IPv4 R&E Routing Table Report 20:15 GMT Mon 22 Sep, 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: 278486 Prefixes after maximum aggregation (per Origin AS): 118258 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 141857 Number of IPv4 prefixes with a valid ROA: 131073 Number of IPv4 prefixes with an invalid ROA: 210 Number of IPv4 prefixes with no ROA: 147203 Total ASes present in the Internet Routing Table: 20280 Prefixes per ASN: 13.73 Origin-only ASes present in the Internet Routing Table: 17488 Origin ASes announcing only one prefix: 7779 Transit ASes present in the Internet Routing Table: 2792 Transit-only ASes present in the Internet Routing Table: 684 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: 343 Number of instances of unregistered ASNs: 372 Number of 32-bit ASNs allocated by the RIRs: 47520 Number of 32-bit ASNs visible in the Routing Table: 8056 Prefixes from 32-bit ASNs in the Routing Table: 33419 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 92 Number of addresses announced to Internet: 1616951781 Equivalent to 96 /8s, 96 /16s and 185 /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: 87803 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38121 Total APNIC prefixes after maximum aggregation: 7899 APNIC Deaggregation factor: 4.83 Prefixes being announced from the APNIC address blocks: 37025 Unique aggregates announced from the APNIC address blocks: 8066 APNIC Region origin ASes present in the Internet Routing Table: 1178 APNIC Prefixes per ASN: 31.43 APNIC Region origin ASes announcing only one prefix: 461 APNIC Region transit ASes present in the Internet Routing Table: 193 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 532 Number of APNIC addresses announced to Internet: 163699564 Equivalent to 9 /8s, 193 /16s and 219 /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: 127226 Total ARIN prefixes after maximum aggregation: 66156 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 124625 Unique aggregates announced from the ARIN address blocks: 68254 ARIN Region origin ASes present in the Internet Routing Table: 9188 ARIN Prefixes per ASN: 13.56 ARIN Region origin ASes announcing only one prefix: 3817 ARIN Region transit ASes present in the Internet Routing Table: 847 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2159 Number of ARIN addresses announced to Internet: 1022397929 Equivalent to 60 /8s, 240 /16s and 141 /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: 45347 Total RIPE prefixes after maximum aggregation: 24992 RIPE Deaggregation factor: 1.81 Prefixes being announced from the RIPE address blocks: 47828 Unique aggregates announced from the RIPE address blocks: 35935 RIPE Region origin ASes present in the Internet Routing Table: 4327 RIPE Prefixes per ASN: 11.05 RIPE Region origin ASes announcing only one prefix: 1816 RIPE Region transit ASes present in the Internet Routing Table: 666 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 22 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1775 Number of RIPE addresses announced to Internet: 274973264 Equivalent to 16 /8s, 99 /16s and 194 /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: 56634 Total LACNIC prefixes after maximum aggregation: 16388 LACNIC Deaggregation factor: 3.46 Prefixes being announced from the LACNIC address blocks: 54697 Unique aggregates announced from the LACNIC address blocks: 24344 LACNIC Region origin ASes present in the Internet Routing Table: 4465 LACNIC Prefixes per ASN: 12.25 LACNIC Region origin ASes announcing only one prefix: 1571 LACNIC Region transit ASes present in the Internet Routing Table: 888 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3424 Number of LACNIC addresses announced to Internet: 108850240 Equivalent to 6 /8s, 124 /16s and 236 /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: 10815 Total AfriNIC prefixes after maximum aggregation: 2565 AfriNIC Deaggregation factor: 4.22 Prefixes being announced from the AfriNIC address blocks: 14219 Unique aggregates announced from the AfriNIC address blocks: 5168 AfriNIC Region origin ASes present in the Internet Routing Table: 301 AfriNIC Prefixes per ASN: 47.24 AfriNIC Region origin ASes announcing only one prefix: 114 AfriNIC Region transit ASes present in the Internet Routing Table: 76 Average AfriNIC Region AS path length visible: 6.8 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 166 Number of AfriNIC addresses announced to Internet: 46922752 Equivalent to 2 /8s, 203 /16s and 252 /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 13310 8729 118 CHINAMOBILE-CN China Mobile Communication 56046 3014 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1728 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1709 192 50 CMNET-HUNAN-AP China Mobile communication 24444 892 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 865 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 629 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 4780 618 272 205 SEEDNET Digital United Inc., TW 2907 610 2169 462 SINET-AS Research Organization of Informa 132525 588 98 29 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 