Global R&E Routing Table Report 22:05 GMT Fri 18 Jun, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CENIC/ Analysis Summary ---------------- BGP routing table entries examined: 22189 Prefixes after maximum aggregation (per Origin AS): 12073 Deaggregation factor: 1.84 Unique aggregates announced (without unneeded subnets): 14295 Total ASes present in the Internet Routing Table: 2779 Prefixes per ASN: 7.98 Origin-only ASes present in the Internet Routing Table: 2378 Origin ASes announcing only one prefix: 1099 Transit ASes present in the Internet Routing Table: 401 Transit-only ASes present in the Internet Routing Table: 66 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: 16 Number of instances of unregistered ASNs: 16 Number of 32-bit ASNs allocated by the RIRs: 36364 Number of 32-bit ASNs visible in the Routing Table: 592 Prefixes from 32-bit ASNs in the Routing Table: 1709 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: 4 Number of addresses announced to Internet: 289244160 Equivalent to 17 /8s, 61 /16s and 132 /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: 3134 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4683 Total APNIC prefixes after maximum aggregation: 2344 APNIC Deaggregation factor: 2.00 Prefixes being announced from the APNIC address blocks: 4736 Unique aggregates announced from the APNIC address blocks: 2732 APNIC Region origin ASes present in the Internet Routing Table: 566 APNIC Prefixes per ASN: 8.37 APNIC Region origin ASes announcing only one prefix: 240 APNIC Region transit ASes present in the Internet Routing Table: 65 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 210 Number of APNIC addresses announced to Internet: 47130624 Equivalent to 2 /8s, 207 /16s and 40 /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: 11490 Total ARIN prefixes after maximum aggregation: 6245 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 11370 Unique aggregates announced from the ARIN address blocks: 7671 ARIN Region origin ASes present in the Internet Routing Table: 1247 ARIN Prefixes per ASN: 9.12 ARIN Region origin ASes announcing only one prefix: 444 ARIN Region transit ASes present in the Internet Routing Table: 165 Average ARIN Region AS path length visible: 3.7 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 154 Number of ARIN addresses announced to Internet: 174785792 Equivalent to 10 /8s, 107 /16s and 5 /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: 3346 Total RIPE prefixes after maximum aggregation: 2723 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3423 Unique aggregates announced from the RIPE address blocks: 2851 RIPE Region origin ASes present in the Internet Routing Table: 672 RIPE Prefixes per ASN: 5.09 RIPE Region origin ASes announcing only one prefix: 324 RIPE Region transit ASes present in the Internet Routing Table: 108 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: 128 Number of RIPE addresses announced to Internet: 59881216 Equivalent to 3 /8s, 145 /16s and 183 /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: 1554 Total LACNIC prefixes after maximum aggregation: 603 LACNIC Deaggregation factor: 2.58 Prefixes being announced from the LACNIC address blocks: 1553 Unique aggregates announced from the LACNIC address blocks: 834 LACNIC Region origin ASes present in the Internet Routing Table: 179 LACNIC Prefixes per ASN: 8.68 LACNIC Region origin ASes announcing only one prefix: 70 LACNIC Region transit ASes present in the Internet Routing Table: 29 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 76 Number of LACNIC addresses announced to Internet: 4682496 Equivalent to 0 /8s, 71 /16s and 115 /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: 1100 Total AfriNIC prefixes after maximum aggregation: 143 AfriNIC Deaggregation factor: 7.69 Prefixes being announced from the AfriNIC address blocks: 1103 Unique aggregates announced from the AfriNIC address blocks: 203 AfriNIC Region origin ASes present in the Internet Routing Table: 45 AfriNIC Prefixes per ASN: 24.51 AfriNIC Region origin ASes announcing only one prefix: 21 AfriNIC Region transit ASes present in the Internet Routing Table: 10 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 24 Number of AfriNIC addresses announced to Internet: 2759168 Equivalent to 0 /8s, 42 /16s and 26 /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 607 2155 455 SINET-AS Research Organization of Infor 7497 428 212 24 CSTNET-AS-AP Computer Network Informati 1237 189 75 137 KREONET-AS-KR KISTI, KR 7575 182 331 126 AARNET-AS-AP Australian Academic and Re 58647 164 18 2 KAGAWAU-AS Kagawa University, JP 55824 129 19 23 NKN-CORE-NW NKN Core Network, IN 4538 124 4192 72 ERX-CERNET-BKB China Education and Rese 4621 82 37 11 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 2243 4105 769 AMAZON-02, US 14618 491 3966 363 AMAZON-AES, US 7896 245 51 7 NU-AS, US 376 235 180 158 RISQ-AS, CA 668 210 702 181 DNIC-AS-00668, US 8075 205 11189 184 