IPv4 R&E Routing Table Report 20:15 GMT Sun 26 Oct, 2025 IPv4 BGP Table (R&E) as seen at KREONet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/ Analysis Summary ---------------- BGP routing table entries examined: 278104 Prefixes after maximum aggregation (per Origin AS): 117984 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 142326 Number of IPv4 prefixes with a valid ROA: 129633 Number of IPv4 prefixes with an invalid ROA: 199 Number of IPv4 prefixes with no ROA: 148272 Total ASes present in the Internet Routing Table: 20167 Prefixes per ASN: 13.79 Origin-only ASes present in the Internet Routing Table: 17395 Origin ASes announcing only one prefix: 7823 Transit ASes present in the Internet Routing Table: 2772 Transit-only ASes present in the Internet Routing Table: 706 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 282 Number of instances of unregistered ASNs: 311 Number of 32-bit ASNs allocated by the RIRs: 47816 Number of 32-bit ASNs visible in the Routing Table: 8007 Prefixes from 32-bit ASNs in the Routing Table: 32695 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 93 Number of addresses announced to Internet: 1628248989 Equivalent to 97 /8s, 13 /16s and 27 /24s Percentage of available address space announced: 44.0 Percentage of allocated address space announced: 44.0 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: 86800 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38993 Total APNIC prefixes after maximum aggregation: 8295 APNIC Deaggregation factor: 4.70 Prefixes being announced from the APNIC address blocks: 37667 Unique aggregates announced from the APNIC address blocks: 8331 APNIC Region origin ASes present in the Internet Routing Table: 1138 APNIC Prefixes per ASN: 33.10 APNIC Region origin ASes announcing only one prefix: 441 APNIC Region transit ASes present in the Internet Routing Table: 186 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 528 Number of APNIC addresses announced to Internet: 175045732 Equivalent to 10 /8s, 110 /16s and 252 /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: 127422 Total ARIN prefixes after maximum aggregation: 65692 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 125161 Unique aggregates announced from the ARIN address blocks: 68827 ARIN Region origin ASes present in the Internet Routing Table: 9147 ARIN Prefixes per ASN: 13.68 ARIN Region origin ASes announcing only one prefix: 3813 ARIN Region transit ASes present in the Internet Routing Table: 844 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2173 Number of ARIN addresses announced to Internet: 1020333801 Equivalent to 60 /8s, 209 /16s and 14 /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: 44927 Total RIPE prefixes after maximum aggregation: 25038 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 47307 Unique aggregates announced from the RIPE address blocks: 35702 RIPE Region origin ASes present in the Internet Routing Table: 4409 RIPE Prefixes per ASN: 10.73 RIPE Region origin ASes announcing only one prefix: 1897 RIPE Region transit ASes present in the Internet Routing Table: 696 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1820 Number of RIPE addresses announced to Internet: 279265872 Equivalent to 16 /8s, 165 /16s and 66 /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: 56064 Total LACNIC prefixes after maximum aggregation: 16283 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54064 Unique aggregates announced from the LACNIC address blocks: 23802 LACNIC Region origin ASes present in the Internet Routing Table: 4353 LACNIC Prefixes per ASN: 12.42 LACNIC Region origin ASes announcing only one prefix: 1563 LACNIC Region transit ASes present in the Internet Routing Table: 845 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 26 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3322 Number of LACNIC addresses announced to Internet: 107955456 Equivalent to 6 /8s, 111 /16s and 69 /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: 10416 Total AfriNIC prefixes after maximum aggregation: 2445 AfriNIC Deaggregation factor: 4.26 Prefixes being announced from the AfriNIC address blocks: 13812 Unique aggregates announced from the AfriNIC address blocks: 5572 AfriNIC Region origin ASes present in the Internet Routing Table: 290 AfriNIC Prefixes per ASN: 47.63 AfriNIC Region origin ASes announcing only one prefix: 109 AfriNIC Region transit ASes present in the Internet Routing Table: 73 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 164 Number of AfriNIC addresses announced to Internet: 45543424 Equivalent to 2 /8s, 182 /16s and 240 /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 13113 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3173 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1728 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1716 192 50 CMNET-HUNAN-AP China Mobile communication 24444 940 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 870 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 679 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 56045 654 235 367 CMNET-JIANGXI-AP China Mobile communicati 2907 611 2169 463 SINET-AS Research Organization of Informa 132525 591 99 30 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14388 41104 5382 AMAZON-02, US 22773 4273 3068 370 ASN-CXA-ALL-CCI-22773-RDC, US 749 3218 54766 2469 