IPv4 R&E Routing Table Report 20:15 GMT Wed 10 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: 289953 Prefixes after maximum aggregation (per Origin AS): 120333 Deaggregation factor: 2.41 Unique aggregates announced (without unneeded subnets): 150993 Number of IPv4 prefixes with a valid ROA: 145290 Number of IPv4 prefixes with an invalid ROA: 199 Number of IPv4 prefixes with no ROA: 144464 Total ASes present in the Internet Routing Table: 20797 Prefixes per ASN: 13.94 Origin-only ASes present in the Internet Routing Table: 17914 Origin ASes announcing only one prefix: 8080 Transit ASes present in the Internet Routing Table: 2883 Transit-only ASes present in the Internet Routing Table: 749 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 271 Number of instances of unregistered ASNs: 300 Number of 32-bit ASNs allocated by the RIRs: 48165 Number of 32-bit ASNs visible in the Routing Table: 8409 Prefixes from 32-bit ASNs in the Routing Table: 34584 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: 98 Number of addresses announced to Internet: 1617004221 Equivalent to 96 /8s, 97 /16s and 134 /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: 93820 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42413 Total APNIC prefixes after maximum aggregation: 8822 APNIC Deaggregation factor: 4.81 Prefixes being announced from the APNIC address blocks: 38961 Unique aggregates announced from the APNIC address blocks: 8776 APNIC Region origin ASes present in the Internet Routing Table: 1266 APNIC Prefixes per ASN: 30.77 APNIC Region origin ASes announcing only one prefix: 511 APNIC Region transit ASes present in the Internet Routing Table: 216 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: 623 Number of APNIC addresses announced to Internet: 168140132 Equivalent to 10 /8s, 5 /16s and 157 /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: 127077 Total ARIN prefixes after maximum aggregation: 65445 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 124537 Unique aggregates announced from the ARIN address blocks: 71129 ARIN Region origin ASes present in the Internet Routing Table: 9201 ARIN Prefixes per ASN: 13.54 ARIN Region origin ASes announcing only one prefix: 3832 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: 18 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2190 Number of ARIN addresses announced to Internet: 1012129833 Equivalent to 60 /8s, 83 /16s and 224 /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: 52429 Total RIPE prefixes after maximum aggregation: 26554 RIPE Deaggregation factor: 1.97 Prefixes being announced from the RIPE address blocks: 55098 Unique aggregates announced from the RIPE address blocks: 38039 RIPE Region origin ASes present in the Internet Routing Table: 4733 RIPE Prefixes per ASN: 11.64 RIPE Region origin ASes announcing only one prefix: 2026 RIPE Region transit ASes present in the Internet Routing Table: 725 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: 2012 Number of RIPE addresses announced to Internet: 283693776 Equivalent to 16 /8s, 232 /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: 57220 Total LACNIC prefixes after maximum aggregation: 16785 LACNIC Deaggregation factor: 3.41 Prefixes being announced from the LACNIC address blocks: 55133 Unique aggregates announced from the LACNIC address blocks: 24869 LACNIC Region origin ASes present in the Internet Routing Table: 4432 LACNIC Prefixes per ASN: 12.44 LACNIC Region origin ASes announcing only one prefix: 1590 LACNIC Region transit ASes present in the Internet Routing Table: 870 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: 3417 Number of LACNIC addresses announced to Internet: 107781984 Equivalent to 6 /8s, 108 /16s and 159 /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: 10543 Total AfriNIC prefixes after maximum aggregation: 2508 AfriNIC Deaggregation factor: 4.20 Prefixes being announced from the AfriNIC address blocks: 16126 Unique aggregates announced from the AfriNIC address blocks: 8088 AfriNIC Region origin ASes present in the Internet Routing Table: 297 AfriNIC Prefixes per ASN: 54.30 AfriNIC Region origin ASes announcing only one prefix: 121 AfriNIC Region transit ASes present in the Internet Routing Table: 85 Average AfriNIC Region AS path length visible: 6.4 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 167 Number of AfriNIC addresses announced to Internet: 45117952 Equivalent to 2 /8s, 176 /16s and 114 /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 13111 8729 118 CHINAMOBILE-CN China Mobile Communication 56046 3275 828 194 CMNET-JIANGSU-AP China Mobile communicati 17561 2381 150 555 LCS-AS-AP LARUS Limited, HK 56041 1741 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1720 192 50 CMNET-HUNAN-AP China Mobile communication 24444 982 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 888 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 880 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 726 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 2907 602 2169 463 SINET-AS Research Organization of Informa 