IPv4 R&E Routing Table Report 22:10 GMT Wed 22 Mar, 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: 25048 Prefixes after maximum aggregation (per Origin AS): 12401 Deaggregation factor: 2.02 Unique aggregates announced (without unneeded subnets): 14077 Number of IPv4 prefixes with a valid ROA: 10773 Number of IPv4 prefixes with an invalid ROA: 183 Number of IPv4 prefixes with no ROA: 14092 Total ASes present in the Internet Routing Table: 2776 Prefixes per ASN: 9.02 Origin-only ASes present in the Internet Routing Table: 2390 Origin ASes announcing only one prefix: 1059 Transit ASes present in the Internet Routing Table: 386 Transit-only ASes present in the Internet Routing Table: 68 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: 20 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: 41495 Number of 32-bit ASNs visible in the Routing Table: 651 Prefixes from 32-bit ASNs in the Routing Table: 4469 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: 4 Number of addresses announced to Internet: 243153746 Equivalent to 14 /8s, 126 /16s and 59 /24s Percentage of available address space announced: 6.6 Percentage of allocated address space announced: 6.6 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: 3335 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4720 Total APNIC prefixes after maximum aggregation: 2315 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4765 Unique aggregates announced from the APNIC address blocks: 2683 APNIC Region origin ASes present in the Internet Routing Table: 580 APNIC Prefixes per ASN: 8.22 APNIC Region origin ASes announcing only one prefix: 251 APNIC Region transit ASes present in the Internet Routing Table: 61 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: 227 Number of APNIC addresses announced to Internet: 45836864 Equivalent to 2 /8s, 187 /16s and 106 /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: 14096 Total ARIN prefixes after maximum aggregation: 6320 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 13905 Unique aggregates announced from the ARIN address blocks: 7121 ARIN Region origin ASes present in the Internet Routing Table: 1227 ARIN Prefixes per ASN: 11.33 ARIN Region origin ASes announcing only one prefix: 425 ARIN Region transit ASes present in the Internet Routing Table: 165 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 189 Number of ARIN addresses announced to Internet: 132623553 Equivalent to 7 /8s, 231 /16s and 172 /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: 3627 Total RIPE prefixes after maximum aggregation: 2879 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3772 Unique aggregates announced from the RIPE address blocks: 3092 RIPE Region origin ASes present in the Internet Routing Table: 688 RIPE Prefixes per ASN: 5.48 RIPE Region origin ASes announcing only one prefix: 307 RIPE Region transit ASes present in the Internet Routing Table: 101 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: 144 Number of RIPE addresses announced to Internet: 58010368 Equivalent to 3 /8s, 117 /16s and 43 /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: 1586 Total LACNIC prefixes after maximum aggregation: 676 LACNIC Deaggregation factor: 2.35 Prefixes being announced from the LACNIC address blocks: 1589 Unique aggregates announced from the LACNIC address blocks: 886 LACNIC Region origin ASes present in the Internet Routing Table: 157 LACNIC Prefixes per ASN: 10.12 LACNIC Region origin ASes announcing only one prefix: 52 LACNIC Region transit ASes present in the Internet Routing Table: 26 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 63 Number of LACNIC addresses announced to Internet: 4028241 Equivalent to 0 /8s, 61 /16s and 119 /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: 1014 Total AfriNIC prefixes after maximum aggregation: 206 AfriNIC Deaggregation factor: 4.92 Prefixes being announced from the AfriNIC address blocks: 1013 Unique aggregates announced from the AfriNIC address blocks: 291 AfriNIC Region origin ASes present in the Internet Routing Table: 52 AfriNIC Prefixes per ASN: 19.48 AfriNIC Region origin ASes announcing only one prefix: 24 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 28 Number of AfriNIC addresses announced to Internet: 2653440 Equivalent to 0 /8s, 40 /16s and 125 /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 605 2157 464 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 1237 192 74 139 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 173 329 119 AARNET-AS-AP Australian Academic and Re 