IPv4 R&E Routing Table Report 20:30 GMT Sun 11 May, 2025 IPv4 BGP Table (R&E) as seen at PREGINET. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/PREGINET/ Analysis Summary ---------------- BGP routing table entries examined: 158040 Prefixes after maximum aggregation (per Origin AS): 62452 Deaggregation factor: 2.53 Unique aggregates announced (without unneeded subnets): 89263 Number of IPv4 prefixes with a valid ROA: 86814 Number of IPv4 prefixes with an invalid ROA: 80 Number of IPv4 prefixes with no ROA: 71146 Total ASes present in the Internet Routing Table: 14489 Prefixes per ASN: 10.91 Origin-only ASes present in the Internet Routing Table: 12258 Origin ASes announcing only one prefix: 5955 Transit ASes present in the Internet Routing Table: 2231 Transit-only ASes present in the Internet Routing Table: 496 Paths with bogon ASNs present in the IPv4 Routing Table: 4 Average AS path length visible in the Internet Routing Table: 6.7 Max AS path length visible: 45 Max AS path prepend of ASN (212940) 40 Prefixes from unregistered ASNs in the Routing Table: 81 Number of instances of unregistered ASNs: 82 Number of 32-bit ASNs allocated by the RIRs: 46393 Number of 32-bit ASNs visible in the Routing Table: 7144 Prefixes from 32-bit ASNs in the Routing Table: 29064 Number of bogon 32-bit ASNs visible in the Routing Table: 8 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 61 Number of addresses announced to Internet: 504854272 Equivalent to 30 /8s, 23 /16s and 119 /24s Percentage of available address space announced: 13.6 Percentage of allocated address space announced: 13.6 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: 38625 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 77897 Total APNIC prefixes after maximum aggregation: 24782 APNIC Deaggregation factor: 3.14 Prefixes being announced from the APNIC address blocks: 76111 Unique aggregates announced from the APNIC address blocks: 36457 APNIC Region origin ASes present in the Internet Routing Table: 4935 APNIC Prefixes per ASN: 15.42 APNIC Region origin ASes announcing only one prefix: 1850 APNIC Region transit ASes present in the Internet Routing Table: 726 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3161 Number of APNIC addresses announced to Internet: 188429824 Equivalent to 11 /8s, 59 /16s and 54 /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, 131072-155961 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: 26841 Total ARIN prefixes after maximum aggregation: 14477 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 26416 Unique aggregates announced from the ARIN address blocks: 20267 ARIN Region origin ASes present in the Internet Routing Table: 2091 ARIN Prefixes per ASN: 12.63 ARIN Region origin ASes announcing only one prefix: 988 ARIN Region transit ASes present in the Internet Routing Table: 218 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 462 Number of ARIN addresses announced to Internet: 167488256 Equivalent to 9 /8s, 251 /16s and 171 /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, 393216-402332 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 39452 Total RIPE prefixes after maximum aggregation: 18328 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 40337 Unique aggregates announced from the RIPE address blocks: 25103 RIPE Region origin ASes present in the Internet Routing Table: 4613 RIPE Prefixes per ASN: 8.74 RIPE Region origin ASes announcing only one prefix: 2141 RIPE Region transit ASes present in the Internet Routing Table: 667 Average RIPE Region AS path length visible: 6.2 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1607 Number of RIPE addresses announced to Internet: 124733696 Equivalent to 7 /8s, 111 /16s and 73 /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, 53/8, 57/8, 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: 12257 Total LACNIC prefixes after maximum aggregation: 4438 LACNIC Deaggregation factor: 2.76 Prefixes being announced from the LACNIC address blocks: 11685 Unique aggregates announced from the LACNIC address blocks: 