IPv4 R&E Routing Table Report 20:15 GMT Fri 19 Dec, 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: 293353 Prefixes after maximum aggregation (per Origin AS): 121477 Deaggregation factor: 2.41 Unique aggregates announced (without unneeded subnets): 153224 Number of IPv4 prefixes with a valid ROA: 147107 Number of IPv4 prefixes with an invalid ROA: 197 Number of IPv4 prefixes with no ROA: 146049 Total ASes present in the Internet Routing Table: 20728 Prefixes per ASN: 14.15 Origin-only ASes present in the Internet Routing Table: 17878 Origin ASes announcing only one prefix: 8041 Transit ASes present in the Internet Routing Table: 2850 Transit-only ASes present in the Internet Routing Table: 738 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: 33 Max AS path prepend of ASN ( 37133) 26 Prefixes from unregistered ASNs in the Routing Table: 269 Number of instances of unregistered ASNs: 298 Number of 32-bit ASNs allocated by the RIRs: 48251 Number of 32-bit ASNs visible in the Routing Table: 8335 Prefixes from 32-bit ASNs in the Routing Table: 34242 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: 129 Number of addresses announced to Internet: 1622699973 Equivalent to 96 /8s, 184 /16s and 111 /24s Percentage of available address space announced: 43.8 Percentage of allocated address space announced: 43.8 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: 96647 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 41947 Total APNIC prefixes after maximum aggregation: 8660 APNIC Deaggregation factor: 4.84 Prefixes being announced from the APNIC address blocks: 38588 Unique aggregates announced from the APNIC address blocks: 8596 APNIC Region origin ASes present in the Internet Routing Table: 1257 APNIC Prefixes per ASN: 30.70 APNIC Region origin ASes announcing only one prefix: 507 APNIC Region transit ASes present in the Internet Routing Table: 213 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: 605 Number of APNIC addresses announced to Internet: 167958380 Equivalent to 10 /8s, 2 /16s and 215 /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: 131519 Total ARIN prefixes after maximum aggregation: 67447 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 129463 Unique aggregates announced from the ARIN address blocks: 75080 ARIN Region origin ASes present in the Internet Routing Table: 9350 ARIN Prefixes per ASN: 13.85 ARIN Region origin ASes announcing only one prefix: 3891 ARIN Region transit ASes present in the Internet Routing Table: 883 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: 2240 Number of ARIN addresses announced to Internet: 1015871017 Equivalent to 60 /8s, 140 /16s and 246 /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: 51927 Total RIPE prefixes after maximum aggregation: 26207 RIPE Deaggregation factor: 1.98 Prefixes being announced from the RIPE address blocks: 54440 Unique aggregates announced from the RIPE address blocks: 37666 RIPE Region origin ASes present in the Internet Routing Table: 4579 RIPE Prefixes per ASN: 11.89 RIPE Region origin ASes announcing only one prefix: 1954 RIPE Region transit ASes present in the Internet Routing Table: 690 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: 1935 Number of RIPE addresses announced to Internet: 285135568 Equivalent to 16 /8s, 254 /16s and 210 /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: 56806 Total LACNIC prefixes after maximum aggregation: 16565 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 54556 Unique aggregates announced from the LACNIC address blocks: 24360 LACNIC Region origin ASes present in the Internet Routing Table: 4370 LACNIC Prefixes per ASN: 12.48 LACNIC Region origin ASes announcing only one prefix: 1558 LACNIC Region transit ASes present in the Internet Routing Table: 839 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 27 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3369 Number of LACNIC addresses announced to Internet: 107156576 Equivalent to 6 /8s, 99 /16s and 20 /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: 10885 Total AfriNIC prefixes after maximum aggregation: 2384 AfriNIC Deaggregation factor: 4.57 Prefixes being announced from the AfriNIC address blocks: 16177 Unique aggregates announced from the AfriNIC address blocks: 7399 AfriNIC Region origin ASes present in the Internet Routing Table: 317 AfriNIC Prefixes per ASN: 51.03 AfriNIC Region origin ASes announcing only one prefix: 131 AfriNIC Region transit ASes present in the Internet Routing Table: 89 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: 186 Number of AfriNIC addresses announced to Internet: 46429952 Equivalent to 2 /8s, 196 /16s and 119 /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 13159 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3312 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2208 139 519 LCS-AS-AP LARUS Limited, HK 56041 1750 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1725 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1016 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 908 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 884 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 734 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 659 1149 