IPv4 R&E Routing Table Report 20:30 GMT Sat 24 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: 160158 Prefixes after maximum aggregation (per Origin AS): 63446 Deaggregation factor: 2.52 Unique aggregates announced (without unneeded subnets): 90437 Number of IPv4 prefixes with a valid ROA: 88161 Number of IPv4 prefixes with an invalid ROA: 83 Number of IPv4 prefixes with no ROA: 71849 Total ASes present in the Internet Routing Table: 14743 Prefixes per ASN: 10.86 Origin-only ASes present in the Internet Routing Table: 12454 Origin ASes announcing only one prefix: 6037 Transit ASes present in the Internet Routing Table: 2289 Transit-only ASes present in the Internet Routing Table: 522 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: 69 Number of instances of unregistered ASNs: 69 Number of 32-bit ASNs allocated by the RIRs: 46510 Number of 32-bit ASNs visible in the Routing Table: 7332 Prefixes from 32-bit ASNs in the Routing Table: 29751 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: 505075456 Equivalent to 30 /8s, 26 /16s and 215 /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: 39110 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 79031 Total APNIC prefixes after maximum aggregation: 25239 APNIC Deaggregation factor: 3.13 Prefixes being announced from the APNIC address blocks: 77359 Unique aggregates announced from the APNIC address blocks: 36960 APNIC Region origin ASes present in the Internet Routing Table: 5056 APNIC Prefixes per ASN: 15.30 APNIC Region origin ASes announcing only one prefix: 1877 APNIC Region transit ASes present in the Internet Routing Table: 758 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: 3256 Number of APNIC addresses announced to Internet: 188534784 Equivalent to 11 /8s, 60 /16s and 208 /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: 27130 Total ARIN prefixes after maximum aggregation: 14723 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26581 Unique aggregates announced from the ARIN address blocks: 20593 ARIN Region origin ASes present in the Internet Routing Table: 2131 ARIN Prefixes per ASN: 12.47 ARIN Region origin ASes announcing only one prefix: 1003 ARIN Region transit ASes present in the Internet Routing Table: 223 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: 475 Number of ARIN addresses announced to Internet: 166725120 Equivalent to 9 /8s, 240 /16s and 6 /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: 39879 Total RIPE prefixes after maximum aggregation: 18579 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 40738 Unique aggregates announced from the RIPE address blocks: 25401 RIPE Region origin ASes present in the Internet Routing Table: 4628 RIPE Prefixes per ASN: 8.80 RIPE Region origin ASes announcing only one prefix: 2142 RIPE Region transit ASes present in the Internet Routing Table: 668 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: 1624 Number of RIPE addresses announced to Internet: 125614848 Equivalent to 7 /8s, 124 /16s and 187 /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: 12474 Total LACNIC prefixes after maximum aggregation: 4465 LACNIC Deaggregation factor: 2.79 Prefixes being announced from the LACNIC address blocks: 11962 Unique aggregates announced from the LACNIC address blocks: 5750 LACNIC Region origin ASes present in the Internet Routing Table: 2283 LACNIC Prefixes per ASN: 5.24 LACNIC Region origin ASes announcing only one prefix: 973 LACNIC Region transit ASes present in the Internet Routing Table: 502 Average LACNIC Region AS path length visible: 7.4 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1922 Number of LACNIC addresses announced to Internet: 18202368 Equivalent to 1 /8s, 21 /16s and 191 /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: 1575 Total AfriNIC prefixes after maximum aggregation: 391 AfriNIC Deaggregation factor: 4.03 Prefixes being announced from the AfriNIC address blocks: 3476 Unique aggregates announced from the AfriNIC address blocks: 1700 AfriNIC Region origin ASes present in the Internet Routing Table: 104 AfriNIC Prefixes per ASN: 33.42 AfriNIC Region origin ASes announcing only one prefix: 42 AfriNIC Region transit ASes present in the Internet Routing Table: 33 Average AfriNIC Region AS path length visible: 7.0 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 55 Number of AfriNIC addresses announced to Internet: 5971968 Equivalent to 0 /8s, 91 /16s and 32 /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 10848 8755 97 CHINAMOBILE-CN China Mobile Communication 9498 4227 500 293 BBIL-AP BHARTI Airtel Ltd., IN 24560 2868 853 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2137 