IPv4 R&E Routing Table Report 22:10 GMT Fri 20 Oct, 2023 IPv4 BGP Table (R&E) as seen at CEDIA. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CEDIA/ Analysis Summary ---------------- BGP routing table entries examined: 25282 Prefixes after maximum aggregation (per Origin AS): 12545 Deaggregation factor: 2.02 Unique aggregates announced (without unneeded subnets): 14138 Number of IPv4 prefixes with a valid ROA: 11628 Number of IPv4 prefixes with an invalid ROA: 223 Number of IPv4 prefixes with no ROA: 13431 Total ASes present in the Internet Routing Table: 2758 Prefixes per ASN: 9.17 Origin-only ASes present in the Internet Routing Table: 2374 Origin ASes announcing only one prefix: 1051 Transit ASes present in the Internet Routing Table: 384 Transit-only ASes present in the Internet Routing Table: 70 Paths with bogon ASNs present in the IPv4 Routing Table: 1 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 16 Max AS path prepend of ASN ( 47805) 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: 42878 Number of 32-bit ASNs visible in the Routing Table: 637 Prefixes from 32-bit ASNs in the Routing Table: 4703 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: 9 Number of addresses announced to Internet: 242342408 Equivalent to 14 /8s, 113 /16s and 218 /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: 3189 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4673 Total APNIC prefixes after maximum aggregation: 2294 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4715 Unique aggregates announced from the APNIC address blocks: 2652 APNIC Region origin ASes present in the Internet Routing Table: 545 APNIC Prefixes per ASN: 8.65 APNIC Region origin ASes announcing only one prefix: 228 APNIC Region transit ASes present in the Internet Routing Table: 58 Average APNIC Region AS path length visible: 5.7 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 205 Number of APNIC addresses announced to Internet: 45614656 Equivalent to 2 /8s, 184 /16s and 6 /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: 14427 Total ARIN prefixes after maximum aggregation: 6480 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 14229 Unique aggregates announced from the ARIN address blocks: 7251 ARIN Region origin ASes present in the Internet Routing Table: 1235 ARIN Prefixes per ASN: 11.52 ARIN Region origin ASes announcing only one prefix: 435 ARIN Region transit ASes present in the Internet Routing Table: 163 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 193 Number of ARIN addresses announced to Internet: 131737025 Equivalent to 7 /8s, 218 /16s and 37 /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: 3659 Total RIPE prefixes after maximum aggregation: 2904 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3805 Unique aggregates announced from the RIPE address blocks: 3124 RIPE Region origin ASes present in the Internet Routing Table: 693 RIPE Prefixes per ASN: 5.49 RIPE Region origin ASes announcing only one prefix: 308 RIPE Region transit ASes present in the Internet Routing Table: 102 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 146 Number of RIPE addresses announced to Internet: 58081024 Equivalent to 3 /8s, 118 /16s and 63 /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: 1622 Total LACNIC prefixes after maximum aggregation: 694 LACNIC Deaggregation factor: 2.34 Prefixes being announced from the LACNIC address blocks: 1626 Unique aggregates announced from the LACNIC address blocks: 881 LACNIC Region origin ASes present in the Internet Routing Table: 164 LACNIC Prefixes per ASN: 9.91 LACNIC Region origin ASes announcing only one prefix: 55 LACNIC Region transit ASes present in the Internet Routing Table: 29 Average LACNIC Region AS path length visible: 4.6 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 68 Number of LACNIC addresses announced to Internet: 4181255 Equivalent to 0 /8s, 63 /16s and 205 /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: 898 Total AfriNIC prefixes after maximum aggregation: 170 AfriNIC Deaggregation factor: 5.28 Prefixes being announced from the AfriNIC address blocks: 898 Unique aggregates announced from the AfriNIC address blocks: 221 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 18.33 AfriNIC Region origin ASes announcing only one prefix: 25 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 4.2 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: 2660864 Equivalent to 0 /8s, 40 /16s and 154 /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 603 2162 466 SINET-AS Research Organization of Infor 7497 435 180 23 CSTNET-AS-AP Computer Network Informati 1237 196 74 142 KREONET-AS-KR KISTI, KR 7575 177 329 120 AARNET-AS-AP Australian Academic and Re 58647 177 18 2 KAGAWAU-AS Kagawa University, JP 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 127 19 17 NKN-CORE-NW NKN Core Network, IN 