IPv4 R&E Routing Table Report 20:15 GMT Mon 27 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: 278230 Prefixes after maximum aggregation (per Origin AS): 118023 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 142314 Number of IPv4 prefixes with a valid ROA: 129754 Number of IPv4 prefixes with an invalid ROA: 198 Number of IPv4 prefixes with no ROA: 148278 Total ASes present in the Internet Routing Table: 20179 Prefixes per ASN: 13.79 Origin-only ASes present in the Internet Routing Table: 17398 Origin ASes announcing only one prefix: 7827 Transit ASes present in the Internet Routing Table: 2781 Transit-only ASes present in the Internet Routing Table: 711 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: 8000 Prefixes from 32-bit ASNs in the Routing Table: 32676 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: 91 Number of addresses announced to Internet: 1616689309 Equivalent to 96 /8s, 92 /16s and 184 /24s Percentage of available address space announced: 43.7 Percentage of allocated address space announced: 43.7 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: 87098 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38611 Total APNIC prefixes after maximum aggregation: 8164 APNIC Deaggregation factor: 4.73 Prefixes being announced from the APNIC address blocks: 37336 Unique aggregates announced from the APNIC address blocks: 8054 APNIC Region origin ASes present in the Internet Routing Table: 1144 APNIC Prefixes per ASN: 32.64 APNIC Region origin ASes announcing only one prefix: 444 APNIC Region transit ASes present in the Internet Routing Table: 188 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 529 Number of APNIC addresses announced to Internet: 163613540 Equivalent to 9 /8s, 192 /16s and 139 /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: 127473 Total ARIN prefixes after maximum aggregation: 65729 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 125243 Unique aggregates announced from the ARIN address blocks: 68881 ARIN Region origin ASes present in the Internet Routing Table: 9155 ARIN Prefixes per ASN: 13.68 ARIN Region origin ASes announcing only one prefix: 3816 ARIN Region transit ASes present in the Internet Routing Table: 845 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: 2177 Number of ARIN addresses announced to Internet: 1020247785 Equivalent to 60 /8s, 207 /16s and 190 /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: 45054 Total RIPE prefixes after maximum aggregation: 25145 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 47413 Unique aggregates announced from the RIPE address blocks: 35818 RIPE Region origin ASes present in the Internet Routing Table: 4413 RIPE Prefixes per ASN: 10.74 RIPE Region origin ASes announcing only one prefix: 1901 RIPE Region transit ASes present in the Internet Routing Table: 699 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: 279296592 Equivalent to 16 /8s, 165 /16s and 186 /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: 56284 Total LACNIC prefixes after maximum aggregation: 16323 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 54246 Unique aggregates announced from the LACNIC address blocks: 23897 LACNIC Region origin ASes present in the Internet Routing Table: 4346 LACNIC Prefixes per ASN: 12.48 LACNIC Region origin ASes announcing only one prefix: 1559 LACNIC Region transit ASes present in the Internet Routing Table: 849 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: 3312 Number of LACNIC addresses announced to Internet: 108084736 Equivalent to 6 /8s, 113 /16s and 62 /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: 10526 Total AfriNIC prefixes after maximum aggregation: 2431 AfriNIC Deaggregation factor: 4.33 Prefixes being announced from the AfriNIC address blocks: 13901 Unique aggregates announced from the AfriNIC address blocks: 5574 AfriNIC Region origin ASes present in the Internet Routing Table: 286 AfriNIC Prefixes per ASN: 48.60 AfriNIC Region origin ASes announcing only one prefix: 107 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: 162 