IPv4 R&E Routing Table Report 20:15 GMT Sun 31 Aug, 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: 281309 Prefixes after maximum aggregation (per Origin AS): 120622 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143555 Number of IPv4 prefixes with a valid ROA: 132595 Number of IPv4 prefixes with an invalid ROA: 43 Number of IPv4 prefixes with no ROA: 148671 Total ASes present in the Internet Routing Table: 20852 Prefixes per ASN: 13.49 Origin-only ASes present in the Internet Routing Table: 17935 Origin ASes announcing only one prefix: 7962 Transit ASes present in the Internet Routing Table: 2917 Transit-only ASes present in the Internet Routing Table: 725 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: 345 Number of instances of unregistered ASNs: 374 Number of 32-bit ASNs allocated by the RIRs: 47304 Number of 32-bit ASNs visible in the Routing Table: 8377 Prefixes from 32-bit ASNs in the Routing Table: 34671 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: 102 Number of addresses announced to Internet: 1629432837 Equivalent to 97 /8s, 31 /16s and 44 /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: 89769 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35974 Total APNIC prefixes after maximum aggregation: 7409 APNIC Deaggregation factor: 4.86 Prefixes being announced from the APNIC address blocks: 34954 Unique aggregates announced from the APNIC address blocks: 7456 APNIC Region origin ASes present in the Internet Routing Table: 1190 APNIC Prefixes per ASN: 29.37 APNIC Region origin ASes announcing only one prefix: 467 APNIC Region transit ASes present in the Internet Routing Table: 188 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: 558 Number of APNIC addresses announced to Internet: 163380588 Equivalent to 9 /8s, 188 /16s and 253 /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: 126923 Total ARIN prefixes after maximum aggregation: 66657 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125357 Unique aggregates announced from the ARIN address blocks: 68604 ARIN Region origin ASes present in the Internet Routing Table: 9226 ARIN Prefixes per ASN: 13.59 ARIN Region origin ASes announcing only one prefix: 3830 ARIN Region transit ASes present in the Internet Routing Table: 864 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2172 Number of ARIN addresses announced to Internet: 1023836681 Equivalent to 61 /8s, 6 /16s and 130 /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: 49791 Total RIPE prefixes after maximum aggregation: 27061 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 51916 Unique aggregates announced from the RIPE address blocks: 38088 RIPE Region origin ASes present in the Internet Routing Table: 4719 RIPE Prefixes per ASN: 11.00 RIPE Region origin ASes announcing only one prefix: 1982 RIPE Region transit ASes present in the Internet Routing Table: 719 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 28 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1982 Number of RIPE addresses announced to Internet: 284411728 Equivalent to 16 /8s, 243 /16s and 199 /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: 57200 Total LACNIC prefixes after maximum aggregation: 16827 LACNIC Deaggregation factor: 3.40 Prefixes being announced from the LACNIC address blocks: 55336 Unique aggregates announced from the LACNIC address blocks: 25119 LACNIC Region origin ASes present in the Internet Routing Table: 4560 LACNIC Prefixes per ASN: 12.14 LACNIC Region origin ASes announcing only one prefix: 1589 LACNIC Region transit ASes present in the Internet Routing Table: 930 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3512 Number of LACNIC addresses announced to Internet: 108791360 Equivalent to 6 /8s, 124 /16s and 6 /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: 11076 Total AfriNIC prefixes after maximum aggregation: 2407 AfriNIC Deaggregation factor: 4.60 Prefixes being announced from the AfriNIC address blocks: 13644 Unique aggregates announced from the AfriNIC address blocks: 4191 AfriNIC Region origin ASes present in the Internet Routing Table: 294 AfriNIC Prefixes per ASN: 46.41 AfriNIC Region origin ASes announcing only one prefix: 94 AfriNIC Region transit ASes present in the Internet Routing Table: 84 Average AfriNIC Region AS path length visible: 6.7 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 153 Number of AfriNIC addresses announced to Internet: 48899072 Equivalent to 2 /8s, 234 /16s and 36 /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 12724 8729 114 CHINAMOBILE-CN China Mobile Communication 56046 2915 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1689 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1673 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 859 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 828 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 608 2169 462 