IPv4 R&E Routing Table Report 20:30 GMT Thu 05 Jun, 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: 160432 Prefixes after maximum aggregation (per Origin AS): 63628 Deaggregation factor: 2.52 Unique aggregates announced (without unneeded subnets): 90336 Number of IPv4 prefixes with a valid ROA: 88537 Number of IPv4 prefixes with an invalid ROA: 74 Number of IPv4 prefixes with no ROA: 71821 Total ASes present in the Internet Routing Table: 14693 Prefixes per ASN: 10.92 Origin-only ASes present in the Internet Routing Table: 12419 Origin ASes announcing only one prefix: 6026 Transit ASes present in the Internet Routing Table: 2274 Transit-only ASes present in the Internet Routing Table: 502 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: 46582 Number of 32-bit ASNs visible in the Routing Table: 7251 Prefixes from 32-bit ASNs in the Routing Table: 30139 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: 31 Number of addresses announced to Internet: 504336384 Equivalent to 30 /8s, 15 /16s and 144 /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: 39369 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 79075 Total APNIC prefixes after maximum aggregation: 25027 APNIC Deaggregation factor: 3.16 Prefixes being announced from the APNIC address blocks: 77313 Unique aggregates announced from the APNIC address blocks: 36547 APNIC Region origin ASes present in the Internet Routing Table: 4978 APNIC Prefixes per ASN: 15.53 APNIC Region origin ASes announcing only one prefix: 1843 APNIC Region transit ASes present in the Internet Routing Table: 744 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: 3177 Number of APNIC addresses announced to Internet: 188374784 Equivalent to 11 /8s, 58 /16s and 95 /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: 26811 Total ARIN prefixes after maximum aggregation: 14580 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26486 Unique aggregates announced from the ARIN address blocks: 20493 ARIN Region origin ASes present in the Internet Routing Table: 2135 ARIN Prefixes per ASN: 12.41 ARIN Region origin ASes announcing only one prefix: 1006 ARIN Region transit ASes present in the Internet Routing Table: 217 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: 166181376 Equivalent to 9 /8s, 231 /16s and 186 /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: 40340 Total RIPE prefixes after maximum aggregation: 19085 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 41117 Unique aggregates announced from the RIPE address blocks: 25842 RIPE Region origin ASes present in the Internet Routing Table: 4710 RIPE Prefixes per ASN: 8.73 RIPE Region origin ASes announcing only one prefix: 2190 RIPE Region transit ASes present in the Internet Routing Table: 683 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: 1671 Number of RIPE addresses announced to Internet: 125522176 Equivalent to 7 /8s, 123 /16s and 81 /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: 12521 Total LACNIC prefixes after maximum aggregation: 4499 LACNIC Deaggregation factor: 2.78 Prefixes being announced from the LACNIC address blocks: 12020 Unique aggregates announced from the LACNIC address blocks: 5761 LACNIC Region origin ASes present in the Internet Routing Table: 2246 LACNIC Prefixes per ASN: 5.35 LACNIC Region origin ASes announcing only one prefix: 947 LACNIC Region transit ASes present in the Internet Routing Table: 490 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: 1878 Number of LACNIC addresses announced to Internet: 18219776 Equivalent to 1 /8s, 22 /16s and 3 /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: 1615 Total AfriNIC prefixes after maximum aggregation: 387 AfriNIC Deaggregation factor: 4.17 Prefixes being announced from the AfriNIC address blocks: 3465 Unique aggregates announced from the AfriNIC address blocks: 1667 AfriNIC Region origin ASes present in the Internet Routing Table: 102 AfriNIC Prefixes per ASN: 33.97 AfriNIC Region origin ASes announcing only one prefix: 40 AfriNIC Region transit ASes present in the Internet Routing Table: 33 Average AfriNIC Region AS path length visible: 7.4 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 50 Number of AfriNIC addresses announced to Internet: 6019840 Equivalent to 0 /8s, 91 /16s and 219 /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 10879 8756 98 CHINAMOBILE-CN China Mobile Communication 9498 4241 500 296 BBIL-AP BHARTI Airtel Ltd., IN 24560 2878 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 56046 2057 812 180 CMNET-JIANGSU-AP China Mobile communicati 4766 1982 6032 921 KIXS-AS-KR Korea Telecom, KR 45609 1853 826 324 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1635 