IPv4 R&E Routing Table Report 20:30 GMT Mon 19 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: 158345 Prefixes after maximum aggregation (per Origin AS): 62784 Deaggregation factor: 2.52 Unique aggregates announced (without unneeded subnets): 89440 Number of IPv4 prefixes with a valid ROA: 86413 Number of IPv4 prefixes with an invalid ROA: 69 Number of IPv4 prefixes with no ROA: 71863 Total ASes present in the Internet Routing Table: 14640 Prefixes per ASN: 10.82 Origin-only ASes present in the Internet Routing Table: 12378 Origin ASes announcing only one prefix: 5977 Transit ASes present in the Internet Routing Table: 2262 Transit-only ASes present in the Internet Routing Table: 526 Paths with bogon ASNs present in the IPv4 Routing Table: 1 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: 77 Number of instances of unregistered ASNs: 77 Number of 32-bit ASNs allocated by the RIRs: 46452 Number of 32-bit ASNs visible in the Routing Table: 7209 Prefixes from 32-bit ASNs in the Routing Table: 29142 Number of bogon 32-bit ASNs visible in the Routing Table: 2 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 42 Number of addresses announced to Internet: 510957824 Equivalent to 30 /8s, 116 /16s and 153 /24s Percentage of available address space announced: 13.8 Percentage of allocated address space announced: 13.8 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: 38324 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78573 Total APNIC prefixes after maximum aggregation: 25008 APNIC Deaggregation factor: 3.14 Prefixes being announced from the APNIC address blocks: 76956 Unique aggregates announced from the APNIC address blocks: 36649 APNIC Region origin ASes present in the Internet Routing Table: 5028 APNIC Prefixes per ASN: 15.31 APNIC Region origin ASes announcing only one prefix: 1876 APNIC Region transit ASes present in the Internet Routing Table: 747 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3222 Number of APNIC addresses announced to Internet: 195203840 Equivalent to 11 /8s, 162 /16s and 147 /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: 26970 Total ARIN prefixes after maximum aggregation: 14671 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26512 Unique aggregates announced from the ARIN address blocks: 20502 ARIN Region origin ASes present in the Internet Routing Table: 2127 ARIN Prefixes per ASN: 12.46 ARIN Region origin ASes announcing only one prefix: 997 ARIN Region transit ASes present in the Internet Routing Table: 221 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: 470 Number of ARIN addresses announced to Internet: 167261440 Equivalent to 9 /8s, 248 /16s and 53 /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: 39436 Total RIPE prefixes after maximum aggregation: 18265 RIPE Deaggregation factor: 2.16 Prefixes being announced from the RIPE address blocks: 40340 Unique aggregates announced from the RIPE address blocks: 25047 RIPE Region origin ASes present in the Internet Routing Table: 4606 RIPE Prefixes per ASN: 8.76 RIPE Region origin ASes announcing only one prefix: 2132 RIPE Region transit ASes present in the Internet Routing Table: 664 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: 1605 Number of RIPE addresses announced to Internet: 125170176 Equivalent to 7 /8s, 117 /16s and 242 /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: 11699 Total LACNIC prefixes after maximum aggregation: 4387 LACNIC Deaggregation factor: 2.67 Prefixes being announced from the LACNIC address blocks: 11133 Unique aggregates announced from the LACNIC address blocks: 5605 LACNIC Region origin ASes present in the Internet Routing Table: 2217 LACNIC Prefixes per ASN: 5.02 LACNIC Region origin ASes announcing only one prefix: 927 LACNIC Region transit ASes present in the Internet Routing Table: 487 Average LACNIC Region AS path length visible: 7.7 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1848 Number of LACNIC addresses announced to Internet: 17416448 Equivalent to 1 /8s, 9 /16s and 193 /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: 1590 Total AfriNIC prefixes after maximum aggregation: 396 AfriNIC Deaggregation factor: 4.02 Prefixes being announced from the AfriNIC address blocks: 3362 Unique aggregates announced from the AfriNIC address blocks: 1606 AfriNIC Region origin ASes present in the Internet Routing Table: 114 AfriNIC Prefixes per ASN: 29.49 AfriNIC Region origin ASes announcing only one prefix: 45 AfriNIC Region transit ASes present in the Internet Routing Table: 35 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: 64 Number of AfriNIC addresses announced to Internet: 5875712 Equivalent to 0 /8s, 89 /16s and 168 /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 10816 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4224 500 293 BBIL-AP BHARTI Airtel Ltd., IN 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2135 1078 454 VIETEL-AS-AP Viettel Group, VN 4766 1994 6033 