Global R&E Routing Table Report 22:00 GMT Fri 25 Jun, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Internet2/ Analysis Summary ---------------- BGP routing table entries examined: 22263 Prefixes after maximum aggregation (per Origin AS): 12131 Deaggregation factor: 1.84 Unique aggregates announced (without unneeded subnets): 14347 Total ASes present in the Internet Routing Table: 2759 Prefixes per ASN: 8.07 Origin-only ASes present in the Internet Routing Table: 2360 Origin ASes announcing only one prefix: 1087 Transit ASes present in the Internet Routing Table: 399 Transit-only ASes present in the Internet Routing Table: 72 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: 16 Number of instances of unregistered ASNs: 16 Number of 32-bit ASNs allocated by the RIRs: 36430 Number of 32-bit ASNs visible in the Routing Table: 587 Prefixes from 32-bit ASNs in the Routing Table: 1706 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: 289485976 Equivalent to 17 /8s, 65 /16s and 52 /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: 3103 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4734 Total APNIC prefixes after maximum aggregation: 2351 APNIC Deaggregation factor: 2.01 Prefixes being announced from the APNIC address blocks: 4787 Unique aggregates announced from the APNIC address blocks: 2740 APNIC Region origin ASes present in the Internet Routing Table: 566 APNIC Prefixes per ASN: 8.46 APNIC Region origin ASes announcing only one prefix: 238 APNIC Region transit ASes present in the Internet Routing Table: 63 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 207 Number of APNIC addresses announced to Internet: 47073344 Equivalent to 2 /8s, 206 /16s and 72 /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: 11604 Total ARIN prefixes after maximum aggregation: 6299 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 11483 Unique aggregates announced from the ARIN address blocks: 7711 ARIN Region origin ASes present in the Internet Routing Table: 1228 ARIN Prefixes per ASN: 9.35 ARIN Region origin ASes announcing only one prefix: 438 ARIN Region transit ASes present in the Internet Routing Table: 168 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: 151 Number of ARIN addresses announced to Internet: 175109784 Equivalent to 10 /8s, 111 /16s and 246 /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: 3198 Total RIPE prefixes after maximum aggregation: 2711 RIPE Deaggregation factor: 1.18 Prefixes being announced from the RIPE address blocks: 3271 Unique aggregates announced from the RIPE address blocks: 2831 RIPE Region origin ASes present in the Internet Routing Table: 660 RIPE Prefixes per ASN: 4.96 RIPE Region origin ASes announcing only one prefix: 316 RIPE Region transit ASes present in the Internet Routing Table: 105 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: 126 Number of RIPE addresses announced to Internet: 59723904 Equivalent to 3 /8s, 143 /16s and 80 /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: 1584 Total LACNIC prefixes after maximum aggregation: 596 LACNIC Deaggregation factor: 2.66 Prefixes being announced from the LACNIC address blocks: 1588 Unique aggregates announced from the LACNIC address blocks: 826 LACNIC Region origin ASes present in the Internet Routing Table: 180 LACNIC Prefixes per ASN: 8.82 LACNIC Region origin ASes announcing only one prefix: 72 LACNIC Region transit ASes present in the Internet Routing Table: 30 Average LACNIC Region AS path length visible: 4.2 Max LACNIC Region AS path length visible: 11 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 78 Number of LACNIC addresses announced to Internet: 4773440 Equivalent to 0 /8s, 72 /16s and 214 /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: 1127 Total AfriNIC prefixes after maximum aggregation: 159 AfriNIC Deaggregation factor: 7.09 Prefixes being announced from the AfriNIC address blocks: 1130 Unique aggregates announced from the AfriNIC address blocks: 235 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 23.06 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 3.4 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2800640 Equivalent to 0 /8s, 42 /16s and 188 /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 619 2155 456 SINET-AS Research Organization of Infor 7497 433 