IPv4 R&E Routing Table Report 20:30 GMT Tue 06 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: 158995 Prefixes after maximum aggregation (per Origin AS): 63304 Deaggregation factor: 2.51 Unique aggregates announced (without unneeded subnets): 90323 Number of IPv4 prefixes with a valid ROA: 87200 Number of IPv4 prefixes with an invalid ROA: 139 Number of IPv4 prefixes with no ROA: 71656 Total ASes present in the Internet Routing Table: 14575 Prefixes per ASN: 10.91 Origin-only ASes present in the Internet Routing Table: 12337 Origin ASes announcing only one prefix: 5962 Transit ASes present in the Internet Routing Table: 2238 Transit-only ASes present in the Internet Routing Table: 504 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: 47 Max AS path prepend of ASN (212940) 40 Prefixes from unregistered ASNs in the Routing Table: 88 Number of instances of unregistered ASNs: 89 Number of 32-bit ASNs allocated by the RIRs: 46340 Number of 32-bit ASNs visible in the Routing Table: 7186 Prefixes from 32-bit ASNs in the Routing Table: 29204 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: 67 Number of addresses announced to Internet: 506540288 Equivalent to 30 /8s, 49 /16s and 49 /24s Percentage of available address space announced: 13.7 Percentage of allocated address space announced: 13.7 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: 39002 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78371 Total APNIC prefixes after maximum aggregation: 25338 APNIC Deaggregation factor: 3.09 Prefixes being announced from the APNIC address blocks: 76646 Unique aggregates announced from the APNIC address blocks: 37171 APNIC Region origin ASes present in the Internet Routing Table: 5006 APNIC Prefixes per ASN: 15.31 APNIC Region origin ASes announcing only one prefix: 1863 APNIC Region transit ASes present in the Internet Routing Table: 742 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 47 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3224 Number of APNIC addresses announced to Internet: 189373696 Equivalent to 11 /8s, 73 /16s and 157 /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: 27042 Total ARIN prefixes after maximum aggregation: 14649 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 26622 Unique aggregates announced from the ARIN address blocks: 20481 ARIN Region origin ASes present in the Internet Routing Table: 2120 ARIN Prefixes per ASN: 12.56 ARIN Region origin ASes announcing only one prefix: 996 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: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 463 Number of ARIN addresses announced to Internet: 167687936 Equivalent to 9 /8s, 254 /16s and 183 /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: 39583 Total RIPE prefixes after maximum aggregation: 18402 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 40459 Unique aggregates announced from the RIPE address blocks: 25143 RIPE Region origin ASes present in the Internet Routing Table: 4609 RIPE Prefixes per ASN: 8.78 RIPE Region origin ASes announcing only one prefix: 2126 RIPE Region transit ASes present in the Internet Routing Table: 661 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: 124934144 Equivalent to 7 /8s, 114 /16s and 88 /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: 12089 Total LACNIC prefixes after maximum aggregation: 4383 LACNIC Deaggregation factor: 2.76 Prefixes being announced from the LACNIC address blocks: 11528 Unique aggregates announced from the LACNIC address blocks: 5662 LACNIC Region origin ASes present in the Internet Routing Table: 2183 LACNIC Prefixes per ASN: 5.28 LACNIC Region origin ASes announcing only one prefix: 928 LACNIC Region transit ASes present in the Internet Routing Table: 472 Average LACNIC Region AS path length visible: 7.4 Max LACNIC Region AS path length visible: 24 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1822 Number of LACNIC addresses announced to Internet: 18236416 Equivalent to 1 /8s, 22 /16s and 68 /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: 1822 Total AfriNIC prefixes after maximum aggregation: 469 AfriNIC Deaggregation factor: 3.88 Prefixes being announced from the AfriNIC address blocks: 3673 Unique aggregates announced from the AfriNIC address blocks: 1831 AfriNIC Region origin ASes present in the Internet Routing Table: 127 AfriNIC Prefixes per ASN: 28.92 AfriNIC Region origin ASes announcing only one prefix: 49 AfriNIC Region transit ASes present in the Internet Routing Table: 36 Average AfriNIC Region AS path length visible: 7.7 Max AfriNIC Region AS path length visible: 28 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 70 Number of AfriNIC addresses announced to Internet: 6276096 Equivalent to 0 /8s, 95 /16s and 196 /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 10367 8754 87 CHINAMOBILE-CN China Mobile Communication 