IPv4 R&E Routing Table Report 20:15 GMT Sat 17 Jan, 2026 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: 288454 Prefixes after maximum aggregation (per Origin AS): 119137 Deaggregation factor: 2.42 Unique aggregates announced (without unneeded subnets): 149137 Number of IPv4 prefixes with a valid ROA: 146171 Number of IPv4 prefixes with an invalid ROA: 207 Number of IPv4 prefixes with no ROA: 142076 Total ASes present in the Internet Routing Table: 20521 Prefixes per ASN: 14.06 Origin-only ASes present in the Internet Routing Table: 17694 Origin ASes announcing only one prefix: 7977 Transit ASes present in the Internet Routing Table: 2827 Transit-only ASes present in the Internet Routing Table: 724 Paths with bogon ASNs present in the IPv4 Routing Table: 7 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 33 Max AS path prepend of ASN ( 37133) 26 Prefixes from unregistered ASNs in the Routing Table: 248 Number of instances of unregistered ASNs: 277 Number of 32-bit ASNs allocated by the RIRs: 48411 Number of 32-bit ASNs visible in the Routing Table: 8313 Prefixes from 32-bit ASNs in the Routing Table: 34207 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: 107 Number of addresses announced to Internet: 1613222341 Equivalent to 96 /8s, 39 /16s and 209 /24s Percentage of available address space announced: 43.6 Percentage of allocated address space announced: 43.6 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: 93729 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42814 Total APNIC prefixes after maximum aggregation: 8942 APNIC Deaggregation factor: 4.79 Prefixes being announced from the APNIC address blocks: 39767 Unique aggregates announced from the APNIC address blocks: 9124 APNIC Region origin ASes present in the Internet Routing Table: 1340 APNIC Prefixes per ASN: 29.68 APNIC Region origin ASes announcing only one prefix: 566 APNIC Region transit ASes present in the Internet Routing Table: 233 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 658 Number of APNIC addresses announced to Internet: 171103340 Equivalent to 10 /8s, 50 /16s and 212 /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: 125802 Total ARIN prefixes after maximum aggregation: 64743 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 123692 Unique aggregates announced from the ARIN address blocks: 70481 ARIN Region origin ASes present in the Internet Routing Table: 9120 ARIN Prefixes per ASN: 13.56 ARIN Region origin ASes announcing only one prefix: 3785 ARIN Region transit ASes present in the Internet Routing Table: 853 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: 2182 Number of ARIN addresses announced to Internet: 1008545833 Equivalent to 60 /8s, 29 /16s and 48 /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: 52096 Total RIPE prefixes after maximum aggregation: 26341 RIPE Deaggregation factor: 1.98 Prefixes being announced from the RIPE address blocks: 54687 Unique aggregates announced from the RIPE address blocks: 37935 RIPE Region origin ASes present in the Internet Routing Table: 4520 RIPE Prefixes per ASN: 12.10 RIPE Region origin ASes announcing only one prefix: 1931 RIPE Region transit ASes present in the Internet Routing Table: 685 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1906 Number of RIPE addresses announced to Internet: 280767696 Equivalent to 16 /8s, 188 /16s and 44 /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: 56897 Total LACNIC prefixes after maximum aggregation: 16446 LACNIC Deaggregation factor: 3.46 Prefixes being announced from the LACNIC address blocks: 54739 Unique aggregates announced from the LACNIC address blocks: 24315 LACNIC Region origin ASes present in the Internet Routing Table: 4407 LACNIC Prefixes per ASN: 12.42 LACNIC Region origin ASes announcing only one prefix: 1579 LACNIC Region transit ASes present in the Internet Routing Table: 853 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: 3402 Number of LACNIC addresses announced to Internet: 107938656 Equivalent to 6 /8s, 111 /16s and 3 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 10597 Total AfriNIC prefixes after maximum aggregation: 2471 AfriNIC Deaggregation factor: 4.29 Prefixes being announced from the AfriNIC address blocks: 15462 Unique aggregates announced from the AfriNIC address blocks: 7185 AfriNIC Region origin ASes present in the Internet Routing Table: 296 AfriNIC Prefixes per ASN: 52.24 AfriNIC Region origin ASes announcing only one prefix: 116 AfriNIC Region transit ASes present in the Internet Routing Table: 82 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 165 Number of AfriNIC addresses announced to Internet: 44722176 Equivalent to 2 /8s, 170 /16s and 104 /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 13321 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3354 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 1876 118 438 LCS-AS-AP LARUS Limited, HK 56041 1762 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1709 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1054 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 908 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 891 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 759 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 653 1159 155 ALIBABA-CN-NET Alibaba US Technology Co., 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 14032 38738 5431 AMAZON-02, US 22773 4494 3081 298 ASN-CXA-ALL-CCI-22773-RDC, US 