IPv4 R&E Routing Table Report 20:30 GMT Thu 28 Aug, 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: 164560 Prefixes after maximum aggregation (per Origin AS): 63003 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 90762 Number of IPv4 prefixes with a valid ROA: 91196 Number of IPv4 prefixes with an invalid ROA: 55 Number of IPv4 prefixes with no ROA: 73309 Total ASes present in the Internet Routing Table: 14606 Prefixes per ASN: 11.27 Origin-only ASes present in the Internet Routing Table: 12338 Origin ASes announcing only one prefix: 6028 Transit ASes present in the Internet Routing Table: 2268 Transit-only ASes present in the Internet Routing Table: 529 Paths with bogon ASNs present in the IPv4 Routing Table: 1 Average AS path length visible in the Internet Routing Table: 6.8 Max AS path length visible: 53 Max AS path prepend of ASN (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 100 Number of instances of unregistered ASNs: 100 Number of 32-bit ASNs allocated by the RIRs: 47273 Number of 32-bit ASNs visible in the Routing Table: 7280 Prefixes from 32-bit ASNs in the Routing Table: 30226 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: 33 Number of addresses announced to Internet: 486770944 Equivalent to 29 /8s, 3 /16s and 137 /24s Percentage of available address space announced: 13.1 Percentage of allocated address space announced: 13.1 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: 40336 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 82969 Total APNIC prefixes after maximum aggregation: 24012 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 81205 Unique aggregates announced from the APNIC address blocks: 35347 APNIC Region origin ASes present in the Internet Routing Table: 4778 APNIC Prefixes per ASN: 17.00 APNIC Region origin ASes announcing only one prefix: 1743 APNIC Region transit ASes present in the Internet Routing Table: 731 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3129 Number of APNIC addresses announced to Internet: 189806592 Equivalent to 11 /8s, 80 /16s and 56 /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: 26056 Total ARIN prefixes after maximum aggregation: 14193 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 25693 Unique aggregates announced from the ARIN address blocks: 20884 ARIN Region origin ASes present in the Internet Routing Table: 2092 ARIN Prefixes per ASN: 12.28 ARIN Region origin ASes announcing only one prefix: 998 ARIN Region transit ASes present in the Internet Routing Table: 217 Average ARIN Region AS path length visible: 5.0 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 484 Number of ARIN addresses announced to Internet: 149026816 Equivalent to 8 /8s, 225 /16s and 248 /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: 41689 Total RIPE prefixes after maximum aggregation: 19797 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 42758 Unique aggregates announced from the RIPE address blocks: 26842 RIPE Region origin ASes present in the Internet Routing Table: 4845 RIPE Prefixes per ASN: 8.83 RIPE Region origin ASes announcing only one prefix: 2284 RIPE Region transit ASes present in the Internet Routing Table: 708 Average RIPE Region AS path length visible: 6.2 Max RIPE Region AS path length visible: 50 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1750 Number of RIPE addresses announced to Internet: 124565504 Equivalent to 7 /8s, 108 /16s and 184 /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: 12673 Total LACNIC prefixes after maximum aggregation: 4549 LACNIC Deaggregation factor: 2.79 Prefixes being announced from the LACNIC address blocks: 12329 Unique aggregates announced from the LACNIC address blocks: 6007 LACNIC Region origin ASes present in the Internet Routing Table: 2222 LACNIC Prefixes per ASN: 5.55 LACNIC Region origin ASes announcing only one prefix: 952 LACNIC Region transit ASes present in the Internet Routing Table: 480 Average LACNIC Region AS path length visible: 7.2 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1858 Number of LACNIC addresses announced to Internet: 18550784 Equivalent to 1 /8s, 27 /16s and 16 /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: 1073 Total AfriNIC prefixes after maximum aggregation: 378 AfriNIC Deaggregation factor: 2.84 Prefixes being announced from the AfriNIC address blocks: 2542 Unique aggregates announced from the AfriNIC address blocks: 1653 AfriNIC Region origin ASes present in the Internet Routing Table: 109 AfriNIC Prefixes per ASN: 23.32 AfriNIC Region origin ASes announcing only one prefix: 51 AfriNIC Region transit ASes present in the Internet Routing Table: 33 Average AfriNIC Region AS path length visible: 5.6 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 59 Number of AfriNIC addresses announced to Internet: 4803328 Equivalent to 0 /8s, 73 /16s and 75 /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 12731 8729 116 CHINAMOBILE-CN China Mobile Communication 9498 4401 502 303 BBIL-AP BHARTI Airtel Ltd., IN 7552 3088 1179 269 VIETEL-AS-AP Viettel Group, VN 56046 2923 812 179 CMNET-JIANGSU-AP China Mobile communicati 24560 2848 834 618 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45609 1952 843 344 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 4766 1925 6027 909 KIXS-AS-KR Korea Telecom, KR 56047 1690 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1678 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 9919 974 170 