IPv4 R&E Routing Table Report 20:30 GMT Thu 29 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: 159102 Prefixes after maximum aggregation (per Origin AS): 62746 Deaggregation factor: 2.54 Unique aggregates announced (without unneeded subnets): 89277 Number of IPv4 prefixes with a valid ROA: 87747 Number of IPv4 prefixes with an invalid ROA: 80 Number of IPv4 prefixes with no ROA: 71275 Total ASes present in the Internet Routing Table: 14510 Prefixes per ASN: 10.96 Origin-only ASes present in the Internet Routing Table: 12253 Origin ASes announcing only one prefix: 5933 Transit ASes present in the Internet Routing Table: 2257 Transit-only ASes present in the Internet Routing Table: 498 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: 46539 Number of 32-bit ASNs visible in the Routing Table: 7201 Prefixes from 32-bit ASNs in the Routing Table: 29523 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: 503815680 Equivalent to 30 /8s, 7 /16s and 158 /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: 38619 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 79004 Total APNIC prefixes after maximum aggregation: 25029 APNIC Deaggregation factor: 3.16 Prefixes being announced from the APNIC address blocks: 77350 Unique aggregates announced from the APNIC address blocks: 36652 APNIC Region origin ASes present in the Internet Routing Table: 5003 APNIC Prefixes per ASN: 15.46 APNIC Region origin ASes announcing only one prefix: 1844 APNIC Region transit ASes present in the Internet Routing Table: 745 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: 3217 Number of APNIC addresses announced to Internet: 188423680 Equivalent to 11 /8s, 59 /16s and 30 /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: 26636 Total ARIN prefixes after maximum aggregation: 14490 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26104 Unique aggregates announced from the ARIN address blocks: 20173 ARIN Region origin ASes present in the Internet Routing Table: 2086 ARIN Prefixes per ASN: 12.51 ARIN Region origin ASes announcing only one prefix: 992 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: 459 Number of ARIN addresses announced to Internet: 166404096 Equivalent to 9 /8s, 235 /16s and 32 /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: 39453 Total RIPE prefixes after maximum aggregation: 18437 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 40316 Unique aggregates announced from the RIPE address blocks: 25158 RIPE Region origin ASes present in the Internet Routing Table: 4590 RIPE Prefixes per ASN: 8.78 RIPE Region origin ASes announcing only one prefix: 2135 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: 1614 Number of RIPE addresses announced to Internet: 125362176 Equivalent to 7 /8s, 120 /16s and 224 /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: 12405 Total LACNIC prefixes after maximum aggregation: 4367 LACNIC Deaggregation factor: 2.84 Prefixes being announced from the LACNIC address blocks: 11890 Unique aggregates announced from the LACNIC address blocks: 5642 LACNIC Region origin ASes present in the Internet Routing Table: 2212 LACNIC Prefixes per ASN: 5.38 LACNIC Region origin ASes announcing only one prefix: 918 LACNIC Region transit ASes present in the Internet Routing Table: 494 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: 1861 Number of LACNIC addresses announced to Internet: 17993472 Equivalent to 1 /8s, 18 /16s and 143 /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: 1534 Total AfriNIC prefixes after maximum aggregation: 373 AfriNIC Deaggregation factor: 4.11 Prefixes being announced from the AfriNIC address blocks: 3400 Unique aggregates announced from the AfriNIC address blocks: 1619 AfriNIC Region origin ASes present in the Internet Routing Table: 101 AfriNIC Prefixes per ASN: 33.66 AfriNIC Region origin ASes announcing only one prefix: 44 AfriNIC Region transit ASes present in the Internet Routing Table: 32 Average AfriNIC Region AS path length visible: 7.1 Max AfriNIC Region AS path length visible: 44 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 50 Number of AfriNIC addresses announced to Internet: 5605888 Equivalent to 0 /8s, 85 /16s and 138 /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 10888 8756 98 CHINAMOBILE-CN China Mobile