749 3145 54729 2396 DNIC-AS-00749, US 36352 2419 200 1147 AS-COLOCROSSING, US 6167 1974 4173 531 CELLCO-PART, US 11776 1904 259 213 ATLANTICBB-JOHNSTOWN, US 367 1793 1817 820 DNIC-ASBLK-00306-00371, US 209 1639 4882 263 CENTURYLINK-US-LEGACY-QWEST, US 19901 1477 724 699 BRIGHTSPEED, US 20057 1438 1017 111 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 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 1248 96 1015 AKAMAI-ASN1, NL 25019 1146 1335 138 SAUDINETSTC-AS, SA 34984 993 161 746 TELLCOM-AS, TR 8452 907 1841 17 TE-AS TE-AS, EG 3215 900 4820 300 France Telecom - Orange, FR 212238 704 49 619 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 549 53 25 Jordan Data Communications, JO 5511 531 98 450 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 7360 1970 805 UNINET, MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 10620 1535 217 1148 Telmex Colombia S.A., CO 11664 1367 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1255 371 22 Telefonica del Peru S.A.A., PE 26615 1010 2486 56 TIM SA, BR 18881 904 1127 31 TELEFONICA BRASIL S.A, BR 27651 849 140 44 ENTEL CHILE S.A., CL 12252 682 164 24 America Movil Peru S.A.C., PE 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 1439 463 90 RAYA-AS, EG 37069 1079 1084 13 MOBINIL, EG 24863 944 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 571 82 3 KENET-AS, KE 36935 509 135 138 Vodafone-, EG 36903 506 235 346 MT-MPLS, MA 29571 422 78 20 ORANGE-COTE-IVOIRE, CI 36992 388 874 246 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 14032 38738 5431 AMAZON-02, US 9808 13321 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7360 1970 805 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4494 3081 298 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3354 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3145 54729 2396 DNIC-AS-00749, US 36352 2419 200 1147 AS-COLOCROSSING, US 11830 1991 369 65 Instituto Costarricense de Electricidad y 6167 1974 4173 531 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 13321 13201 CHINAMOBILE-CN China Mobile Communications Grou 8151 7360 6555 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4494 4196 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3354 3159 CMNET-JIANGSU-AP China Mobile communications co 11830 1991 1926 Instituto Costarricense de Electricidad y Telec 11776 1904 1691 ATLANTICBB-JOHNSTOWN, US 56041 1762 1683 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1709 1659 CMNET-HUNAN-AP China Mobile communications corp 6167 1974 1443 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 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4, US 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3, US 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US 33684 UNALLOCATED 12.37.144.0/24 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 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, 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 23.155.185.0/24 Origin: 401541 OSIE, US 23.155.185.0/24 Transit: 397423 TIER-NET, US 23.157.217.0/24 Origin: 401541 OSIE, US 23.157.217.0/24 Transit: 397423 TIER-NET, US 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 /12:159 /13:213 /14:576 /15:1066 /16:7496 /17:3484 /18:4166 /19:7683 /20:13127 /21:16104 /22:28672 /23:29537 /24:175831 /25:61 /26:82 /27:50 /28:18 /29:7 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4039 7360 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3050 4494 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2489 14032 AMAZON-02, US 11830 1695 1991 Instituto Costarricense de Electricidad y Telecom., CR 11664 1054 1367 Techtel LMDS Comunicaciones Interactivas S.A., AR 19901 1052 1477 BRIGHTSPEED, US 36352 1015 2419 AS-COLOCROSSING, US 209 953 1639 CENTURYLINK-US-LEGACY-QWEST, US 10620 920 1535 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:49 2:463 3:972 4:5 5:1184 6:172 7:5 8:634 9:5 11:172 12:880 13:563 14:179 15:360 16:154 17:3 18:911 20:203 21:4 22:188 23:2848 24:662 27:59 29:19 31:515 32:13 34:6 35:182 36:3311 37:646 38:2336 39:828 40:251 41:1104 42:23 43:203 44:29 45:4407 46:929 47:167 49:18 50:483 51:522 52:1078 54:228 55:1083 56:11 57:31 58:45 59:46 60:74 61:60 62:595 63:723 64:2194 65:996 66:2350 67:1120 68:497 69:1226 70:439 71:157 72:701 74:975 75:293 76:238 77:418 78:569 79:244 80:349 81:383 82:843 83:209 84:348 85:643 86:237 87:207 88:281 89:650 90:100 91:959 92:670 93:961 94:984 95:1308 96:288 97:45 98:391 99:271 100:22 101:25 102:537 103:1314 104:1709 105:155 106:4 107:1685 108:520 109:390 110:94 111:2754 112:1265 113:33 114:34 115:55 116:56 117:1503 118:72 119:86 120:1926 121:37 122:77 123:131 124:68 125:48 128:561 129:376 130:722 131:1130 132:579 133:220 134:497 135:147 136:736 137:606 138:1034 139:446 140:758 141:378 142:1470 143:858 144:501 145:193 146:686 147:468 148:1019 149:725 150:227 151:874 152:832 153:282 154:2258 155:1071 156:1755 157:492 158:647 159:834 160:634 161:723 162:975 163:414 164:740 165:636 166:582 167:709 168:1464 169:163 170:1849 171:101 172:1548 173:784 174:279 175:100 176:664 177:865 178:625 179:896 180:45 181:2483 182:26 183:1611 184:435 185:3525 186:3425 187:1776 188:1054 189:1911 190:6331 191:557 192:5059 193:1729 194:1126 195:972 196:706 197:1062 198:2676 199:2454 200:4571 201:3646 202:1123 203:829 204:2198 205:1773 206:1489 207:1709 208:1711 209:1913 210:447 211:512 212:1104 213:873 214:972 215:43 216:2484 217:569 218:647 219:29 220:82 221:534 222:29 223:1663 End of report