MICROSOFT-CORP-MSN-AS-BLOCK, US 5786 201 16 1 UPRENET, PR 2152 163 507 95 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 270 117 297 87 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 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 786 186 1787 184 JANET Jisc Services Limited, GB 8895 140 24 4 ISU Internet Services Unit (ISU), SA 559 116 550 107 SWITCH Peering requests: (peering@switc 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 66 647 61 FR-RENATER Reseau National de telecommu 2614 62 32 59 ROEDUNET, RO 1930 56 82 51 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 181 207 41 Associacao Rede Nacional de Ensino e Pe 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 27884 97 6 2 CABLECOLOR S.A., HN 11340 94 24 54 Red Universitaria Nacional, CL 1251 66 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 60 102 40 Fundacao Carlos Chagas Filho de Amparo 4270 44 16 1 Red de Interconexion Universitaria, AR 19611 44 17 2 Associacao Antonio Vieira - Unisinos, B 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 36914 411 82 3 KENET-AS, KE 2018 324 319 74 TENET-1, ZA 327687 139 28 3 RENU, UG 8094 55 48 4 PUKNET, ZA 327700 38 16 1 MoRENet, MZ 37215 29 8 1 MAREN, MW 37074 11 8 2 UG-AS, GH 37182 11 8 1 TERNET, TZ 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, ZA 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 2243 4105 769 AMAZON-02, US 2907 607 2155 455 SINET-AS Research Organization of Infor 14618 491 3966 363 AMAZON-AES, US 7497 428 212 24 CSTNET-AS-AP Computer Network Informati 36914 411 82 3 KENET-AS, KE 2018 324 319 74 TENET-1, ZA 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 7896 245 51 7 NU-AS, US 376 235 180 158 RISQ-AS, CA 668 210 702 181 DNIC-AS-00668, 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 36914 411 408 KENET-AS, KE 7497 428 404 CSTNET-AS-AP Computer Network Information Cente 2018 324 250 TENET-1, ZA 7896 245 238 NU-AS, US 5786 201 200 UPRENET, PR 58647 164 162 KAGAWAU-AS Kagawa University, JP 2907 607 152 SINET-AS Research Organization of Information a 1916 181 140 Associacao Rede Nacional de Ensino e Pesquisa, 8895 140 136 ISU Internet Services Unit (ISU), SA 327687 139 136 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 36843 UNALLOCATED 64.56.80.0/23 11096 FLORIDANET, US 19658 UNALLOCATED 65.205.131.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 108.59.20.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 108.59.23.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 131.91.183.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 131.91.252.0/22 11096 FLORIDANET, US 36843 UNALLOCATED 146.201.218.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 146.201.219.0/24 11096 FLORIDANET, US 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 36843 UNALLOCATED 162.223.23.0/24 11096 FLORIDANET, 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 164.160.240.0/20 Origin: 328439 UNASSIGNED Transit: 327992 GHANAIAN-ACADEMIC-AND-RESEARCH-NETWORK, 192.31.196.0/24 Origin: 112 UNASSIGNED Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL Transit: 11537 INTERNET2-RESEARCH-EDU, US 216.169.147.0/24 Origin: 14618 AMAZON-AES, US 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 /13:33 /14:81 /15:194 /16:2161 /17:443 /18:457 /19:630 /20:989 /21:1014 /22:1574 /23:1672 /24:12900 /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 620 2243 AMAZON-02, US 36914 383 411 KENET-AS, KE 14618 158 491 AMAZON-AES, US 8895 135 140 ISU Internet Services Unit (ISU), SA 27884 94 97 CABLECOLOR S.A., HN 23024 53 114 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 327700 32 38 MoRENet, MZ 25977 31 45 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN Complete listing at https://bgp.nsrc.org/REN/CENIC/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:4 3:76 4:2 5:15 6:4 8:2 12:1 13:212 14:84 15:16 18:41 23:23 24:6 31:6 35:1 37:6 38:9 40:3 41:237 42:25 44:5 45:70 46:10 47:1 49:10 50:8 52:595 54:109 58:2 59:20 60:4 61:4 62:7 63:38 64:123 65:11 66:67 67:58 68:18 69:42 70:7 71:9 72:19 74:39 75:128 76:166 77:7 78:3 79:10 80:14 81:32 82:5 83:7 84:4 85:36 86:9 87:1 88:1 89:11 91:56 92:1 93:12 94:4 95:4 96:6 97:1 98:8 99:173 101:2 102:9 103:303 104:104 106:1 107:24 108:21 109:8 110:3 111:21 112:4 113:1 114:23 115:1 116:5 117:63 118:35 119:18 121:29 122:11 123:8 124:40 125:9 128:86 129:180 130:114 131:105 132:56 133:137 134:92 135:1 136:204 137:160 138:15 139:16 140:50 141:3 142:61 143:41 144:64 146:126 147:74 148:167 149:16 150:47 151:7 152:77 153:11 154:25 155:53 156:64 157:29 158:48 159:118 160:33 161:20 162:49 163:71 164:48 165:21 166:1 167:19 168:163 169:9 170:109 171:1 172:10 173:24 174:1 175:32 176:11 177:7 178:3 179:13 180:21 181:11 182:6 184:13 185:52 186:3 187:18 188:14 189:6 190:142 191:35 192:1497 193:199 194:127 195:38 196:170 197:198 198:538 199:309 200:258 201:39 202:633 203:427 204:385 205:201 206:198 207:192 208:92 209:138 210:189 211:14 212:168 213:13 214:7 216:86 217:16 218:26 219:8 220:24 222:4 223:2 End of report