IPv4 R&E Routing Table Report 20:15 GMT Tue 07 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: 279103 Prefixes after maximum aggregation (per Origin AS): 118273 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 141662 Number of IPv4 prefixes with a valid ROA: 131457 Number of IPv4 prefixes with an invalid ROA: 208 Number of IPv4 prefixes with no ROA: 147438 Total ASes present in the Internet Routing Table: 20108 Prefixes per ASN: 13.88 Origin-only ASes present in the Internet Routing Table: 17364 Origin ASes announcing only one prefix: 7753 Transit ASes present in the Internet Routing Table: 2744 Transit-only ASes present in the Internet Routing Table: 672 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: 299 Number of instances of unregistered ASNs: 328 Number of 32-bit ASNs allocated by the RIRs: 47654 Number of 32-bit ASNs visible in the Routing Table: 7957 Prefixes from 32-bit ASNs in the Routing Table: 32785 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: 1611880613 Equivalent to 96 /8s, 19 /16s and 88 /24s Percentage of available address space announced: 43.5 Percentage of allocated address space announced: 43.5 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: 87869 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38676 Total APNIC prefixes after maximum aggregation: 7932 APNIC Deaggregation factor: 4.88 Prefixes being announced from the APNIC address blocks: 37692 Unique aggregates announced from the APNIC address blocks: 8339 APNIC Region origin ASes present in the Internet Routing Table: 1153 APNIC Prefixes per ASN: 32.69 APNIC Region origin ASes announcing only one prefix: 444 APNIC Region transit ASes present in the Internet Routing Table: 187 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: 522 Number of APNIC addresses announced to Internet: 163945068 Equivalent to 9 /8s, 197 /16s and 154 /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: 126801 Total ARIN prefixes after maximum aggregation: 66157 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 124155 Unique aggregates announced from the ARIN address blocks: 67602 ARIN Region origin ASes present in the Internet Routing Table: 9227 ARIN Prefixes per ASN: 13.46 ARIN Region origin ASes announcing only one prefix: 3856 ARIN Region transit ASes present in the Internet Routing Table: 850 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: 2191 Number of ARIN addresses announced to Internet: 1020446185 Equivalent to 60 /8s, 210 /16s and 197 /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: 46497 Total RIPE prefixes after maximum aggregation: 24944 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 48943 Unique aggregates announced from the RIPE address blocks: 35765 RIPE Region origin ASes present in the Internet Routing Table: 4282 RIPE Prefixes per ASN: 11.43 RIPE Region origin ASes announcing only one prefix: 1807 RIPE Region transit ASes present in the Internet Routing Table: 670 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: 1773 Number of RIPE addresses announced to Internet: 274554192 Equivalent to 16 /8s, 93 /16s and 93 /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: 56244 Total LACNIC prefixes after maximum aggregation: 16352 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54319 Unique aggregates announced from the LACNIC address blocks: 24095 LACNIC Region origin ASes present in the Internet Routing Table: 4349 LACNIC Prefixes per ASN: 12.49 LACNIC Region origin ASes announcing only one prefix: 1539 LACNIC Region transit ASes present in the Internet Routing Table: 840 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: 3313 Number of LACNIC addresses announced to Internet: 108288768 Equivalent to 6 /8s, 116 /16s and 91 /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: 10586 Total AfriNIC prefixes after maximum aggregation: 2638 AfriNIC Deaggregation factor: 4.01 Prefixes being announced from the AfriNIC address blocks: 13902 Unique aggregates announced from the AfriNIC address blocks: 5770 AfriNIC Region origin ASes present in the Internet Routing Table: 293 AfriNIC Prefixes per ASN: 47.45 AfriNIC Region origin ASes announcing only one prefix: 107 AfriNIC Region transit ASes present in the Internet Routing Table: 71 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: 158 Number of AfriNIC addresses announced to Internet: 44538112 Equivalent to 2 /8s, 167 /16s and 153 /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 13474 8729 118 CHINAMOBILE-CN China Mobile Communication 56046 3056 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1733 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1714 192 50 CMNET-HUNAN-AP China Mobile communication 24444 933 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 868 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 660 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 4780 620 272 205 SEEDNET Digital United Inc., TW 2907 611 2169 463 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 14305 40991 5380 AMAZON-02, US 22773 4015 3051 361 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3097 