IPv4 R&E Routing Table Report 18:45 GMT Sat 15 Apr, 2023 IPv4 BGP Table (R&E) as seen at TENET. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/TENET/ Analysis Summary ---------------- BGP routing table entries examined: 15444 Prefixes after maximum aggregation (per Origin AS): 8170 Deaggregation factor: 1.89 Unique aggregates announced (without unneeded subnets): 9265 Number of IPv4 prefixes with a valid ROA: 2732 Number of IPv4 prefixes with an invalid ROA: 10 Number of IPv4 prefixes with no ROA: 12702 Total ASes present in the Internet Routing Table: 2152 Prefixes per ASN: 7.18 Origin-only ASes present in the Internet Routing Table: 1861 Origin ASes announcing only one prefix: 776 Transit ASes present in the Internet Routing Table: 291 Transit-only ASes present in the Internet Routing Table: 53 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 19 Max AS path prepend of ASN (395156) 12 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: 41662 Number of 32-bit ASNs visible in the Routing Table: 429 Prefixes from 32-bit ASNs in the Routing Table: 1342 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: 2 Number of addresses announced to Internet: 160460288 Equivalent to 9 /8s, 144 /16s and 110 /24s Percentage of available address space announced: 4.3 Percentage of allocated address space announced: 4.3 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 1559 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4187 Total APNIC prefixes after maximum aggregation: 2092 APNIC Deaggregation factor: 2.00 Prefixes being announced from the APNIC address blocks: 4188 Unique aggregates announced from the APNIC address blocks: 2360 APNIC Region origin ASes present in the Internet Routing Table: 477 APNIC Prefixes per ASN: 8.78 APNIC Region origin ASes announcing only one prefix: 196 APNIC Region transit ASes present in the Internet Routing Table: 53 Average APNIC Region AS path length visible: 5.0 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 145 Number of APNIC addresses announced to Internet: 45589760 Equivalent to 2 /8s, 183 /16s and 165 /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: 7986 Total ARIN prefixes after maximum aggregation: 4721 ARIN Deaggregation factor: 1.69 Prefixes being announced from the ARIN address blocks: 8000 Unique aggregates announced from the ARIN address blocks: 5295 ARIN Region origin ASes present in the Internet Routing Table: 1232 ARIN Prefixes per ASN: 6.49 ARIN Region origin ASes announcing only one prefix: 433 ARIN Region transit ASes present in the Internet Routing Table: 160 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 19 Number of ARIN region 32-bit ASNs visible in the Routing Table: 187 Number of ARIN addresses announced to Internet: 95208448 Equivalent to 5 /8s, 172 /16s and 196 /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: 950 Total RIPE prefixes after maximum aggregation: 641 RIPE Deaggregation factor: 1.48 Prefixes being announced from the RIPE address blocks: 942 Unique aggregates announced from the RIPE address blocks: 644 RIPE Region origin ASes present in the Internet Routing Table: 208 RIPE Prefixes per ASN: 4.53 RIPE Region origin ASes announcing only one prefix: 86 RIPE Region transit ASes present in the Internet Routing Table: 33 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 25 Number of RIPE addresses announced to Internet: 13234688 Equivalent to 0 /8s, 201 /16s and 242 /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: 1484 Total LACNIC prefixes after maximum aggregation: 577 LACNIC Deaggregation factor: 2.57 Prefixes being announced from the LACNIC address blocks: 1481 Unique aggregates announced from the LACNIC address blocks: 795 LACNIC Region origin ASes present in the Internet Routing Table: 155 LACNIC Prefixes per ASN: 9.55 LACNIC Region origin ASes announcing only one prefix: 52 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 4.6 Max LACNIC Region AS path length visible: 11 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 63 Number of LACNIC addresses announced to Internet: 3990528 Equivalent to 0 /8s, 60 /16s and 228 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 832 Total AfriNIC prefixes after maximum aggregation: 134 AfriNIC Deaggregation factor: 6.21 Prefixes being announced from the AfriNIC address blocks: 831 Unique aggregates announced from the AfriNIC address blocks: 169 AfriNIC Region origin ASes present in the Internet Routing Table: 24 AfriNIC Prefixes per ASN: 34.62 AfriNIC Region origin ASes announcing only one prefix: 9 AfriNIC Region transit ASes present in the Internet Routing Table: 6 Average AfriNIC Region AS path length visible: 2.5 Max AfriNIC