14331 40906 5394 AMAZON-02, US 22773 4613 3087 320 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3040 236 1722 USDA-1, US 36352 2512 206 1172 AS-COLOCROSSING, US 367 2073 2389 988 DNIC-ASBLK-00306-00371, US 6167 1930 3985 515 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 20057 1429 987 110 ATT-MOBILITY-LLC-AS20057, 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 1185 94 972 AKAMAI-ASN1, NL 3215 893 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 802 1841 16 TE-AS TE-AS, EG 212238 708 51 626 CDNEXT, GB 34984 603 102 469 TELLCOM-AS, TR 8376 568 53 25 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 35819 543 541 84 MOBILY-AS Etihad Etisalat Company Mobily, 5511 523 128 439 OPENTRANSIT, FR 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 7047 2024 705 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1659 239 1206 Telmex Colombia S.A., CO 3816 1353 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1186 371 23 Telefonica del Peru S.A.A., PE 26615 1001 2486 56 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 815 278 29 Techtel LMDS Comunicaciones Interactivas 12252 695 164 24 America Movil Peru S.A.C., PE 27651 651 92 45 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 1202 572 23 RAYA-AS, EG 24863 994 389 23 LINKdotNET-AS, EG 37069 977 1096 13 MOBINIL, EG 36935 648 521 41 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 576 82 3 KENET-AS, KE 36992 564 1069 299 ETISALAT-MISR, EG 36903 487 220 344 MT-MPLS, MA 29571 477 98 68 ORANGE-COTE-IVOIRE, CI 2018 376 318 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 14331 40906 5394 AMAZON-02, US 9808 13310 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7047 2024 705 UNINET, MX 22773 4613 3087 320 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3040 236 1722 USDA-1, US 56046 3014 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2512 206 1172 AS-COLOCROSSING, US 367 2073 2389 988 DNIC-ASBLK-00306-00371, US 11830 1989 369 64 Instituto Costarricense de Electricidad y 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 13310 13192 CHINAMOBILE-CN China Mobile Communications Grou 8151 7047 6342 UNINET, MX 22773 4613 4293 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3014 2821 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1709 1659 CMNET-HUNAN-AP China Mobile communications corp 56041 1728 1650 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1930 1415 CELLCO-PART, US 209 1649 1381 CENTURYLINK-US-LEGACY-QWEST, 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 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 396146 UNALLOCATED 8.44.213.0/24 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 Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 23.174.40.0/24 Origin: 27317 RESERVED, ZZ 23.174.40.0/24 Transit: 21738 ROZINT, US 41.67.248.0/22 Origin: 15964 CAMNET-AS, CM 41.67.248.0/22 Transit: 37662 WIOCC-AS, MU 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 /10:30 /11:51 /12:156 /13:214 /14:585 /15:1109 /16:7581 /17:3428 /18:4143 /19:7668 /20:12704 /21:15683 /22:28164 /23:29074 /24:167630 /25:66 /26:82 /27:49 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3825 7047 UNINET, MX 22773 3018 4613 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2450 14331 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1038 1400 BRIGHTSPEED, US 36352 995 2512 AS-COLOCROSSING, US 10620 970 1659 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1902 ATLANTICBB-JOHNSTOWN, US 6167 846 1930 CELLCO-PART, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:27 2:279 3:931 4:5 5:592 6:152 7:5 8:631 9:5 11:171 12:890 13:503 14:170 15:342 16:265 17:3 18:896 20:194 21:4 22:188 23:2629 24:681 27:55 29:19 31:491 32:12 34:11 35:180 36:3137 37:718 38:2444 39:717 40:93 41:1079 42:21 43:202 44:26 45:4269 46:973 47:117 49:21 50:471 51:387 52:1470 54:358 55:1096 56:11 57:29 58:18 59:37 60:146 61:92 62:538 63:766 64:1811 65:1073 66:1832 67:1163 68:374 69:1198 70:451 71:179 72:699 74:971 75:307 76:245 77:429 78:318 79:234 80:325 81:367 82:740 83:199 84:331 85:551 86:247 87:175 88:302 89:701 90:106 91:912 92:656 93:420 94:916 95:423 96:258 97:50 98:481 99:254 100:28 101:23 102:422 103:1074 104:1652 105:190 106:71 107:1672 108:527 109:377 110:102 111:2389 112:1004 113:33 114:45 115:63 116:53 117:1357 118:74 119:71 120:1574 121:33 122:94 123:185 124:177 125:24 126:1 128:553 129:399 130:634 131:1056 132:585 133:220 134:475 135:121 136:682 137:497 138:1005 139:463 140:729 141:371 142:983 143:876 144:405 145:163 146:662 147:518 148:1024 149:643 150:201 151:854 152:533 153:173 154:1151 155:967 156:1243 157:435 158:614 159:735 160:607 161:687 162:1011 163:438 164:755 165:640 166:810 167:694 168:1508 169:159 170:1866 171:103 172:1308 173:813 174:364 175:129 176:433 177:961 178:625 179:922 180:38 181:2352 182:28 183:1385 184:452 185:3187 186:3131 187:1785 188:770 189:1788 190:6339 191:582 192:5088 193:1713 194:1041 195:916 196:761 197:1165 198:2712 199:5202 200:4424 201:3576 202:1006 203:791 204:2166 205:1807 206:1589 207:1577 208:1565 209:1960 210:510 211:503 212:935 213:696 214:954 215:40 216:2499 217:474 218:701 219:18 220:127 221:471 222:26 223:1397 End of report