9498 4178 498 269 BBIL-AP BHARTI Airtel Ltd., IN 24560 2860 851 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2244 1083 461 VIETEL-AS-AP Viettel Group, VN 4766 2031 6035 952 KIXS-AS-KR Korea Telecom, KR 45609 1849 826 321 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1688 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 2401 333 692 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2237 3097 507 CHARTER-20115, US 16509 2228 3627 1271 AMAZON-02, US 11492 1911 133 1042 CABLEONE, US 714 1227 4391 8 APPLE-ENGINEERING, US 8075 751 16020 634 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1912 301 TWC-10796-MIDWEST, US 12083 575 192 88 WOW-INTERNET, US 2152 393 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 2306 1997 778 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 916 639 329 SAUDINETSTC-AS, SA 49505 859 92 356 SELECTEL, RU 9123 624 39 280 TIMEWEB-AS, RU 50010 616 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 482 180 179 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 1853 675 245 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 547 82 3 KENET-AS, KE 2018 372 318 69 TENET-1, ZA 36873 198 83 30 VNL1-AS, NG 15399 94 8 45 WANANCHI-, KE 30999 74 25 32 EMTEL-AS-AP, MU 23889 49 27 29 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37215 34 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37531 22 2 18 AIRTEL-NIGER, NE 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 10367 8754 87 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4178 498 269 BBIL-AP BHARTI Airtel Ltd., IN 24560 2860 851 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2401 333 692 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2306 1997 778 ROSTELECOM-AS PJSC Rostelecom. Technical 7552 2244 1083 461 VIETEL-AS-AP Viettel Group, VN 20115 2237 3097 507 CHARTER-20115, US 16509 2228 3627 1271 AMAZON-02, US 4766 2031 6035 952 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 4178 3909 BBIL-AP BHARTI Airtel Ltd., IN 24560 2860 2324 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 7552 2244 1783 VIETEL-AS-AP Viettel Group, VN 20115 2237 1730 CHARTER-20115, US 30036 2401 1709 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 1853 1608 UNINET, MX 12389 2306 1528 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 45609 1849 1528 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56046 1688 1508 CMNET-JIANGSU-AP China Mobile communications co 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 36288 UNALLOCATED 64.79.154.0/24 293 ESNET, US 40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, 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 102.219.4.0/22 Origin: 328932 RESERVED, ZZ 102.219.4.0/22 Transit: 36873 VNL1-AS, NG 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 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 /16:2489 /17:1332 /18:2811 /19:4428 /20:7694 /21:9453 /22:17272 /23:16421 /24:96372 /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 2085 2401 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1401 2306 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1324 1911 CABLEONE, US 8151 1023 1853 UNINET, MX 49505 595 859 SELECTEL, RU 20115 553 2237 CHARTER-20115, US 36914 523 547 KENET-AS, KE 50010 514 616 NAWRAS-AS Sultanate of Oman, OM 9123 506 624 TIMEWEB-AS, RU Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:197 2:321 3:103 5:1091 8:64 12:81 13:85 14:381 15:58 16:63 17:316 18:73 20:28 23:719 24:592 25:2 27:621 31:528 32:2 34:3 35:37 36:1500 37:642 38:511 39:700 40:1 41:248 42:144 43:675 44:19 45:2321 46:787 47:64 49:209 50:319 51:138 52:258 54:62 57:28 58:301 59:450 60:95 61:778 62:555 63:127 64:371 65:282 66:301 67:310 68:71 69:268 70:32 71:83 72:247 74:198 75:66 76:62 77:489 78:452 79:239 80:226 81:342 82:355 83:195 84:185 85:375 86:126 87:311 88:100 89:465 90:133 91:1395 92:452 93:935 94:786 95:1472 96:266 97:146 98:68 99:47 101:457 102:142 103:8051 104:363 105:179 106:287 107:109 108:142 109:456 110:232 111:2114 112:931 113:319 114:815 115:308 116:410 117:1390 118:425 119:253 120:1243 121:418 122:1756 123:458 124:328 125:1585 126:6 128:401 129:67 130:129 131:197 132:51 133:303 134:163 135:24 136:79 137:167 138:304 139:227 140:316 141:186 142:77 143:161 144:120 145:135 146:374 147:256 148:355 149:199 150:260 151:516 152:452 153:37 154:943 155:189 156:467 157:280 158:127 159:394 160:670 161:148 162:270 163:298 164:146 165:218 166:44 167:187 168:333 169:75 170:460 171:197 172:214 173:968 174:119 175:565 176:723 177:487 178:689 179:178 180:459 181:135 182:1610 183:1063 184:139 185:2252 186:209 187:468 188:598 189:300 190:470 191:93 192:1847 193:1130 194:919 195:765 196:288 197:408 198:761 199:559 200:784 201:513 202:2487 203:2258 204:285 205:269 206:302 207:317 208:242 209:312 210:1464 211:1146 212:757 213:514 214:2 216:369 217:560 218:804 219:66 220:568 221:388 222:135 223:1087 End of report