DNIC-AS-00749, US 4155 3128 242 1747 USDA-1, US 36352 2573 210 1165 AS-COLOCROSSING, US 6167 1959 4064 504 CELLCO-PART, US 11776 1909 259 216 ATLANTICBB-JOHNSTOWN, US 367 1859 2117 867 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1449 702 722 BRIGHTSPEED, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 20940 1210 94 992 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 8452 876 1841 16 TE-AS TE-AS, EG 39891 874 55 22 ALJAWWALSTC-AS, SA 212238 642 45 564 CDNEXT, GB 34984 580 89 460 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 560 53 25 Jordan Data Communications, JO 5511 528 129 445 OPENTRANSIT, FR 35819 503 499 102 MOBILY-AS Etihad Etisalat Company Mobily, Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 7296 1968 782 UNINET, MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 10620 1671 236 1207 Telmex Colombia S.A., CO 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1279 371 23 Telefonica del Peru S.A.A., PE 11664 1265 278 34 Techtel LMDS Comunicaciones Interactivas 26615 1022 2486 56 TIM SA, BR 18881 900 1127 31 TELEFONICA BRASIL S.A, BR 12252 689 164 24 America Movil Peru S.A.C., PE 27651 646 92 49 ENTEL CHILE S.A., CL Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1362 454 94 RAYA-AS, EG 24863 1023 389 22 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36992 608 1094 302 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 571 82 3 KENET-AS, KE 29571 480 98 67 ORANGE-COTE-IVOIRE, CI 36903 470 211 336 MT-MPLS, MA 36935 437 515 10 Vodafone-, EG 2018 375 318 69 TENET-1, ZA Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14388 41104 5382 AMAZON-02, US 9808 13113 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7296 1968 782 UNINET, MX 22773 4273 3068 370 ASN-CXA-ALL-CCI-22773-RDC, US 749 3218 54766 2469 DNIC-AS-00749, US 56046 3173 827 193 CMNET-JIANGSU-AP China Mobile communicati 4155 3128 242 1747 USDA-1, US 36352 2573 210 1165 AS-COLOCROSSING, US 11830 1990 369 64 Instituto Costarricense de Electricidad y 6167 1959 4064 504 CELLCO-PART, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13113 12994 CHINAMOBILE-CN China Mobile Communications Grou 8151 7296 6514 UNINET, MX 22773 4273 3903 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3173 2980 CMNET-JIANGSU-AP China Mobile communications co 11830 1990 1926 Instituto Costarricense de Electricidad y Telec 11776 1909 1693 ATLANTICBB-JOHNSTOWN, US 56047 1716 1666 CMNET-HUNAN-AP China Mobile communications corp 56041 1728 1650 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1959 1455 CELLCO-PART, US 36352 2573 1408 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.106.212.0/24 7018 ATT-INTERNET4, US 26295 UNALLOCATED 12.110.210.0/23 7018 ATT-INTERNET4, US 12114 UNALLOCATED 12.129.100.0/24 7018 ATT-INTERNET4, US 22538 UNALLOCATED 12.131.3.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.178.24.0/24 Origin: 53850 GORILLASERVERS, US 23.178.24.0/24 Transit: 3257 GTT-BACKBONE GTT, US 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 328766 RESERVED, ZZ Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:14 /9:11 /10:31 /11:51 /12:161 /13:214 /14:586 /15:1097 /16:7679 /17:3437 /18:4142 /19:7635 /20:12566 /21:15836 /22:28307 /23:28644 /24:167455 /25:64 /26:81 /27:49 /28:18 /29:7 /30:13 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3963 7296 UNINET, MX 22773 2643 4273 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2426 14388 AMAZON-02, US 11830 1694 1990 Instituto Costarricense de Electricidad y Telecom., CR 19901 1061 1449 BRIGHTSPEED, US 36352 1038 2573 AS-COLOCROSSING, US 10620 1001 1671 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11664 939 1265 Techtel LMDS Comunicaciones Interactivas S.A., AR 11776 885 1909 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:32 2:274 3:955 4:5 5:613 6:158 7:5 8:614 9:5 11:171 12:880 13:485 14:172 15:344 16:278 17:3 18:900 20:198 21:4 22:189 23:2745 24:597 27:56 29:19 31:453 32:13 34:11 35:187 36:3218 37:523 38:2562 39:738 40:91 41:1004 42:145 43:202 44:27 45:4184 46:907 47:146 49:19 50:475 51:390 52:1458 54:357 55:1104 56:11 57:32 58:17 59:33 60:91 61:59 62:525 63:740 64:1950 65:1035 66:1987 67:1032 68:503 69:1192 70:444 71:170 72:741 74:986 75:309 76:232 77:389 78:295 79:263 80:318 81:389 82:762 83:203 84:339 85:590 86:243 87:176 88:283 89:674 90:105 91:908 92:659 93:414 94:863 95:416 96:260 97:49 98:406 99:244 100:22 101:19 102:431 103:1062 104:1574 105:174 106:67 107:1691 108:523 109:342 110:91 111:2512 112:1112 113:32 114:39 115:64 116:55 117:1438 118:85 119:72 120:1666 121:30 122:61 123:179 124:85 125:27 128:548 129:376 130:665 131:1068 132:576 133:221 134:502 135:121 136:668 137:491 138:989 139:434 140:736 141:364 142:1210 143:886 144:417 145:143 146:651 147:473 148:969 149:724 150:209 151:783 152:697 153:177 154:1188 155:945 156:1238 157:445 158:592 159:749 160:607 161:702 162:1002 163:366 164:763 165:623 166:801 167:681 168:1488 169:156 170:1864 171:101 172:1294 173:787 174:288 175:108 176:412 177:883 178:639 179:904 180:35 181:2408 182:32 183:1491 184:437 185:3080 186:3240 187:1643 188:755 189:1867 190:6175 191:536 192:5056 193:1709 194:1089 195:947 196:683 197:1107 198:2703 199:5213 200:4395 201:3694 202:994 203:774 204:2143 205:1794 206:1502 207:1734 208:1544 209:1926 210:345 211:507 212:965 213:710 214:953 215:40 216:2503 217:474 218:657 219:18 220:87 221:503 222:24 223:1533 End of report