5769 LACNIC Region origin ASes present in the Internet Routing Table: 2227 LACNIC Prefixes per ASN: 5.25 LACNIC Region origin ASes announcing only one prefix: 933 LACNIC Region transit ASes present in the Internet Routing Table: 487 Average LACNIC Region AS path length visible: 7.5 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1863 Number of LACNIC addresses announced to Internet: 18289152 Equivalent to 1 /8s, 23 /16s and 18 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 1512 Total AfriNIC prefixes after maximum aggregation: 366 AfriNIC Deaggregation factor: 4.13 Prefixes being announced from the AfriNIC address blocks: 3430 Unique aggregates announced from the AfriNIC address blocks: 1638 AfriNIC Region origin ASes present in the Internet Routing Table: 103 AfriNIC Prefixes per ASN: 33.30 AfriNIC Region origin ASes announcing only one prefix: 43 AfriNIC Region transit ASes present in the Internet Routing Table: 30 Average AfriNIC Region AS path length visible: 7.1 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 51 Number of AfriNIC addresses announced to Internet: 5883648 Equivalent to 0 /8s, 89 /16s and 199 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 9808 10619 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4213 500 291 BBIL-AP BHARTI Airtel Ltd., IN 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2244 1083 461 VIETEL-AS-AP Viettel Group, VN 4766 2018 6034 954 KIXS-AS-KR Korea Telecom, KR 45609 1853 828 322 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1709 812 180 CMNET-JIANGSU-AP China Mobile communicati 56041 1575 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication 9919 970 170 64 NCIC-TW New Century InfoComm Tech Co., Lt Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 30036 2406 333 680 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2236 3097 514 CHARTER-20115, US 16509 2233 3627 1277 AMAZON-02, US 11492 1926 134 1046 CABLEONE, US 714 1235 4391 8 APPLE-ENGINEERING, US 8075 752 16020 635 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1912 301 TWC-10796-MIDWEST, US 12083 575 192 88 WOW-INTERNET, US 2152 396 44 265 CENIC-2152, US 33363 386 1422 213 BHN-33363, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 4179 255 52 ALJAWWALSTC-AS, SA 12389 2305 1997 779 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 921 639 332 SAUDINETSTC-AS, SA 49505 860 92 356 SELECTEL, RU 9123 628 39 281 TIMEWEB-AS, RU 50010 616 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 481 180 178 KAZTELECOM-AS, KZ 9155 426 37 9 QNET Kuwait, KW 21299 424 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 42772 373 63 104 A1-BY-AS, BY Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1832 672 240 UNINET, MX 7738 592 1767 64 V tal, BR 8167 342 1089 44 V tal, BR 1916 240 177 40 Rede Nacional de Ensino e Pesquisa, BR 28201 217 16 28 Companhia Itabirana Telecomunicacoes Ltda 28391 159 10 71 Universidad Juarez Autonoma de Tabasco, M 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11014 128 10 26 CPS, AR 11340 110 25 52 Red Universitaria Nacional, CL 19089 107 18 45 Scala Data Centers, BR Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 537 82 3 KENET-AS, KE 2018 373 318 69 TENET-1, ZA 30999 74 25 32 EMTEL-AS-AP, MU 15399 70 6 25 WANANCHI-, KE 23889 49 27 29 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37215 36 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 327885 20 4 3 Viettel-Tanzania, TZ 328543 20 5 5 sun-asn, SC Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 10619 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4213 500 291 BBIL-AP BHARTI Airtel Ltd., IN 39891 4179 255 52 ALJAWWALSTC-AS, SA 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2406 333 680 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2305 1997 779 ROSTELECOM-AS PJSC Rostelecom. Technical 7552 2244 1083 461 VIETEL-AS-AP Viettel Group, VN 20115 2236 3097 514 CHARTER-20115, US 16509 2233 3627 1277 AMAZON-02, US 4766 2018 6034 954 KIXS-AS-KR Korea Telecom, KR Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 39891 4179 4127 