936 KIXS-AS-KR Korea Telecom, KR 45609 1841 822 326 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1781 812 180 CMNET-JIANGSU-AP China Mobile communicati 56041 1577 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1485 192 53 CMNET-HUNAN-AP China Mobile communication 9919 971 170 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 2415 334 668 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2243 3629 1286 AMAZON-02, US 20115 2235 3096 513 CHARTER-20115, US 11492 1926 134 1045 CABLEONE, US 714 1236 4391 8 APPLE-ENGINEERING, US 8075 756 16021 638 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 638 1880 300 TWC-10796-MIDWEST, US 12083 580 192 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 2309 1999 781 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 919 639 339 SAUDINETSTC-AS, SA 49505 861 92 357 SELECTEL, RU 9123 633 40 282 TIMEWEB-AS, RU 50010 617 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 483 188 175 KAZTELECOM-AS, KZ 9155 428 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 1330 469 196 UNINET, MX 7738 571 1703 62 V tal, BR 8167 342 1089 44 V tal, BR 1916 242 177 40 Rede Nacional de Ensino e Pesquisa, BR 28201 219 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 127 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 552 82 3 KENET-AS, KE 2018 373 318 69 TENET-1, ZA 30999 74 25 32 EMTEL-AS-AP, MU 15399 71 6 26 WANANCHI-, KE 23889 49 27 29 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37215 36 8 1 MAREN, MW 10798 29 2 23 SBICSA, ZA 6879 24 2 9 ENSTINET-, EG 328137 24 2 5 Web-Squad-Connect-AS, ZA 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 10816 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4224 500 293 BBIL-AP BHARTI Airtel Ltd., IN 39891 4179 255 52 ALJAWWALSTC-AS, SA 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2415 334 668 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2309 1999 781 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2243 3629 1286 AMAZON-02, US 20115 2235 3096 513 CHARTER-20115, US 7552 2135 1078 454 VIETEL-AS-AP Viettel Group, VN 4766 1994 6033 936 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 4224 3931 BBIL-AP BHARTI Airtel Ltd., IN 24560 2865 2331 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 30036 2415 1747 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2235 1722 CHARTER-20115, US 7552 2135 1681 VIETEL-AS-AP Viettel Group, VN 56046 1781 1601 CMNET-JIANGSU-AP China Mobile communications co 12389 2309 1528 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 45609 1841 1515 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56041 1577 1503 CMNET-ZHEJIANG-AP China Mobile communications c 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 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 26345 UNALLOCATED 71.13.182.0/24 20115 CHARTER-20115, 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 /11:14 /12:48 /13:84 /14:167 /15:400 /16:2497 /17:1351 /18:2808 /19:4359 /20:7647 /21:9274 /22:17168 /23:16342 /24:96169 /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 2099 2415 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1403 2309 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1325 1926 CABLEONE, US 8151 778 1330 UNINET, MX 49505 597 861 SELECTEL, RU 20115 552 2235 CHARTER-20115, US 36914 528 552 KENET-AS, KE 9123 515 633 TIMEWEB-AS, RU 50010 515 617 NAWRAS-AS Sultanate of Oman, OM Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:163 2:321 3:104 5:1085 8:76 12:78 13:89 14:381 15:58 16:63 17:324 18:74 20:28 23:715 24:596 25:2 27:623 31:529 32:2 34:3 35:37 36:1812 37:644 38:519 39:703 40:1 41:243 42:115 43:657 44:23 45:2317 46:786 47:63 49:257 50:320 51:138 52:258 54:62 57:28 58:267 59:434 60:95 61:783 62:555 63:129 64:353 65:282 66:299 67:291 68:72 69:262 70:32 71:84 72:229 74:197 75:65 76:62 77:482 78:452 79:240 80:222 81:345 82:345 83:182 84:184 85:369 86:114 87:311 88:99 89:459 90:134 91:1389 92:449 93:928 94:785 95:1457 96:265 97:146 98:68 99:47 101:460 102:141 103:7971 104:367 105:9 106:291 107:108 108:146 109:473 110:228 111:2156 112:947 113:300 114:829 115:297 116:412 117:1376 118:321 119:244 120:1291 121:414 122:1718 123:390 124:327 125:1585 126:6 128:383 129:67 130:126 131:210 132:53 133:302 134:163 135:24 136:79 137:168 138:322 139:225 140:318 141:192 142:76 143:157 144:124 145:137 146:370 147:233 148:356 149:199 150:227 151:521 152:453 153:37 154:896 155:190 156:462 157:290 158:128 159:395 160:661 161:129 162:276 163:305 164:141 165:221 166:44 167:182 168:589 169:68 170:465 171:192 172:231 173:977 174:120 175:557 176:728 177:478 178:675 179:178 180:474 181:140 182:1619 183:1127 184:138 185:2221 186:224 187:403 188:591 189:260 190:469 191:94 192:1838 193:1123 194:906 195:770 196:309 197:371 198:766 199:557 200:795 201:438 202:2495 203:2212 204:289 205:262 206:305 207:320 208:242 209:310 210:1484 211:1182 212:760 213:515 214:2 216:348 217:556 218:804 219:64 220:569 221:394 222:134 223:1122 End of report