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/CEDIA/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2704 3598 397 GOOGLE-CLOUD-PLATFORM, US 16509 2167 1639 871 AMAZON-02, US 15169 829 1997 61 GOOGLE, US 14618 812 4020 613 AMAZON-AES, US 376 202 178 151 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 36492 157 11 35 GOOGLEWIFI, US 2152 144 507 92 CSUNET-NW, US 18558 141 18 4 NETBLK-RCOEK, US 81 127 521 30 NCREN, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 786 185 1767 182 JANET Jisc Services Limited, GB 8895 164 24 5 ISU Internet Services Unit ISU, SA 559 113 533 105 SWITCH Peering requests: peering@switch 1103 94 1502 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 74 465 74 BELWUE BelWue-Koordination, DE 1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol 2200 64 599 59 FR-RENATER Reseau National de telecommu Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 252 176 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 27947 125 0 95 Telconet S.A, EC 11340 115 25 52 Red Universitaria Nacional, CL 271640 72 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 4270 51 17 4 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 2715 43 99 33 Fundacao Carlos Chagas Filho de Amparo 28614 38 2 2 Fundacao Universidade Regional de Blume 3596 35 4 3 Universidad Autonoma Metropolitana, MX Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 383 319 71 TENET-1, ZA 327687 166 28 3 RENU, UG 36914 83 82 3 KENET-AS, KE 8094 48 48 15 PUKNET, ZA 327700 42 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 37074 14 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 37654 10 1 6 RwEdNet-AS, RW Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2704 3598 397 GOOGLE-CLOUD-PLATFORM, US 16509 2167 1639 871 AMAZON-02, US 15169 829 1997 61 GOOGLE, US 14618 812 4020 613 AMAZON-AES, US 2907 603 2162 466 SINET-AS Research Organization of Infor 7497 435 180 23 CSTNET-AS-AP Computer Network Informati 2018 383 319 71 TENET-1, ZA 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 1916 252 176 43 Rede Nacional de Ensino e Pesquisa, BR 376 202 178 151 RISQ-AS, CA Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 16509 2167 1296 AMAZON-02, US 15169 829 768 GOOGLE, US 7497 435 412 CSTNET-AS-AP Computer Network Information Cente 2018 383 312 TENET-1, ZA 1916 252 209 Rede Nacional de Ensino e Pesquisa, BR 14618 812 199 AMAZON-AES, US 5786 197 196 UPRENET, PR 58647 177 175 KAGAWAU-AS Kagawa University, JP 327687 166 163 RENU, UG 8895 164 159 ISU Internet Services Unit ISU, SA Complete listing at https://bgp.nsrc.org/REN/CEDIA/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 64507 DOCUMENT 170.79.91.8/29 27817 Red Nacional Academica de Te 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/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 170.39.88.0/24 Origin: 14618 AMAZON-AES, US 170.39.88.0/24 Transit: 16509 AMAZON-02, US 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 198.135.168.0/24 Origin: 14618 AMAZON-AES, US 198.135.168.0/24 Transit: 16509 AMAZON-02, US 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/CEDIA/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 /11:4 /12:19 /13:34 /14:81 /15:161 /16:2095 /17:509 /18:482 /19:724 /20:2781 /21:1029 /22:1665 /23:1730 /24:13544 /25:88 /26:68 /27:75 /28:22 /29:85 /30:40 /31:34 /32:9 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 298 2167 AMAZON-02, US 15169 275 829 GOOGLE, US 14618 261 812 AMAZON-AES, US 396982 197 2704 GOOGLE-CLOUD-PLATFORM, US 8895 159 164 ISU Internet Services Unit ISU, SA 27947 98 125 Telconet S.A, EC 32440 81 111 LONI, US 36914 75 83 KENET-AS, KE 23024 52 113 OCDE, US 1916 39 252 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 3:78 5:20 8:28 12:1 13:45 14:89 15:70 16:112 18:66 23:110 24:3 31:9 34:21 35:47 38:9 40:1 41:120 42:10 43:1 44:9 45:60 46:12 47:1 49:9 50:3 52:558 54:228 59:19 60:5 61:3 62:12 63:36 64:165 65:12 66:71 67:61 68:13 69:34 70:44 71:3 72:13 74:142 76:47 77:11 78:3 79:10 80:14 81:27 82:7 83:6 84:10 85:42 86:4 87:2 88:1 89:18 91:58 92:4 93:4 94:4 95:2 96:7 97:1 98:11 99:47 101:3 102:30 103:297 104:214 107:33 108:104 109:12 111:16 114:31 115:1 116:8 117:61 118:32 119:18 121:27 122:8 123:8 124:40 125:4 128:88 129:51 130:141 131:63 132:64 133:152 134:108 135:3 136:293 137:145 138:10 139:17 140:38 141:5 142:278 143:22 144:39 145:3 146:144 147:63 148:201 149:17 150:44 151:16 152:134 153:14 154:30 155:73 156:67 157:23 158:40 159:148 160:30 161:30 162:85 163:85 164:23 165:51 166:1 167:23 168:160 169:12 170:133 171:1 172:114 173:116 174:2 175:18 176:11 177:6 178:1 179:9 180:15 182:1 184:3 185:103 186:3 187:18 188:19 189:3 190:5 191:13 192:1502 193:311 194:130 195:88 196:199 197:3 198:498 199:298 200:324 201:36 202:632 203:430 204:372 205:148 206:208 207:177 208:133 209:163 210:192 211:14 212:165 213:15 216:167 217:10 218:22 219:5 220:16 222:2 223:14 End of report