215 29 CSTNET-AS-AP Computer Network Informati 1237 192 75 137 KREONET-AS-KR KISTI, KR 7575 181 331 127 AARNET-AS-AP Australian Academic and Re 58647 176 18 2 KAGAWAU-AS Kagawa University, JP 4538 125 4192 72 ERX-CERNET-BKB China Education and Rese 55824 114 18 11 NKN-CORE-NW NKN Core Network, IN 4621 81 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/Internet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 2406 4429 894 AMAZON-02, US 14618 492 3966 364 AMAZON-AES, US 7896 245 51 7 NU-AS, US 376 235 180 158 RISQ-AS, CA 668 209 702 180 DNIC-AS-00668, US 8075 205 11189 184 MICROSOFT-CORP-MSN-AS-BLOCK, US 5786 201 16 1 UPRENET, PR 2152 160 507 91 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 1 119 1 41 LVLT-1, 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 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 786 187 1787 185 JANET Jisc Services Limited, GB 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 1653 54 151 50 SUNET SUNET Swedish University Network, 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 202 207 41 Associacao Rede Nacional de Ensino e Pe 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 27884 96 6 2 CABLECOLOR S.A., HN 11340 89 23 52 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 61468 45 3 15 CEDIA, EC 4270 44 16 1 Red de Interconexion Universitaria, AR 19611 44 17 2 Associacao Antonio Vieira - Unisinos, B 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 36914 409 82 3 KENET-AS, KE 2018 324 319 74 TENET-1, ZA 327687 136 28 3 RENU, UG 8094 55 48 4 PUKNET, ZA 327700 38 16 1 MoRENet, MZ 37215 29 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37074 11 8 2 UG-AS, GH 37182 11 8 1 TERNET, TZ 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 2406 4429 894 AMAZON-02, US 2907 619 2155 456 SINET-AS Research Organization of Infor 14618 492 3966 364 AMAZON-AES, US 7497 433 215 29 CSTNET-AS-AP Computer Network Informati 36914 409 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 668 209 702 180 DNIC-AS-00668, US Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 409 406 KENET-AS, KE 7497 433 404 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 176 174 KAGAWAU-AS Kagawa University, JP 2907 619 163 SINET-AS Research Organization of Information a 1916 202 161 Associacao Rede Nacional de Ensino e Pesquisa, 18558 137 133 NETBLK-RCOEK, US 327687 136 133 RENU, UG 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 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/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 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/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 /10:4 /11:7 /12:29 /13:34 /14:81 /15:195 /16:2152 /17:449 /18:458 /19:624 /20:980 /21:1016 /22:1576 /23:1672 /24:12681 /25:59 /26:62 /27:112 /28:1 /29:48 /30:0 /31:22 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 664 2406 AMAZON-02, US 36914 381 409 KENET-AS, KE 14618 158 492 AMAZON-AES, US 27884 93 96 CABLECOLOR S.A., HN 23024 53 56 OCDE, US 1 34 119 LVLT-1, 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/Internet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:5 3:79 4:2 5:15 6:4 8:2 12:1 13:217 14:84 15:12 18:41 23:23 24:6 31:6 37:6 38:9 40:3 41:239 42:26 44:5 45:71 46:10 47:1 49:10 50:5 52:607 54:118 58:2 59:20 60:4 61:4 62:6 63:34 64:126 65:6 66:52 67:57 68:18 69:42 70:9 71:17 72:16 74:39 75:128 76:166 77:9 78:3 79:10 80:14 81:32 82:5 83:7 84:5 85:36 86:9 87:1 88:1 89:11 91:51 92:1 93:12 94:4 95:4 96:6 97:1 98:8 99:178 101:2 102:9 103:304 104:40 106:1 107:8 108:19 109:8 110:3 111:21 112:4 113:1 114:23 115:1 116:6 117:63 118:35 119:18 121:29 122:11 123:8 124:40 125:13 128:86 129:180 130:122 131:110 132:60 133:137 134:92 135:1 136:203 137:159 138:15 139:16 140:50 141:3 142:61 143:41 144:67 146:121 147:76 148:167 149:16 150:46 151:6 152:76 153:11 154:25 155:53 156:64 157:30 158:47 159:118 160:33 161:19 162:45 163:72 164:31 165:22 166:1 167:20 168:167 169:9 170:93 171:1 172:10 173:19 174:1 175:32 176:11 177:8 178:3 179:14 180:21 181:11 182:6 184:12 185:49 186:3 187:18 188:14 189:6 190:141 191:36 192:1485 193:205 194:129 195:60 196:168 197:194 198:507 199:310 200:256 201:39 202:642 203:432 204:383 205:201 206:197 207:191 208:87 209:132 210:188 211:14 212:39 213:13 214:7 216:107 217:16 218:26 219:8 220:24 222:4 223:2 End of report