240 1718 USDA-1, US 36352 2560 209 1172 AS-COLOCROSSING, US 6167 1947 4036 513 CELLCO-PART, US 11776 1885 259 215 ATLANTICBB-JOHNSTOWN, US 367 1875 2137 879 DNIC-ASBLK-00306-00371, US 209 1648 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1439 680 719 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 39891 1934 129 48 ALJAWWALSTC-AS, SA 20940 1251 98 1016 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 25019 861 1304 131 SAUDINETSTC-AS, SA 8452 810 1841 16 TE-AS TE-AS, EG 212238 715 53 633 CDNEXT, GB 34984 618 105 476 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 564 53 25 Jordan Data Communications, JO 5511 531 129 447 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 6664 1877 790 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1798 253 1285 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1237 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1179 371 23 Telefonica del Peru S.A.A., PE 26615 1007 2486 56 TIM SA, BR 18881 893 1127 31 TELEFONICA BRASIL S.A, BR 12252 695 164 24 America Movil Peru S.A.C., PE 27651 650 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 1211 385 94 RAYA-AS, EG 24863 1016 389 22 LINKdotNET-AS, EG 37069 977 1096 13 MOBINIL, EG 36992 611 1112 309 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 574 82 3 KENET-AS, KE 36903 487 220 344 MT-MPLS, MA 29571 479 98 68 ORANGE-COTE-IVOIRE, CI 2018 375 318 69 TENET-1, ZA 37693 344 599 42 TUNISIANA, TN 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 14305 40991 5380 AMAZON-02, US 9808 13474 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 6664 1877 790 UNINET, MX 22773 4015 3051 361 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3097 240 1718 USDA-1, US 56046 3056 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2560 209 1172 AS-COLOCROSSING, US 11830 1989 369 64 Instituto Costarricense de Electricidad y 6167 1947 4036 513 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 13474 13356 CHINAMOBILE-CN China Mobile Communications Grou 8151 6664 5874 UNINET, MX 22773 4015 3654 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3056 2863 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 39891 1934 1886 ALJAWWALSTC-AS, SA 11776 1885 1670 ATLANTICBB-JOHNSTOWN, US 56047 1714 1664 CMNET-HUNAN-AP China Mobile communications corp 56041 1733 1655 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1947 1434 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 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, 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 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 23.135.216.0/24 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 23.174.40.0/24 Origin: 27317 RESERVED, ZZ 23.174.40.0/24 Transit: 21738 ROZINT, 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 /10:30 /11:50 /12:158 /13:214 /14:583 /15:1098 /16:7574 /17:3421 /18:4152 /19:7602 /20:12929 /21:15745 /22:28142 /23:28957 /24:168192 /25:56 /26:81 /27:49 /28:18 /29:8 /30:13 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3627 6664 UNINET, MX 22773 2527 4015 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2392 14305 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 10620 1081 1798 Telmex Colombia S.A., CO 39891 1079 1934 ALJAWWALSTC-AS, SA 19901 1055 1439 BRIGHTSPEED, US 36352 1039 2560 AS-COLOCROSSING, US 209 959 1648 CENTURYLINK-US-LEGACY-QWEST, US 11664 908 1237 Techtel LMDS Comunicaciones Interactivas S.A., AR Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:28 2:492 3:941 4:5 5:752 6:156 7:5 8:624 9:5 11:171 12:888 13:507 14:171 15:344 16:269 17:3 18:897 20:195 21:4 22:188 23:2564 24:684 27:56 29:19 31:464 32:13 34:11 35:180 36:3178 37:844 38:2484 39:730 40:93 41:1078 42:145 43:197 44:26 45:4224 46:976 47:116 49:21 50:479 51:390 52:1422 54:359 55:1094 56:11 57:30 58:17 59:30 60:147 61:100 62:548 63:756 64:1941 65:1035 66:1633 67:1083 68:384 69:1151 70:447 71:177 72:765 74:974 75:304 76:252 77:398 78:296 79:230 80:313 81:381 82:746 83:199 84:336 85:504 86:246 87:184 88:300 89:669 90:105 91:894 92:664 93:416 94:909 95:685 96:280 97:50 98:497 99:228 100:30 101:22 102:416 103:1062 104:1631 105:169 106:81 107:1579 108:524 109:353 110:107 111:2442 112:1050 113:32 114:38 115:63 116:58 117:1418 118:70 119:70 120:1608 121:30 122:94 123:189 124:178 125:26 128:554 129:441 130:607 131:1057 132:573 133:222 134:484 135:124 136:675 137:502 138:1005 139:462 140:734 141:360 142:1102 143:869 144:407 145:160 146:654 147:473 148:980 149:677 150:204 151:787 152:666 153:176 154:1191 155:886 156:1165 157:436 158:588 159:743 160:595 161:699 162:1018 163:378 164:749 165:630 166:814 167:682 168:1505 169:154 170:1844 171:99 172:1311 173:790 174:370 175:138 176:440 177:923 178:678 179:891 180:37 181:2407 182:28 183:1448 184:451 185:3155 186:3263 187:1580 188:776 189:1761 190:6399 191:554 192:5104 193:1715 194:1030 195:919 196:751 197:1141 198:2706 199:5235 200:4431 201:3662 202:1001 203:799 204:2161 205:1830 206:1533 207:1594 208:1552 209:1959 210:513 211:509 212:958 213:717 214:955 215:40 216:2426 217:467 218:708 219:18 220:128 221:473 222:26 223:1453 End of report