA 5786 201 200 UPRENET, PR 58647 176 174 KAGAWAU-AS Kagawa University, JP 8895 175 172 ISU Internet Services Unit ISU, SA 2907 621 164 SINET-AS Research Organization of Information a 1916 198 157 Associacao Rede Nacional de Ensino e Pesquisa, 327687 138 135 RENU, UG 18558 137 133 NETBLK-RCOEK, US 14618 540 129 AMAZON-AES, US Complete listing at https://bgp.nsrc.org/REN/Internet2/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 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 396334 UNALLOCATED 205.143.136.0/21 5078 ONENET-AS-1, US Complete listing at https://bgp.nsrc.org/REN/Internet2/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/Internet2/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: 11537 INTERNET2-RESEARCH-EDU, 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: 20965 GEANT The GEANT IP Service, NL 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/Internet2/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 /11:3 /12:17 /13:25 /14:60 /15:172 /16:2086 /17:444 /18:455 /19:580 /20:940 /21:953 /22:1521 /23:1635 /24:12336 /25:78 /26:68 /27:123 /28:1 /29:49 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 705 2690 AMAZON-02, US 14618 178 540 AMAZON-AES, US 8895 170 175 ISU Internet Services Unit ISU, SA 36914 86 100 KENET-AS, KE 23024 53 56 OCDE, US 1 35 120 LVLT-1, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 25977 31 45 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 327700 30 34 MoRENet, MZ Complete listing at https://bgp.nsrc.org/REN/Internet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:5 3:79 4:2 5:16 6:4 8:2 12:1 13:165 14:84 15:33 16:2 18:44 23:33 24:6 31:6 37:6 38:9 41:145 42:8 44:5 45:73 46:8 47:1 49:10 50:5 52:668 54:179 58:1 59:20 60:4 61:3 62:5 63:38 64:125 65:5 66:54 67:60 68:18 69:47 70:9 71:17 72:16 74:40 75:128 76:164 77:8 78:3 79:10 80:10 81:26 82:3 83:7 84:9 85:23 87:1 88:1 89:12 91:51 93:19 94:4 95:4 96:6 97:1 98:11 99:181 101:6 102:15 103:335 104:47 106:1 107:8 108:19 109:8 110:3 111:20 112:4 114:23 116:5 117:61 118:32 119:20 121:26 122:11 123:8 124:39 125:5 128:83 129:43 130:119 131:92 132:61 133:138 134:100 135:1 136:204 137:140 138:9 139:16 140:50 141:3 142:61 143:37 144:43 146:126 147:53 148:166 149:20 150:39 151:7 152:79 153:10 154:23 155:59 156:70 157:29 158:45 159:120 160:32 161:20 162:51 163:69 164:35 165:61 166:1 167:22 168:205 169:9 170:98 172:10 173:15 174:1 175:31 176:12 177:10 178:3 179:13 180:21 181:12 182:6 184:3 185:50 186:3 187:18 188:13 189:3 190:54 191:37 192:1465 193:206 194:103 195:61 196:180 197:5 198:494 199:307 200:250 201:39 202:644 203:426 204:347 205:199 206:204 207:191 208:83 209:133 210:184 211:14 212:171 213:11 214:7 216:139 217:13 218:25 219:8 220:17 222:5 223:2 End of report