IPv4 R&E Routing Table Report 20:30 GMT Tue 20 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: 159803 Prefixes after maximum aggregation (per Origin AS): 63222 Deaggregation factor: 2.53 Unique aggregates announced (without unneeded subnets): 89999 Number of IPv4 prefixes with a valid ROA: 87625 Number of IPv4 prefixes with an invalid ROA: 70 Number of IPv4 prefixes with no ROA: 72108 Total ASes present in the Internet Routing Table: 14600 Prefixes per ASN: 10.95 Origin-only ASes present in the Internet Routing Table: 12350 Origin ASes announcing only one prefix: 5956 Transit ASes present in the Internet Routing Table: 2250 Transit-only ASes present in the Internet Routing Table: 518 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: 70 Number of instances of unregistered ASNs: 70 Number of 32-bit ASNs allocated by the RIRs: 46463 Number of 32-bit ASNs visible in the Routing Table: 7192 Prefixes from 32-bit ASNs in the Routing Table: 29357 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: 41 Number of addresses announced to Internet: 506229760 Equivalent to 30 /8s, 44 /16s and 116 /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: 39046 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78812 Total APNIC prefixes after maximum aggregation: 25182 APNIC Deaggregation factor: 3.13 Prefixes being announced from the APNIC address blocks: 77138 Unique aggregates announced from the APNIC address blocks: 36724 APNIC Region origin ASes present in the Internet Routing Table: 5022 APNIC Prefixes per ASN: 15.36 APNIC Region origin ASes announcing only one prefix: 1870 APNIC Region transit ASes present in the Internet Routing Table: 750 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: 3219 Number of APNIC addresses announced to Internet: 189298432 Equivalent to 11 /8s, 72 /16s and 119 /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: 27114 Total ARIN prefixes after maximum aggregation: 14755 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26669 Unique aggregates announced from the ARIN address blocks: 20654 ARIN Region origin ASes present in the Internet Routing Table: 2119 ARIN Prefixes per ASN: 12.59 ARIN Region origin ASes announcing only one prefix: 989 ARIN Region transit ASes present in the Internet Routing Table: 216 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: 466 Number of ARIN addresses announced to Internet: 167416832 Equivalent to 9 /8s, 250 /16s and 148 /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: 39919 Total RIPE prefixes after maximum aggregation: 18434 RIPE Deaggregation factor: 2.17 Prefixes being announced from the RIPE address blocks: 40756 Unique aggregates announced from the RIPE address blocks: 25198 RIPE Region origin ASes present in the Internet Routing Table: 4619 RIPE Prefixes per ASN: 8.82 RIPE Region origin ASes announcing only one prefix: 2139 RIPE Region transit ASes present in the Internet Routing Table: 669 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: 1620 Number of RIPE addresses announced to Internet: 125313536 Equivalent to 7 /8s, 120 /16s and 34 /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: 12326 Total LACNIC prefixes after maximum aggregation: 4419 LACNIC Deaggregation factor: 2.79 Prefixes being announced from the LACNIC address blocks: 11759 Unique aggregates announced from the LACNIC address blocks: 5714 LACNIC Region origin ASes present in the Internet Routing Table: 2198 LACNIC Prefixes per ASN: 5.35 LACNIC Region origin ASes announcing only one prefix: 919 LACNIC Region transit ASes present in the Internet Routing Table: 485 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: 1835 Number of LACNIC addresses announced to Internet: 18242304 Equivalent to 1 /8s, 22 /16s and 91 /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: 1562 Total AfriNIC prefixes after maximum aggregation: 382 AfriNIC Deaggregation factor: 4.09 Prefixes being announced from the AfriNIC address blocks: 3440 Unique aggregates announced from the AfriNIC address blocks: 1679 AfriNIC Region origin ASes present in the Internet Routing Table: 104 AfriNIC Prefixes per ASN: 33.08 AfriNIC Region origin ASes announcing only one prefix: 39 AfriNIC Region transit ASes present in the Internet Routing Table: 33 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: 52 Number of AfriNIC addresses announced to Internet: 5928704 Equivalent to 0 /8s, 90 /16s and 119 /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 10915 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4224 500 292 BBIL-AP BHARTI Airtel Ltd., IN 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2138 1078 454 VIETEL-AS-AP Viettel Group, VN 4766 1937 6014 940 KIXS-AS-KR Korea Telecom, KR 45609 1849 824 323 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1844 812 180 CMNET-JIANGSU-AP China Mobile communicati 56041 1591 726 76 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 2238 3629 1283 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 2308 1999 781 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 923 640 341 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 51375 386 43 14 VIVA, BH 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 1967 682 261 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 556 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 328543 19 5 4 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 10915 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4224 500 292 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 2308 1999 781 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2238 3629 1283 AMAZON-02, US 20115 2235 3096 513 CHARTER-20115, US 7552 2138 1078 454 VIETEL-AS-AP Viettel Group, VN 8151 1967 682 261 UNINET, MX 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 3932 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 8151 1967 1706 UNINET, MX 7552 2138 1684 VIETEL-AS-AP Viettel Group, VN 56046 1844 1664 CMNET-JIANGSU-AP China Mobile communications co 12389 2308 1527 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 45609 1849 1526 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 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 /11:13 /12:47 /13:82 /14:166 /15:397 /16:2481 /17:1346 /18:2809 /19:4431 /20:7649 /21:9486 /22:17246 /23:16462 /24:97171 /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 1404 2308 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1325 1926 CABLEONE, US 8151 1086 1967 UNINET, MX 49505 597 861 SELECTEL, RU 20115 552 2235 CHARTER-20115, US 36914 532 556 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 5:1096 8:79 12:78 13:89 14:381 15:58 16:63 17:324 18:74 20:28 23:703 24:595 25:2 27:620 31:528 32:2 34:3 35:37 36:1869 37:699 38:529 39:705 40:1 41:263 42:116 43:673 44:23 45:2442 46:838 47:63 49:257 50:321 51:138 52:259 54:62 57:28 58:267 59:431 60:95 61:780 62:556 63:129 64:349 65:284 66:300 67:292 68:72 69:262 70:30 71:84 72:229 74:198 75:65 76:62 77:482 78:454 79:240 80:222 81:346 82:346 83:183 84:186 85:369 86:114 87:317 88:99 89:464 90:134 91:1398 92:449 93:939 94:820 95:1477 96:265 97:146 98:68 99:47 101:459 102:121 103:7990 104:370 105:9 106:290 107:159 108:146 109:545 110:228 111:2161 112:965 113:300 114:827 115:320 116:417 117:1374 118:348 119:244 120:1311 121:414 122:1716 123:394 124:329 125:1584 126:6 128:382 129:67 130:126 131:206 132:53 133:302 134:163 135:24 136:79 137:169 138:318 139:219 140:322 141:191 142:76 143:162 144:130 145:137 146:372 147:233 148:357 149:199 150:226 151:521 152:453 153:37 154:922 155:190 156:463 157:290 158:128 159:395 160:657 161:142 162:272 163:306 164:141 165:221 166:44 167:188 168:592 169:68 170:465 171:192 172:225 173:976 174:119 175:553 176:728 177:504 178:689 179:176 180:470 181:128 182:1620 183:1148 184:138 185:2229 186:221 187:500 188:604 189:310 190:469 191:90 192:1847 193:1124 194:906 195:775 196:308 197:377 198:770 199:557 200:804 201:534 202:2500 203:2214 204:288 205:261 206:301 207:319 208:242 209:312 210:1477 211:1174 212:760 213:516 214:2 216:349 217:554 218:805 219:64 220:558 221:404 222:131 223:1130 End of report