IPv4 R&E Routing Table Report 18:45 GMT Thu 28 Sep, 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: 15678 Prefixes after maximum aggregation (per Origin AS): 8193 Deaggregation factor: 1.91 Unique aggregates announced (without unneeded subnets): 9403 Number of IPv4 prefixes with a valid ROA: 3670 Number of IPv4 prefixes with an invalid ROA: 25 Number of IPv4 prefixes with no ROA: 11983 Total ASes present in the Internet Routing Table: 2201 Prefixes per ASN: 7.12 Origin-only ASes present in the Internet Routing Table: 1911 Origin ASes announcing only one prefix: 802 Transit ASes present in the Internet Routing Table: 290 Transit-only ASes present in the Internet Routing Table: 57 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: 15 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 3 Number of instances of unregistered ASNs: 3 Number of 32-bit ASNs allocated by the RIRs: 42705 Number of 32-bit ASNs visible in the Routing Table: 491 Prefixes from 32-bit ASNs in the Routing Table: 1630 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: 3 Number of addresses announced to Internet: 160603648 Equivalent to 9 /8s, 146 /16s and 158 /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: 99.5 Total number of prefixes smaller than registry allocations: 1594 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4408 Total APNIC prefixes after maximum aggregation: 2144 APNIC Deaggregation factor: 2.06 Prefixes being announced from the APNIC address blocks: 4407 Unique aggregates announced from the APNIC address blocks: 2587 APNIC Region origin ASes present in the Internet Routing Table: 514 APNIC Prefixes per ASN: 8.57 APNIC Region origin ASes announcing only one prefix: 217 APNIC Region transit ASes present in the Internet Routing Table: 51 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: 196 Number of APNIC addresses announced to Internet: 45562624 Equivalent to 2 /8s, 183 /16s and 59 /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, 131072-153913 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: 7836 Total ARIN prefixes after maximum aggregation: 4671 ARIN Deaggregation factor: 1.68 Prefixes being announced from the ARIN address blocks: 7844 Unique aggregates announced from the ARIN address blocks: 5168 ARIN Region origin ASes present in the Internet Routing Table: 1224 ARIN Prefixes per ASN: 6.41 ARIN Region origin ASes announcing only one prefix: 427 ARIN Region transit ASes present in the Internet Routing Table: 156 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 189 Number of ARIN addresses announced to Internet: 95214080 Equivalent to 5 /8s, 172 /16s and 218 /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: 980 Total RIPE prefixes after maximum aggregation: 656 RIPE Deaggregation factor: 1.49 Prefixes being announced from the RIPE address blocks: 975 Unique aggregates announced from the RIPE address blocks: 669 RIPE Region origin ASes present in the Internet Routing Table: 216 RIPE Prefixes per ASN: 4.51 RIPE Region origin ASes announcing only one prefix: 90 RIPE Region transit ASes present in the Internet Routing Table: 35 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: 27 Number of RIPE addresses announced to Internet: 13191168 Equivalent to 0 /8s, 201 /16s and 72 /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 196608-216475 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: 1472 Total LACNIC prefixes after maximum aggregation: 582 LACNIC Deaggregation factor: 2.53 Prefixes being announced from the LACNIC address blocks: 1470 Unique aggregates announced from the LACNIC address blocks: 788 LACNIC Region origin ASes present in the Internet Routing Table: 167 LACNIC Prefixes per ASN: 8.80 LACNIC Region origin ASes announcing only one prefix: 62 LACNIC Region transit ASes present in the Internet Routing Table: 27 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 70 Number of LACNIC addresses announced to Internet: 4172544 Equivalent to 0 /8s, 63 /16s and 171 /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: 979 Total AfriNIC prefixes after maximum aggregation: 137 AfriNIC Deaggregation factor: 7.15 Prefixes being announced from the AfriNIC address blocks: 979 Unique aggregates announced from the AfriNIC address blocks: 188 AfriNIC Region origin ASes present in the Internet Routing Table: 21 AfriNIC Prefixes per ASN: 46.62 AfriNIC Region origin ASes announcing only one prefix: 6 AfriNIC Region transit ASes present in the Internet Routing Table: 5 Average AfriNIC Region AS path length visible: 2.7 Max AfriNIC Region AS path length visible: 5 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 9 Number of AfriNIC addresses announced to Internet: 2397184 Equivalent to 0 /8s, 36 /16s and 148 /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 594 2163 466 SINET-AS Research Organization of Infor 7497 437 180 23 