Communication 9498 4227 500 292 BBIL-AP BHARTI Airtel Ltd., IN 24560 2875 853 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 4766 1979 6032 921 KIXS-AS-KR Korea Telecom, KR 56046 1931 812 180 CMNET-JIANGSU-AP China Mobile communicati 45609 1853 826 324 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1683 731 96 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication 9919 969 170 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 2420 335 660 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2260 3647 1298 AMAZON-02, US 20115 2236 3096 513 CHARTER-20115, US 11492 1934 134 1045 CABLEONE, US 714 1240 4391 8 APPLE-ENGINEERING, US 8075 759 16021 641 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 638 1880 300 TWC-10796-MIDWEST, US 12083 581 192 88 WOW-INTERNET, US 2152 404 46 270 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 4180 255 53 ALJAWWALSTC-AS, SA 12389 2312 1992 782 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 889 623 324 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 486 190 178 KAZTELECOM-AS, KZ 9155 429 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 2035 688 272 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 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 20 5 5 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 10888 8756 98 CHINAMOBILE-CN China Mobile Communication 9498 4227 500 292 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 24560 2875 853 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2420 335 660 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2312 1992 782 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2260 3647 1298 AMAZON-02, US 20115 2236 3096 513 CHARTER-20115, US 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 8151 2035 688 272 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 4227 3935 BBIL-AP BHARTI Airtel Ltd., IN 24560 2875 2346 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 8151 2035 1763 UNINET, MX 30036 2420 1760 MEDIACOM-ENTERPRISE-BUSINESS, US 56046 1931 1751 CMNET-JIANGSU-AP China Mobile communications co 20115 2236 1723 CHARTER-20115, US 7552 2151 1694 VIETEL-AS-AP Viettel Group, VN 56041 1683 1587 CMNET-ZHEJIANG-AP China Mobile communications c 12389 2312 1530 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 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 /14:162 /15:394 /16:2465 /17:1297 /18:2753 /19:4427 /20:7680 /21:9575 /22:17324 /23:16626 /24:96240 /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 2103 2420 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1404 2312 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1326 1934 CABLEONE, US 8151 1114 2035 UNINET, MX 49505 597 861 SELECTEL, RU 20115 552 2236 CHARTER-20115, US 36914 528 552 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 2:319 3:105 5:1097 8:80 12:79 13:90 14:394 15:58 16:63 17:326 18:74 20:28 23:714 24:597 25:2 27:611 31:510 32:2 34:3 35:37 36:1972 37:632 38:527 39:696 40:1 41:251 42:115 43:670 44:21 45:2291 46:765 47:64 49:209 50:318 51:138 52:259 54:62 57:26 58:265 59:458 60:95 61:782 62:539 63:115 64:346 65:281 66:269 67:293 68:74 69:256 70:48 71:83 72:245 74:204 75:64 76:62 77:483 78:459 79:240 80:225 81:341 82:342 83:186 84:185 85:376 86:117 87:312 88:97 89:475 90:135 91:1396 92:446 93:943 94:769 95:1473 96:266 97:146 98:68 99:47 101:484 102:101 103:7960 104:361 105:9 106:293 107:109 108:176 109:452 110:225 111:2114 112:982 113:299 114:835 115:382 116:431 117:1380 118:356 119:217 120:1336 121:425 122:1728 123:393 124:329 125:1587 126:6 128:381 129:64 130:126 131:212 132:54 133:302 134:163 135:22 136:78 137:167 138:331 139:215 140:320 141:180 142:81 143:160 144:127 145:142 146:371 147:221 148:354 149:168 150:220 151:521 152:454 153:37 154:911 155:198 156:475 157:283 158:128 159:357 160:601 161:130 162:241 163:322 164:147 165:228 166:39 167:184 168:589 169:70 170:483 171:192 172:238 173:978 174:124 175:555 176:715 177:498 178:679 179:191 180:460 181:134 182:1630 183:1138 184:133 185:2210 186:210 187:520 188:599 189:311 190:482 191:82 192:1853 193:1097 194:884 195:769 196:302 197:368 198:702 199:491 200:766 201:534 202:2495 203:2134 204:276 205:224 206:299 207:316 208:238 209:273 210:1479 211:1150 212:756 213:515 216:340 217:507 218:810 219:60 220:569 221:411 222:131 223:1210 End of report