Number of AfriNIC addresses announced to Internet: 45341696 Equivalent to 2 /8s, 179 /16s and 220 /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 3172 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1728 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1715 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 14387 41101 5372 AMAZON-02, US 22773 4289 3069 371 ASN-CXA-ALL-CCI-22773-RDC, US 749 3217 54766 2468 DNIC-AS-00749, US 4155 3133 243 1748 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 1864 2118 871 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1445 701 724 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 1219 95 999 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 561 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 7297 1966 781 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 1266 278 34 Techtel LMDS Comunicaciones Interactivas 26615 1024 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 52468 650 41 193 UFINET PANAMA S.A., PA 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 1406 456 90 RAYA-AS, EG 24863 1024 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 572 82 3 KENET-AS, KE 36935 485 515 10 Vodafone-, EG 29571 480 98 67 ORANGE-COTE-IVOIRE, CI 36903 470 211 336 MT-MPLS, MA 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 14387 41101 5372 AMAZON-02, US 9808 13113 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7297 1966 781 UNINET, MX 22773 4289 3069 371 ASN-CXA-ALL-CCI-22773-RDC, US 749 3217 54766 2468 DNIC-AS-00749, US 56046 3172 827 193 CMNET-JIANGSU-AP China Mobile communicati 4155 3133 243 1748 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 7297 6516 UNINET, MX 22773 4289 3918 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3172 2979 CMNET-JIANGSU-AP China Mobile communications co 11830 1990 1926 Instituto Costarricense de Electricidad y Telec 11776 1909 1693 ATLANTICBB-JOHNSTOWN, US 56047 1715 1665 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 /12:158 /13:214 /14:584 /15:1095 /16:7544 /17:3431 /18:4078 /19:7615 /20:12565 /21:15862 /22:28389 /23:28666 /24:167684 /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 3964 7297 UNINET, MX 22773 2643 4289 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2425 14387 AMAZON-02, US 11830 1694 1990 Instituto Costarricense de Electricidad y Telecom., CR 19901 1058 1445 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 940 1266 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 2:287 3:959 4:5 5:608 6:158 7:5 8:612 9:5 11:171 12:880 13:476 14:171 15:344 16:278 17:3 18:901 20:199 21:4 22:189 23:2693 24:596 27:56 29:19 31:455 32:13 34:10 35:187 36:3217 37:521 38:2577 39:738 40:91 41:1004 42:146 43:200 44:29 45:4202 46:918 47:147 49:21 50:476 51:387 52:1459 54:357 55:1101 56:11 57:32 58:17 59:33 60:91 61:61 62:526 63:742 64:1957 65:1033 66:1990 67:1031 68:503 69:1208 70:449 71:170 72:738 74:991 75:307 76:232 77:391 78:297 79:263 80:320 81:390 82:745 83:204 84:338 85:594 86:243 87:177 88:283 89:677 90:105 91:913 92:661 93:423 94:862 95:416 96:263 97:49 98:404 99:244 100:22 101:18 102:416 103:1046 104:1574 105:202 106:67 107:1693 108:529 109:343 110:92 111:2482 112:1113 113:32 114:39 115:64 116:51 117:1438 118:82 119:71 120:1665 121:31 122:61 123:176 124:86 125:24 128:551 129:377 130:666 131:1065 132:579 133:221 134:503 135:121 136:670 137:489 138:996 139:434 140:734 141:364 142:1213 143:878 144:420 145:146 146:653 147:477 148:971 149:723 150:210 151:787 152:696 153:177 154:1240 155:953 156:1156 157:445 158:596 159:750 160:609 161:703 162:996 163:367 164:764 165:615 166:799 167:680 168:1486 169:155 170:1862 171:101 172:1314 173:794 174:289 175:106 176:411 177:894 178:639 179:898 180:35 181:2414 182:29 183:1490 184:437 185:3105 186:3256 187:1653 188:758 189:1868 190:6258 191:532 192:5064 193:1716 194:1090 195:949 196:706 197:1107 198:2696 199:5240 200:4407 201:3701 202:992 203:775 204:2146 205:1784 206:1502 207:1728 208:1544 209:1930 210:346 211:503 212:964 213:719 214:958 215:40 216:2526 217:466 218:657 219:18 220:87 221:480 222:24 223:1533 End of report