1066 461 VIETEL-AS-AP Viettel Group, VN 4766 1995 6033 934 KIXS-AS-KR Korea Telecom, KR 56046 1856 812 180 CMNET-JIANGSU-AP China Mobile communicati 45609 1849 824 323 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1591 726 76 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1482 192 50 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 2419 335 660 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2240 3629 1284 AMAZON-02, US 20115 2235 3096 513 CHARTER-20115, US 11492 1933 134 1044 CABLEONE, US 714 1238 4391 8 APPLE-ENGINEERING, US 8075 756 16021 638 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 638 1880 300 TWC-10796-MIDWEST, US 12083 581 192 88 WOW-INTERNET, US 2152 395 44 264 CENIC-2152, US 33363 387 1424 214 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 2311 1999 782 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 920 639 340 SAUDINETSTC-AS, SA 49505 861 92 357 SELECTEL, RU 9123 637 40 285 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 2018 686 269 UNINET, MX 7738 510 1527 64 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 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11014 126 10 26 CPS, AR 11340 110 25 52 Red Universitaria Nacional, CL 19089 107 18 45 Scala Data Centers, BR 262287 88 13 74 Latitude.sh LTDA, 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 545 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 37187 42 3 14 SKYBAND, MW 37215 36 8 1 MAREN, MW 10798 29 2 23 SBICSA, ZA 6879 24 2 9 ENSTINET-, EG 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 10848 8755 97 CHINAMOBILE-CN China Mobile Communication 9498 4227 500 293 BBIL-AP BHARTI Airtel Ltd., IN 39891 4179 255 52 ALJAWWALSTC-AS, SA 24560 2868 853 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2419 335 660 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2311 1999 782 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2240 3629 1284 AMAZON-02, US 20115 2235 3096 513 CHARTER-20115, US 7552 2137 1066 461 VIETEL-AS-AP Viettel Group, VN 8151 2018 686 269 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 4227 3934 BBIL-AP BHARTI Airtel Ltd., IN 24560 2868 2333 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 30036 2419 1759 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 2018 1749 UNINET, MX 20115 2235 1722 CHARTER-20115, US 7552 2137 1676 VIETEL-AS-AP Viettel Group, VN 56046 1856 1676 CMNET-JIANGSU-AP China Mobile communications co 12389 2311 1529 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 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 46123 UNALLOCATED 71.46.221.0/24 33363 BHN-33363, 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 /14:162 /15:395 /16:2466 /17:1319 /18:2760 /19:4439 /20:7722 /21:9567 /22:17395 /23:16605 /24:97169 /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 2102 2419 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1404 2311 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1325 1933 CABLEONE, US 8151 1109 2018 UNINET, MX 49505 597 861 SELECTEL, RU 20115 552 2235 CHARTER-20115, US 36914 521 545 KENET-AS, KE 9123 517 637 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 2:325 3:105 5:1098 8:77 12:79 13:89 14:393 15:58 16:63 17:325 18:74 20:28 23:713 24:594 25:2 27:611 31:532 32:2 34:3 35:37 36:1866 37:635 38:533 39:701 40:1 41:269 42:116 43:674 44:22 45:2348 46:785 47:64 49:208 50:319 51:138 52:259 54:62 57:28 58:266 59:452 60:95 61:780 62:554 63:129 64:353 65:283 66:300 67:292 68:77 69:263 70:48 71:83 72:246 74:198 75:65 76:62 77:487 78:461 79:240 80:224 81:345 82:366 83:183 84:187 85:374 86:116 87:312 88:98 89:480 90:134 91:1401 92:453 93:940 94:786 95:1473 96:266 97:146 98:68 99:47 101:484 102:118 103:8018 104:370 105:9 106:291 107:108 108:147 109:462 110:229 111:2100 112:970 113:299 114:836 115:379 116:427 117:1387 118:345 119:217 120:1316 121:427 122:1728 123:390 124:328 125:1586 126:6 128:382 129:66 130:128 131:212 132:51 133:302 134:163 135:20 136:78 137:170 138:340 139:220 140:324 141:192 142:81 143:167 144:128 145:137 146:372 147:229 148:196 149:196 150:221 151:522 152:453 153:37 154:915 155:192 156:461 157:284 158:128 159:395 160:646 161:143 162:274 163:317 164:144 165:223 166:45 167:195 168:607 169:69 170:491 171:193 172:233 173:978 174:121 175:554 176:727 177:526 178:688 179:201 180:478 181:131 182:1622 183:1114 184:138 185:2252 186:217 187:518 188:597 189:313 190:494 191:94 192:1836 193:1119 194:914 195:778 196:306 197:384 198:770 199:554 200:802 201:552 202:2534 203:2260 204:285 205:261 206:302 207:320 208:244 209:314 210:1480 211:1147 212:759 213:524 216:347 217:554 218:806 219:62 220:568 221:406 222:176 223:1191 End of report