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 540 894 138 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 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 14092 40855 5388 AMAZON-02, US 22773 3347 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2956 230 1738 USDA-1, US 36352 2525 207 1168 AS-COLOCROSSING, US 367 2358 2669 1100 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 7018 1456 22775 1099 ATT-INTERNET4, 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 39891 1936 130 50 ALJAWWALSTC-AS, SA 20940 1194 93 976 AKAMAI-ASN1, NL 3215 923 4895 286 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 212238 682 50 608 CDNEXT, GB 34984 643 95 500 TELLCOM-AS, TR 8376 595 53 26 Jordan Data Communications, JO 8452 574 1841 16 TE-AS TE-AS, EG 51167 567 113 248 CONTABO, DE 35819 544 540 58 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 7368 2017 779 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1657 239 1204 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1177 371 22 Telefonica del Peru S.A.A., PE 26615 1011 2487 55 TIM SA, BR 18881 893 1127 31 TELEFONICA BRASIL S.A, BR 11664 791 278 29 Techtel LMDS Comunicaciones Interactivas 22884 691 43 421 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 1293 572 23 RAYA-AS, EG 29571 1151 93 59 ORANGE-COTE-IVOIRE, CI 24863 972 389 23 LINKdotNET-AS, EG 37069 672 1096 13 MOBINIL, EG 36935 604 519 31 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36903 548 242 359 MT-MPLS, MA 36914 484 82 3 KENET-AS, KE 36992 428 1038 209 ETISALAT-MISR, 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 14092 40855 5388 AMAZON-02, US 9808 12724 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 7368 2017 779 UNINET, MX 22773 3347 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2956 230 1738 USDA-1, US 56046 2915 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2525 207 1168 AS-COLOCROSSING, US 367 2358 2669 1100 DNIC-ASBLK-00306-00371, US 11830 1987 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 12724 12610 CHINAMOBILE-CN China Mobile Communications Grou 8151 7368 6589 UNINET, MX 22773 3347 3170 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2915 2725 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1689 1639 CMNET-HUNAN-AP China Mobile communications corp 56041 1673 1595 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1948 1428 CELLCO-PART, 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 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 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 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 41.57.124.0/24 Origin: 37442 RESERVED, ZZ 41.57.124.0/24 Transit: 37204 TELONE, ZW 41.57.127.0/24 Origin: 37442 RESERVED, ZZ 41.57.127.0/24 Transit: 37204 TELONE, ZW 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 /11:52 /12:158 /13:223 /14:590 /15:1115 /16:7651 /17:3474 /18:4123 /19:7589 /20:13103 /21:15945 /22:28500 /23:29670 /24:168820 /25:67 /26:82 /27:51 /28:18 /29:8 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3946 7368 UNINET, MX 22773 2501 3347 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2384 14092 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1038 1393 BRIGHTSPEED, US 36352 1003 2525 AS-COLOCROSSING, US 10620 968 1657 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:45 2:467 3:915 4:5 5:876 6:143 7:5 8:646 9:3 11:171 12:882 13:447 14:119 15:335 16:248 17:3 18:893 20:192 21:4 22:188 23:2678 24:670 27:26 29:19 31:501 32:12 34:12 35:173 36:3082 37:876 38:2635 39:635 40:93 41:1058 42:281 43:207 44:31 45:4326 46:1034 47:114 49:20 50:481 51:383 52:1425 54:352 55:1110 56:11 57:23 58:44 59:35 60:31 61:53 62:531 63:784 64:1954 65:1087 66:1588 67:1080 68:366 69:1232 70:446 71:183 72:689 74:963 75:322 76:249 77:429 78:371 79:244 80:323 81:382 82:714 83:217 84:316 85:456 86:263 87:233 88:303 89:713 90:109 91:980 92:698 93:455 94:973 95:664 96:264 97:54 98:492 99:216 100:40 101:22 102:428 103:1229 104:1681 105:212 106:54 107:1555 108:532 109:393 110:52 111:2250 112:875 113:39 114:55 115:18 116:54 117:1215 118:69 119:67 120:1504 121:46 122:61 123:131 124:65 125:25 126:1 128:543 129:396 130:652 131:1102 132:555 133:221 134:509 135:122 136:679 137:521 138:1038 139:446 140:690 141:380 142:987 143:857 144:409 145:154 146:651 147:492 148:999 149:790 150:196 151:827 152:629 153:180 154:948 155:945 156:878 157:436 158:667 159:733 160:910 161:677 162:1024 163:450 164:780 165:685 166:819 167:706 168:1549 169:164 170:1864 171:100 172:1316 173:815 174:366 175:89 176:506 177:1020 178:607 179:923 180:43 181:2340 182:25 183:1166 184:450 185:3542 186:3124 187:1804 188:823 189:1908 190:6084 191:559 192:5251 193:1847 194:1215 195:975 196:923 197:1141 198:2734 199:5165 200:4522 201:3636 202:979 203:708 204:2210 205:1829 206:1594 207:1610 208:1569 209:2035 210:352 211:477 212:932 213:773 214:955 215:39 216:2584 217:473 218:595 219:19 220:32 221:452 222:24 223:1266 End of report