Region AS path length visible: 8 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 9 Number of AfriNIC addresses announced to Internet: 2436096 Equivalent to 0 /8s, 37 /16s and 44 /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 596 2155 466 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 1237 189 74 139 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 174 329 119 AARNET-AS-AP Australian Academic and Re 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 4621 69 37 10 UNINET-AS-AP UNINET-, TH 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T 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/TENET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 668 205 572 173 DNIC-AS-00668, US 376 198 178 148 RISQ-AS, CA 5786 194 16 1 UPRENET, PR 2152 151 507 92 CSUNET-NW, US 18558 139 18 4 NETBLK-RCOEK, US 81 129 521 32 NCREN, US 270 120 329 85 AS270, US 23024 112 7 17 OCDE, US 2920 107 34 7 LACOE, US 32531 90 6 60 FORDHAM-UNIVERSITY, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8895 135 24 3 ISU Internet Services Unit ISU, SA 1103 95 1518 84 SURFNET-NL SURFnet, The Netherlands, NL 3267 56 63 41 RUNNET, RU 1653 50 151 47 SUNET SUNET Swedish University Network, 1741 39 149 18 FUNETAS, FI 5495 26 7 8 ASN-SPBGU St.Petersburg, Russia, RU 3218 21 4 18 COSMOS-3218-AS AS-COSMOS root, RU 8674 17 2 11 NETNOD-IX Netnod AB, SE 224 13 256 13 UNINETT UNINETT, The Norwegian Universi 1101 13 481 13 IP-EEND-AS IP-EEND BV, NL Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 223 208 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 103 24 47 Red Universitaria Nacional, CL 1251 60 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 4270 45 16 1 Red de Interconexion Universitaria, AR 61468 42 3 14 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 379 319 72 TENET-1, ZA 36914 249 82 3 KENET-AS, KE 327687 63 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 30 16 1 MoRENet, MZ 37501 11 49 6 UOFS, ZA 37654 10 1 6 RwEdNet-AS, RW 36982 8 33 8 UCT, ZA 31960 5 1 1 EMUNET, MZ 328358 5 1 1 Makerere-AS, UG Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 596 2155 466 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 2018 379 319 72 TENET-1, ZA 36914 249 82 3 KENET-AS, KE 1916 223 208 43 Rede Nacional de Ensino e Pesquisa, BR 668 205 572 173 DNIC-AS-00668, US 376 198 178 148 RISQ-AS, CA 5786 194 16 1 UPRENET, PR 1237 189 74 139 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 434 410 CSTNET-AS-AP Computer Network Information Cente 2018 379 307 TENET-1, ZA 36914 249 246 KENET-AS, KE 5786 194 193 UPRENET, PR 1916 223 180 Rede Nacional de Ensino e Pesquisa, BR 58647 178 176 KAGAWAU-AS Kagawa University, JP 18558 139 135 NETBLK-RCOEK, US 8895 135 132 ISU Internet Services Unit ISU, SA 2920 107 100 LACOE, US 81 129 97 NCREN, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 18838 UNALLOCATED 168.8.240.0/20 3480 PEACHNET-AS3480, US 18838 UNALLOCATED 168.9.0.0/20 3480 PEACHNET-AS3480, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 102.36.194.0/23 Origin: 2018 TENET-1, ZA 102.36.194.0/23 Transit: 0 UNALLOCATED 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/TENET/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 /11:1 /12:9 /13:17 /14:30 /15:88 /16:1476 /17:354 /18:396 /19:473 /20:747 /21:687 /22:1175 /23:1249 /24:8739 /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 36914 236 249 KENET-AS, KE 8895 130 135 ISU Internet Services Unit ISU, SA 23024 51 112 OCDE, US 32440 37 59 LONI, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 25977 30 44 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 40326 29 33 ECKERD-COLLEGE, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1 4:2 6:4 8:2 12:1 23:9 24:3 35:8 38:9 40:1 41:103 42:10 44:4 45:23 47:1 49:3 50:1 52:1 58:1 59:20 60:4 61:3 62:6 63:33 64:53 65:1 66:33 67:41 68:8 69:19 70:2 71:1 72:7 74:50 76:41 77:6 80:8 81:1 82:4 84:4 85:18 86:5 87:1 89:2 91:14 92:2 93:1 96:5 97:1 98:2 101:6 102:9 103:189 104:77 108:9 109:6 110:2 114:23 116:6 117:61 118:32 119:21 121:12 122:8 123:8 124:39 125:4 128:83 129:33 130:87 131:53 132:62 133:157 134:99 136:193 137:84 138:9 139:5 140:49 141:1 142:39 143:27 144:1 146:131 147:54 148:186 149:12 150:130 151:8 152:144 153:2 154:30 155:55 156:66 157:34 158:5 159:114 160:27 161:21 162:21 163:80 164:10 165:51 166:1 167:16 168:124 169:7 170:63 171:1 172:3 173:7 175:31 176:8 177:9 179:10 180:1 181:1 182:1 184:3 185:15 186:3 187:19 188:3 189:3 190:18 191:36 192:1042 193:33 194:58 195:20 196:160 197:154 198:484 199:279 200:309 201:39 202:596 203:429 204:355 205:131 206:186 207:166 208:63 209:115 210:185 211:17 212:130 213:3 214:8 216:86 217:1 218:22 219:6 220:12 222:5 223:4 End of report