728 86 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1484 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 2422 335 648 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2274 3696 1305 AMAZON-02, US 20115 2243 3096 513 CHARTER-20115, US 11492 1942 135 1048 CABLEONE, US 714 1243 4391 8 APPLE-ENGINEERING, US 8075 761 16021 643 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 638 1880 300 TWC-10796-MIDWEST, US 12083 581 192 88 WOW-INTERNET, US 2152 402 45 268 CENIC-2152, US 33363 388 1424 215 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 2348 1992 781 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 888 623 324 SAUDINETSTC-AS, SA 49505 859 92 355 SELECTEL, RU 9123 649 41 292 TIMEWEB-AS, RU 50010 618 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 487 191 179 KAZTELECOM-AS, KZ 9155 428 37 9 QNET Kuwait, KW 21299 424 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 42772 374 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 2107 693 281 UNINET, MX 7738 510 1527 64 V tal, BR 8167 342 1089 44 V tal, BR 1916 241 177 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 126 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 374 318 69 TENET-1, ZA 30999 74 25 32 EMTEL-AS-AP, MU 15399 71 6 26 WANANCHI-, KE 23889 55 37 31 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37473 44 4 2 TELESOM, SO 10798 38 2 30 SBICSA, ZA 37215 36 8 1 MAREN, MW 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 10879 8756 98 CHINAMOBILE-CN China Mobile Communication 9498 4241 500 296 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 24560 2878 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2422 335 648 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2348 1992 781 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2274 3696 1305 AMAZON-02, US 20115 2243 3096 513 CHARTER-20115, US 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 8151 2107 693 281 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 4180 4127 ALJAWWALSTC-AS, SA 9498 4241 3945 BBIL-AP BHARTI Airtel Ltd., IN 24560 2878 2350 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 56046 2057 1877 CMNET-JIANGSU-AP China Mobile communications co 8151 2107 1826 UNINET, MX 30036 2422 1774 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2243 1730 CHARTER-20115, US 7552 2151 1694 VIETEL-AS-AP Viettel Group, VN 12389 2348 1567 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 56041 1635 1549 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 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 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 /15:396 /16:2461 /17:1298 /18:2750 /19:4443 /20:7649 /21:9651 /22:17455 /23:16771 /24:97237 /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 4180 ALJAWWALSTC-AS, SA 30036 2105 2422 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1439 2348 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1334 1942 CABLEONE, US 8151 1147 2107 UNINET, MX 49505 596 859 SELECTEL, RU 20115 550 2243 CHARTER-20115, US 36914 528 552 KENET-AS, KE 9123 527 649 TIMEWEB-AS, RU 50010 516 618 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) ---------------------------------------------- 1:160 2:323 3:105 5:1112 8:80 12:71 13:93 14:399 15:58 16:63 17:326 18:74 20:28 23:732 24:595 25:2 27:605 31:553 32:2 34:3 35:52 36:1967 37:641 38:539 39:695 40:1 41:249 42:118 43:668 44:21 45:2328 46:789 47:64 49:207 50:326 51:136 52:259 54:62 57:28 58:263 59:460 60:95 61:788 62:562 63:130 64:362 65:164 66:315 67:293 68:74 69:261 70:46 71:82 72:241 74:216 75:68 76:61 77:495 78:454 79:243 80:227 81:343 82:377 83:188 84:192 85:404 86:135 87:320 88:105 89:482 90:135 91:1384 92:459 93:958 94:779 95:1478 96:269 97:145 98:71 99:47 101:496 102:115 103:7868 104:382 105:9 106:292 107:108 108:175 109:453 110:224 111:2103 112:1004 113:300 114:841 115:373 116:425 117:1373 118:362 119:241 120:1342 121:422 122:1728 123:392 124:329 125:1594 126:5 128:380 129:61 130:125 131:202 132:51 133:302 134:165 135:22 136:78 137:167 138:327 139:127 140:326 141:150 142:83 143:168 144:132 145:148 146:332 147:221 148:349 149:192 150:219 151:533 152:455 153:38 154:891 155:202 156:480 157:259 158:131 159:382 160:625 161:150 162:274 163:327 164:167 165:229 166:42 167:170 168:587 169:74 170:463 171:194 172:235 173:987 174:124 175:561 176:718 177:473 178:717 179:178 180:452 181:157 182:1639 183:1135 184:137 185:2332 186:214 187:543 188:603 189:311 190:478 191:99 192:1867 193:1122 194:903 195:797 196:314 197:375 198:768 199:525 200:796 201:535 202:2434 203:2192 204:286 205:268 206:316 207:322 208:245 209:316 210:1481 211:1154 212:772 213:530 216:356 217:556 218:814 219:62 220:564 221:428 222:132 223:1253 End of report