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 118 18 11 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 65 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 2622 3588 355 GOOGLE-CLOUD-PLATFORM, US 16509 1958 1634 780 AMAZON-02, US 15169 797 2254 63 GOOGLE, US 14618 757 3994 559 AMAZON-AES, US 5786 199 16 1 UPRENET, PR 376 198 178 148 RISQ-AS, CA 2152 153 507 92 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 81 129 521 32 NCREN, US 270 120 329 85 AS270, 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 1919 249 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 177 24 5 ISU Internet Services Unit ISU, SA 559 113 533 105 SWITCH Peering requests: peering@switch 1103 95 1518 84 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 73 449 73 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 258 208 44 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 27947 115 0 87 Telconet S.A, EC 11340 114 25 50 Red Universitaria Nacional, CL 1251 59 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 4270 44 16 1 Red de Interconexion Universitaria, AR 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/CEDIA/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 373 319 72 TENET-1, ZA 36914 237 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 327687 60 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 3208 32 2 1 ARN, DZ 37182 31 8 1 TERNET, TZ 327700 31 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 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 2622 3588 355 GOOGLE-CLOUD-PLATFORM, US 16509 1958 1634 780 AMAZON-02, US 15169 797 2254 63 GOOGLE, US 14618 757 3994 559 AMAZON-AES, US 2907 605 2157 464 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 2018 373 319 72 TENET-1, ZA 680 283 1919 249 DFN Verein zur Foerderung eines Deutsch 1916 258 208 44 Rede Nacional de Ensino e Pesquisa, BR 36914 237 82 3 KENET-AS, KE 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 1958 1178 AMAZON-02, US 15169 797 734 GOOGLE, US 7497 435 411 CSTNET-AS-AP Computer Network Information Cente 2018 373 301 TENET-1, ZA 36914 237 234 KENET-AS, KE 1916 258 214 Rede Nacional de Ensino e Pesquisa, BR 14618 757 198 AMAZON-AES, US 5786 199 198 UPRENET, PR 58647 178 176 KAGAWAU-AS Kagawa University, JP 8895 177 172 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 18621 UNALLOCATED 142.156.0.0/16 26677 ORION-ASN, CA 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, 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 102.36.194.0/23 Origin: 2018 TENET-1, ZA 102.36.194.0/23 Transit: 27750 Cooperacion Latino Americana de Redes Av 192.31.196.0/24 Origin: 112 UNASSIGNED 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 216.169.147.0/24 Origin: 14618 AMAZON-AES, US 216.169.147.0/24 Transit: 16509 AMAZON-02, US 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 /12:20 /13:34 /14:81 /15:160 /16:2091 /17:486 /18:476 /19:714 /20:2782 /21:1014 /22:1630 /23:1704 /24:13398 /25:95 /26:71 /27:99 /28:27 /29:79 /30:39 /31:30 /32:11 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 283 1958 AMAZON-02, US 15169 272 797 GOOGLE, US 14618 247 757 AMAZON-AES, US 36914 224 237 KENET-AS, KE 396982 181 2622 GOOGLE-CLOUD-PLATFORM, US 8895 172 177 ISU Internet Services Unit ISU, SA 27947 92 115 Telconet S.A, EC 32440 80 107 LONI, US 23024 51 112 OCDE, US 1916 38 258 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 3:66 5:17 8:28 12:1 13:44 14:89 15:66 16:29 18:48 23:116 24:3 31:10 34:10 35:48 37:1 38:9 40:1 41:128 42:10 44:7 45:48 46:11 47:1 49:6 50:1 52:555 54:229 58:1 59:20 60:4 61:3 62:12 63:36 64:162 65:13 66:65 67:60 68:10 69:34 70:43 71:2 72:13 74:146 76:47 77:11 78:3 79:10 80:17 81:28 82:7 83:6 84:10 85:47 86:5 87:2 88:1 89:17 91:55 92:3 93:4 94:4 95:2 96:7 97:1 98:11 99:47 101:7 102:16 103:322 104:205 107:33 108:98 109:13 110:2 111:16 114:31 115:1 116:8 117:61 118:32 119:21 121:28 122:8 123:8 124:39 125:4 128:86 129:45 130:142 131:61 132:49 133:157 134:98 135:4 136:282 137:105 138:10 139:18 140:38 141:4 142:249 143:27 144:39 145:2 146:145 147:65 148:201 149:16 150:130 151:12 152:146 153:14 154:26 155:65 156:68 157:35 158:41 159:148 160:27 161:32 162:63 163:80 164:20 165:54 166:1 167:23 168:160 169:14 170:106 171:1 172:113 173:111 174:2 175:31 176:11 177:9 178:1 179:9 180:15 182:1 184:3 185:89 186:3 187:19 188:19 189:3 190:5 191:36 192:1462 193:354 194:129 195:88 196:165 197:148 198:492 199:297 200:265 201:36 202:641 203:430 204:364 205:150 206:201 207:180 208:127 209:158 210:186 211:17 212:172 213:15 216:161 217:12 218:22 219:6 220:16 222:5 223:4 End of report