CSTNET-AS-AP Computer Network Informati 1237 192 74 141 KREONET-AS-KR KISTI, KR 58647 177 18 2 KAGAWAU-AS Kagawa University, JP 7575 175 329 119 AARNET-AS-AP Australian Academic and Re 55824 126 18 17 NKN-CORE-NW NKN Core Network, IN 4538 125 4176 73 ERX-CERNET-BKB China Education and Rese 4621 70 37 10 UNINET-AS-AP UNINET-, TH 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T 4762 63 4 1 MAHIDOL-BORDER-AS Mahidol University, T 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 668 203 651 172 DNIC-AS-00668, US 376 202 178 151 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 18558 141 18 4 NETBLK-RCOEK, US 2152 140 507 92 CSUNET-NW, US 81 127 521 30 NCREN, US 270 118 329 82 AS270, US 23024 113 7 17 OCDE, US 2920 101 34 7 LACOE, US 21976 82 51 18 NJEDGE-NET, 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 136 24 5 ISU Internet Services Unit ISU, SA 1103 94 1502 83 SURFNET-NL SURFnet, The Netherlands, NL 3267 57 63 42 RUNNET, RU 1653 50 151 47 SUNET SUNET Swedish University Network, 1741 39 149 18 FUNETAS, FI 5495 24 7 8 ASN-SPBGU St.Petersburg, Russia, RU 3218 21 4 18 COSMOS-3218-AS AS-COSMOS root, RU 8674 18 2 11 NETNOD-IX Netnod AB, SE 1880 14 1 9 STUPI, SE 224 13 256 13 UNINETT UNINETT, The Norwegian Universi 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 213 176 42 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 104 24 48 Red Universitaria Nacional, CL 271640 72 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 2715 58 102 39 Fundacao Carlos Chagas Filho de Amparo 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 4270 47 16 1 Red de Interconexion Universitaria, AR 61468 43 3 14 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 3596 34 4 3 Universidad Autonoma Metropolitana, MX 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 380 319 71 TENET-1, ZA 36914 256 82 3 KENET-AS, KE 327687 167 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 44 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37501 11 49 6 UOFS, ZA 37654 10 1 6 RwEdNet-AS, RW 36982 8 33 8 UCT, ZA 37215 6 8 1 MAREN, MW 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 594 2163 466 SINET-AS Research Organization of Infor 7497 437 180 23 CSTNET-AS-AP Computer Network Informati 2018 380 319 71 TENET-1, ZA 36914 256 82 3 KENET-AS, KE 1916 213 176 42 Rede Nacional de Ensino e Pesquisa, BR 668 203 651 172 DNIC-AS-00668, US 376 202 178 151 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 1237 192 74 141 KREONET-AS-KR KISTI, KR 58647 177 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 437 414 CSTNET-AS-AP Computer Network Information Cente 2018 380 309 TENET-1, ZA 36914 256 253 KENET-AS, KE 5786 197 196 UPRENET, PR 58647 177 175 KAGAWAU-AS Kagawa University, JP 1916 213 171 Rede Nacional de Ensino e Pesquisa, BR 327687 167 164 RENU, UG 18558 141 137 NETBLK-RCOEK, US 8895 136 131 ISU Internet Services Unit ISU, SA 55824 126 109 NKN-CORE-NW NKN Core Network, IN 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 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 134.208.0.0/16 Origin: 17711 NDHU-TW National Dong Hwa University, TW 134.208.0.0/16 Transit: 7539 TWAREN-TW National Center for High-perfo 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 202.58.231.0/24 Origin: 134096 EHEALTHNSW-AS-AP eHealth NSW, AU 202.58.231.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 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 /15:87 /16:1436 /17:360 /18:377 /19:465 /20:698 /21:659 /22:1193 /23:1268 /24:9075 /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 245 256 KENET-AS, KE 8895 131 136 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 32440 38 63 LONI, US 327700 38 44 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 25977 30 44 HCCS, US 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) ---------------------------------------------- 1:2 4:2 6:4 8:2 12:1 14:89 23:6 24:3 35:4 38:9 40:1 41:115 42:10 44:3 45:39 47:1 49:9 50:1 52:1 59:18 60:5 61:3 62:6 63:33 64:51 65:1 66:37 67:41 68:9 69:17 70:2 71:1 72:7 74:46 76:41 77:6 80:4 81:1 82:4 84:4 85:17 86:10 87:1 89:2 91:17 92:2 93:1 96:5 97:1 98:2 101:2 102:25 103:264 104:76 108:10 109:6 111:16 114:23 116:6 117:61 118:32 119:18 121:19 122:8 123:8 124:40 125:4 128:84 129:35 130:87 131:54 132:60 133:152 134:102 136:196 137:124 138:9 139:5 140:40 141:1 142:38 143:20 144:23 146:130 147:52 148:186 149:12 150:44 151:11 152:146 153:2 154:30 155:63 156:64 157:18 158:33 159:114 160:30 161:24 162:22 163:85 164:10 165:46 166:1 167:13 168:123 169:8 170:76 171:1 172:3 173:7 175:18 176:8 177:6 179:12 180:14 181:1 182:1 184:9 185:22 186:3 187:18 188:3 189:3 190:20 191:13 192:1069 193:39 194:60 195:46 196:198 197:167 198:481 199:277 200:331 201:39 202:586 203:425 204:356 205:129 206:189 207:166 208:71 209:112 210:190 211:14 212:127 213:3 214:8 216:83 217:1 218:22 219:5 220:16 222:1 223:14 End of report