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 2506 348 617 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2369 3797 1391 AMAZON-02, US 20115 2238 3095 522 CHARTER-20115, US 11492 1908 132 1052 CABLEONE, US 714 1250 4391 8 APPLE-ENGINEERING, US 8075 813 16025 678 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 635 1879 297 TWC-10796-MIDWEST, US 12083 551 192 88 WOW-INTERNET, US 2152 441 49 278 CENIC-2152, US 33363 381 1424 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 4180 255 53 ALJAWWALSTC-AS, SA 12389 2982 2201 945 ROSTELECOM-AS PJSC Rostelecom. Technical 49505 948 102 399 SELECTEL, RU 25019 883 609 383 SAUDINETSTC-AS, SA 9123 681 43 308 TIMEWEB-AS, RU 9198 520 207 189 KAZTELECOM-AS, KZ 50010 498 72 10 NAWRAS-AS Sultanate of Oman, OM 5416 430 30 9 Internet Service Provider, BH 9155 429 37 9 QNET Kuwait, KW 21299 428 77 62 KAR-TEL-AS Almaty, Republic of Kazakhstan 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 2451 709 243 UNINET, MX 8167 342 1089 44 V tal, BR 7738 295 927 70 V tal, BR 28201 219 16 28 Companhia Itabirana Telecomunicacoes Ltda 1916 207 177 41 Rede Nacional de Ensino e Pesquisa, BR 28391 159 10 71 Universidad Juarez Autonoma de Tabasco, M 262287 149 25 125 Latitude.sh LTDA, BR 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11014 122 10 26 CPS, AR 11340 110 9 50 Red Universitaria Nacional, CL 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 2018 375 318 69 TENET-1, ZA 30999 93 68 5 EMTEL-AS-AP, MU 36914 82 8 35 KENET-AS, KE 23889 55 37 31 MauritiusTelecom, MU 10798 54 3 36 SBICSA, ZA 8094 47 48 18 PUKNET, ZA 37215 38 8 1 MAREN, MW 327885 25 4 3 Viettel-Tanzania, TZ 6879 24 2 9 ENSTINET-, EG 37326 17 1 2 GICO, SO 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 12731 8729 116 CHINAMOBILE-CN China Mobile Communication 9498 4401 502 303 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 7552 3088 1179 269 VIETEL-AS-AP Viettel Group, VN 12389 2982 2201 945 ROSTELECOM-AS PJSC Rostelecom. Technical 56046 2923 812 179 CMNET-JIANGSU-AP China Mobile communicati 24560 2848 834 618 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2506 348 617 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 2451 709 243 UNINET, MX 16509 2369 3797 1391 AMAZON-02, US 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 4180 4127 ALJAWWALSTC-AS, SA 9498 4401 4098 BBIL-AP BHARTI Airtel Ltd., IN 7552 3088 2819 VIETEL-AS-AP Viettel Group, VN 56046 2923 2744 CMNET-JIANGSU-AP China Mobile communications co 24560 2848 2230 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 8151 2451 2208 UNINET, MX 12389 2982 2037 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 30036 2506 1889 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2238 1716 CHARTER-20115, US 56047 1690 1640 CMNET-HUNAN-AP China Mobile communications corp 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 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 269121 UNALLOCATED 45.179.222.0/24 263047 Linkfull melhor fornece 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 103.83.18.0/24 Origin: 133457 SSB-AS-AP ScopeTel Sdn Bhd, MY 103.83.18.0/24 Transit: 136400 ACG-AFG-AS-AP Asia Consultancy Group, AF 103.96.76.0/24 Origin: 132238 AHSL-AS-AP Array Health, NZ 103.96.76.0/24 Transit: 17981 CAMBOTECH-KH-AS Cambo TechnologyISP Co., 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 /10:12 /11:12 /12:46 /13:80 /14:153 /15:382 /16:2349 /17:1292 /18:2657 /19:4423 /20:7702 /21:10540 /22:17311 /23:16698 /24:100900 /25:0 /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 4180 ALJAWWALSTC-AS, SA 30036 2187 2506 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1902 2982 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 8151 1348 2451 UNINET, MX 11492 1315 1908 CABLEONE, US 49505 664 948 SELECTEL, RU 9123 555 681 TIMEWEB-AS, RU 20115 548 2238 CHARTER-20115, US 16509 515 2369 AMAZON-02, US 12083 428 551 WOW-INTERNET, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:242 2:306 3:120 5:1129 8:78 12:76 13:97 14:436 15:59 16:61 17:335 18:75 20:28 23:639 24:589 25:2 27:600 31:565 32:2 34:3 35:55 36:3204 37:654 38:542 39:750 40:2 41:139 42:109 43:674 44:18 45:2337 46:810 47:66 49:211 50:342 51:136 52:256 54:68 57:23 58:239 59:548 60:103 61:806 62:583 63:130 64:375 65:174 66:360 67:309 68:67 69:264 70:41 71:78 72:232 74:224 75:66 76:62 77:520 78:454 79:268 80:236 81:336 82:410 83:196 84:199 85:479 86:130 87:338 88:142 89:509 90:138 91:1428 92:454 93:964 94:872 95:1543 96:265 97:146 98:70 99:45 101:503 102:101 103:7880 104:337 105:10 106:291 107:145 108:174 109:547 110:259 111:2469 112:1308 113:293 114:885 115:301 116:400 117:1456 118:279 119:235 120:1566 121:378 122:1930 123:613 124:317 125:1628 126:4 128:389 129:70 130:111 131:182 132:52 133:312 134:114 135:26 136:82 137:183 138:300 139:135 140:311 141:155 142:80 143:160 144:129 145:138 146:362 147:244 148:358 149:216 150:235 151:574 152:461 153:45 154:714 155:208 156:534 157:259 158:122 159:389 160:644 161:151 162:281 163:361 164:161 165:273 166:55 167:152 168:308 169:70 170:458 171:221 172:184 173:1005 174:112 175:499 176:760 177:518 178:728 179:170 180:460 181:184 182:1645 183:1409 184:103 185:2381 186:247 187:659 188:774 189:364 190:428 191:100 192:1759 193:1168 194:970 195:827 196:309 197:49 198:749 199:486 200:804 201:589 202:2460 203:1912 204:273 205:264 206:314 207:349 208:240 209:322 210:1367 211:1177 212:839 213:530 216:383 217:582 218:861 219:51 220:581 221:523 222:129 223:1568 End of report