ALJAWWALSTC-AS, SA 9498 4213 3922 BBIL-AP BHARTI Airtel Ltd., IN 24560 2865 2331 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 7552 2244 1783 VIETEL-AS-AP Viettel Group, VN 30036 2406 1726 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2236 1722 CHARTER-20115, US 8151 1832 1592 UNINET, MX 45609 1853 1531 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56046 1709 1529 CMNET-JIANGSU-AP China Mobile communications co 12389 2305 1526 ROSTELECOM-AS PJSC Rostelecom. Technical Team, Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 393377 UNALLOCATED 12.195.116.0/24 40264 TWC-40264-WI-MN-UPPERMI 202528 UNALLOCATED 23.143.136.0/24 153371 BACKWAVESLIMITED-AS-AP 46123 UNALLOCATED 24.73.234.0/24 33363 BHN-33363, US 53771 UNALLOCATED 24.172.253.0/24 11426 TWC-11426-CAROLINAS, US 53657 UNALLOCATED 24.213.247.0/24 11351 TWC-11351-NORTHEAST, US 11835 UNALLOCATED 45.4.236.0/22 14868 Ligga Telecomunicacoes 268652 UNALLOCATED 45.165.20.0/22 264493 UNASSIGNED 40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, US 396324 UNALLOCATED 66.57.112.0/24 11426 TWC-11426-CAROLINAS, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 103.5.136.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP 103.5.136.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP 103.6.224.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP 103.6.224.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP 103.8.106.0/24 Origin: 135391 AOFEI-HK AOFEI DATA INTERNATIONAL COMPAN 103.8.106.0/24 Transit: 55888 NINTATSU Nintatsu Global Telecommunicati 103.12.68.0/22 Origin: 152194 CTGSERVERLIMITED-AS-AP CTG Server Limite 103.12.68.0/22 Transit: 17476 CHL-AS-AP CloudRadium HK Limited, HK 103.12.68.0/24 Origin: 152194 CTGSERVERLIMITED-AS-AP CTG Server Limite 103.12.68.0/24 Transit: 17476 CHL-AS-AP CloudRadium HK Limited, HK Complete listing at https://bgp.nsrc.org/REN/PREGINET/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 /8:1 /9:2 /10:13 /11:13 /12:47 /13:82 /14:167 /15:397 /16:2479 /17:1329 /18:2807 /19:4410 /20:7557 /21:9464 /22:17251 /23:16364 /24:95656 /25:1 /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 39891 3321 4179 ALJAWWALSTC-AS, SA 30036 2090 2406 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1401 2305 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1326 1926 CABLEONE, US 8151 1012 1832 UNINET, MX 49505 596 860 SELECTEL, RU 20115 552 2236 CHARTER-20115, US 50010 514 616 NAWRAS-AS Sultanate of Oman, OM 36914 513 537 KENET-AS, KE 9123 510 628 TIMEWEB-AS, RU Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:163 2:321 3:103 5:1092 8:64 12:81 13:89 14:382 15:58 16:63 17:321 18:74 20:28 23:712 24:593 25:2 27:625 31:527 32:2 34:3 35:37 36:1677 37:640 38:501 39:702 40:1 41:241 42:135 43:662 44:22 45:2332 46:784 47:63 49:205 50:319 51:138 52:258 54:62 57:27 58:303 59:451 60:95 61:765 62:552 63:127 64:372 65:284 66:296 67:310 68:71 69:256 70:33 71:84 72:247 74:194 75:66 76:62 77:486 78:451 79:239 80:225 81:340 82:355 83:189 84:185 85:370 86:114 87:312 88:100 89:467 90:133 91:1392 92:449 93:933 94:789 95:1470 96:266 97:146 98:68 99:47 101:448 102:117 103:7823 104:363 105:9 106:288 107:106 108:145 109:467 110:230 111:2131 112:932 113:300 114:823 115:309 116:412 117:1395 118:364 119:254 120:1256 121:416 122:1708 123:389 124:327 125:1583 126:6 128:382 129:66 130:122 131:203 132:53 133:303 134:160 135:20 136:79 137:168 138:317 139:223 140:315 141:184 142:76 143:159 144:118 145:136 146:376 147:256 148:353 149:198 150:227 151:518 152:450 153:37 154:922 155:189 156:558 157:278 158:125 159:393 160:654 161:143 162:266 163:301 164:141 165:217 166:44 167:192 168:335 169:68 170:470 171:189 172:213 173:968 174:115 175:553 176:724 177:489 178:679 179:182 180:476 181:135 182:1609 183:1086 184:138 185:2227 186:221 187:464 188:592 189:299 190:474 191:90 192:1793 193:1129 194:914 195:767 196:293 197:361 198:759 199:554 200:785 201:513 202:2451 203:2235 204:284 205:264 206:298 207:317 208:240 209:307 210:1462 211:1147 212:759 213:516 214:2 216:370 217:561 218:803 219:61 220:567 221:389 222:134 223:1099 End of report