156 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 14050 38459 5448 AMAZON-02, US 22773 4774 3099 365 ASN-CXA-ALL-CCI-22773-RDC, US 749 3142 54729 2393 DNIC-AS-00749, US 11492 2807 182 1298 CABLEONE, US 36352 2535 207 1161 AS-COLOCROSSING, US 6167 1970 4171 529 CELLCO-PART, US 11776 1907 259 217 ATLANTICBB-JOHNSTOWN, US 367 1801 1885 816 DNIC-ASBLK-00306-00371, US 209 1643 4884 265 CENTURYLINK-US-LEGACY-QWEST, US 19901 1473 717 707 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 4833 298 66 ALJAWWALSTC-AS, SA 20940 1330 102 1070 AKAMAI-ASN1, NL 25019 1136 1335 138 SAUDINETSTC-AS, SA 34984 1132 162 800 TELLCOM-AS, TR 3215 898 4820 298 France Telecom - Orange, FR 8452 841 1841 16 TE-AS TE-AS, EG 212238 729 52 645 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 555 53 24 Jordan Data Communications, JO 5511 530 98 449 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 7379 1927 769 UNINET, MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 10620 1591 224 1173 Telmex Colombia S.A., CO 11664 1368 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1263 371 22 Telefonica del Peru S.A.A., PE 26615 1021 2486 56 TIM SA, BR 18881 907 1127 31 TELEFONICA BRASIL S.A, BR 52468 686 43 205 UFINET PANAMA S.A., PA 12252 683 164 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 1432 340 74 RAYA-AS, EG 37069 1083 1084 13 MOBINIL, EG 24863 995 389 16 LINKdotNET-AS, EG 29571 587 94 22 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36992 580 1078 285 ETISALAT-MISR, EG 36914 557 82 3 KENET-AS, KE 36935 507 513 8 Vodafone-, EG 36903 471 212 336 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 14050 38459 5448 AMAZON-02, US 9808 13159 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7379 1927 769 UNINET, MX 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4774 3099 365 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3312 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3142 54729 2393 DNIC-AS-00749, US 11492 2807 182 1298 CABLEONE, US 36352 2535 207 1161 AS-COLOCROSSING, US 17561 2208 139 519 LCS-AS-AP LARUS Limited, HK 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 13159 13039 CHINAMOBILE-CN China Mobile Communications Grou 8151 7379 6610 UNINET, MX 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4774 4409 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3312 3117 CMNET-JIANGSU-AP China Mobile communications co 11830 1992 1927 Instituto Costarricense de Electricidad y Telec 11776 1907 1690 ATLANTICBB-JOHNSTOWN, US 17561 2208 1689 LCS-AS-AP LARUS Limited, HK 56047 1725 1675 CMNET-HUNAN-AP China Mobile communications corp 56041 1750 1671 CMNET-ZHEJIANG-AP China Mobile communications c 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 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 12114 UNALLOCATED 12.129.100.0/24 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 23.137.48.0/24 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 /10:33 /11:52 /12:156 /13:215 /14:585 /15:1072 /16:7476 /17:3469 /18:4173 /19:7644 /20:13280 /21:16360 /22:28912 /23:29962 /24:179707 /25:59 /26:83 /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 4057 7379 UNINET, MX 39891 3521 4833 ALJAWWALSTC-AS, SA 22773 3048 4774 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2453 14050 AMAZON-02, US 11492 2231 2807 CABLEONE, US 11830 1696 1992 Instituto Costarricense de Electricidad y Telecom., CR 19901 1055 1473 BRIGHTSPEED, US 11664 1045 1368 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1015 2535 AS-COLOCROSSING, US 10620 959 1591 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) ---------------------------------------------- 1:32 2:473 3:973 4:5 5:1185 6:174 7:5 8:634 9:9 11:171 12:888 13:550 14:178 15:358 16:266 17:3 18:903 20:221 21:4 22:188 23:2941 24:1191 27:62 29:19 31:507 32:13 34:6 35:182 36:3307 37:626 38:2652 39:790 40:269 41:1061 42:24 43:217 44:37 45:4450 46:942 47:170 49:20 50:499 51:521 52:1143 54:221 55:1114 56:11 57:38 58:19 59:42 60:74 61:57 62:594 63:743 64:2352 65:1046 66:2451 67:1487 68:509 69:1335 70:438 71:163 72:868 74:1033 75:301 76:252 77:412 78:548 79:259 80:360 81:398 82:855 83:211 84:363 85:610 86:244 87:193 88:280 89:651 90:105 91:960 92:676 93:979 94:985 95:1290 96:584 97:56 98:391 99:270 100:21 101:22 102:524 103:1177 104:1773 105:199 107:1693 108:552 109:371 110:91 111:2648 112:1210 113:39 114:33 115:61 116:56 117:1472 118:70 119:86 120:1752 121:39 122:76 123:112 124:67 125:47 128:570 129:387 130:708 131:1158 132:555 133:221 134:521 135:140 136:683 137:585 138:1017 139:458 140:766 141:377 142:1437 143:861 144:391 145:190 146:689 147:507 148:1040 149:719 150:287 151:860 152:836 153:266 154:2296 155:1067 156:2041 157:484 158:638 159:966 160:1039 161:712 162:1031 163:437 164:739 165:637 166:582 167:710 168:1503 169:173 170:1984 171:102 172:1578 173:1113 174:428 175:86 176:730 177:903 178:607 179:900 180:83 181:2446 182:28 183:1544 184:586 185:3542 186:3224 187:1677 188:917 189:1913 190:6368 191:560 192:5116 193:1735 194:1139 195:1029 196:734 197:1048 198:2748 199:2515 200:4436 201:3697 202:1079 203:804 204:2223 205:1824 206:1601 207:1847 208:1742 209:1987 210:410 211:505 212:1061 213:836 214:976 215:43 216:2560 217:618 218:619 219:29 220:82 221:521 222:30 223:1622 End of report