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 14180 38434 5393 AMAZON-02, US 22773 4776 3099 366 ASN-CXA-ALL-CCI-22773-RDC, US 749 3208 54760 2459 DNIC-AS-00749, US 36352 2531 207 1162 AS-COLOCROSSING, US 6167 1969 4170 528 CELLCO-PART, US 11776 1908 259 216 ATLANTICBB-JOHNSTOWN, US 367 1814 1886 828 DNIC-ASBLK-00306-00371, US 209 1644 4884 265 CENTURYLINK-US-LEGACY-QWEST, US 19901 1459 712 710 BRIGHTSPEED, US 20057 1437 1001 112 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 4833 298 66 ALJAWWALSTC-AS, SA 20940 1248 96 1018 AKAMAI-ASN1, NL 25019 1135 1335 138 SAUDINETSTC-AS, SA 3215 895 4819 296 France Telecom - Orange, FR 8452 875 1841 16 TE-AS TE-AS, EG 34984 859 129 663 TELLCOM-AS, TR 212238 694 49 610 CDNEXT, GB 8376 570 53 24 Jordan Data Communications, JO 51167 565 113 248 CONTABO, DE 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 7358 1933 775 UNINET, MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 10620 1603 227 1178 Telmex Colombia S.A., CO 11664 1358 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1345 779 209 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1264 371 22 Telefonica del Peru S.A.A., PE 26615 1016 2486 56 TIM SA, BR 18881 904 1127 31 TELEFONICA BRASIL S.A, BR 12252 681 164 24 America Movil Peru S.A.C., PE 52468 674 42 200 UFINET PANAMA S.A., PA 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 1413 339 74 RAYA-AS, EG 24863 1043 389 22 LINKdotNET-AS, EG 37069 905 1096 13 MOBINIL, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36992 574 1076 283 ETISALAT-MISR, EG 36914 568 82 3 KENET-AS, KE 36935 507 127 129 Vodafone-, EG 36903 486 220 348 MT-MPLS, MA 29571 426 94 22 ORANGE-COTE-IVOIRE, CI 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 14180 38434 5393 AMAZON-02, US 9808 13111 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7358 1933 775 UNINET, MX 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4776 3099 366 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3275 828 194 CMNET-JIANGSU-AP China Mobile communicati 749 3208 54760 2459 DNIC-AS-00749, US 36352 2531 207 1162 AS-COLOCROSSING, US 17561 2381 150 555 LCS-AS-AP LARUS Limited, HK 11830 1992 369 65 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 13111 12993 CHINAMOBILE-CN China Mobile Communications Grou 8151 7358 6583 UNINET, MX 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4776 4410 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3275 3081 CMNET-JIANGSU-AP China Mobile communications co 11830 1992 1927 Instituto Costarricense de Electricidad y Telec 17561 2381 1826 LCS-AS-AP LARUS Limited, HK 11776 1908 1692 ATLANTICBB-JOHNSTOWN, US 56047 1720 1670 CMNET-HUNAN-AP China Mobile communications corp 56041 1741 1662 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 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 22538 UNALLOCATED 12.131.3.0/24 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 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, 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 /10:32 /11:51 /12:156 /13:216 /14:584 /15:1071 /16:7491 /17:3470 /18:4169 /19:7701 /20:13002 /21:16365 /22:29071 /23:29731 /24:176586 /25:60 /26:83 /27:50 /28:18 /29:6 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4040 7358 UNINET, MX 39891 3521 4833 ALJAWWALSTC-AS, SA 22773 3049 4776 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2421 14180 AMAZON-02, US 11830 1696 1992 Instituto Costarricense de Electricidad y Telecom., CR 19901 1061 1459 BRIGHTSPEED, US 11664 1035 1358 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1012 2531 AS-COLOCROSSING, US 10620 958 1603 Telmex Colombia S.A., CO 209 957 1644 CENTURYLINK-US-LEGACY-QWEST, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:30 2:494 3:963 4:5 5:1195 6:177 7:5 8:624 9:5 11:171 12:882 13:479 14:177 15:355 16:278 17:3 18:903 20:202 21:4 22:188 23:2797 24:602 27:63 29:19 31:518 32:13 34:7 35:182 36:3320 37:680 38:2509 39:777 40:266 41:1001 42:37 43:214 44:27 45:4510 46:952 47:162 49:21 50:495 51:534 52:1394 54:282 55:1105 56:11 57:31 58:19 59:42 60:90 61:70 62:597 63:721 64:2142 65:1014 66:2432 67:1127 68:491 69:1225 70:433 71:159 72:714 74:994 75:303 76:237 77:487 78:557 79:267 80:363 81:417 82:824 83:226 84:358 85:603 86:244 87:194 88:284 89:659 90:103 91:965 92:699 93:976 94:977 95:1313 96:309 97:51 98:401 99:265 100:22 101:22 102:505 103:1199 104:1739 105:199 106:38 107:1688 108:528 109:396 110:91 111:2616 112:1188 113:33 114:39 115:74 116:57 117:1455 118:77 119:109 120:1723 121:37 122:85 123:168 124:70 125:51 128:566 129:384 130:710 131:1087 132:561 133:221 134:515 135:135 136:681 137:592 138:1034 139:446 140:765 141:374 142:1413 143:894 144:427 145:193 146:694 147:512 148:1209 149:718 150:284 151:866 152:766 153:245 154:2354 155:1077 156:2109 157:448 158:671 159:832 160:624 161:710 162:1011 163:425 164:753 165:622 166:577 167:698 168:1508 169:172 170:1928 171:106 172:1565 173:808 174:275 175:116 176:614 177:910 178:613 179:898 180:54 181:2446 182:29 183:1533 184:452 185:3617 186:3212 187:1761 188:918 189:1964 190:6370 191:565 192:5071 193:1763 194:1187 195:949 196:765 197:1058 198:2704 199:2499 200:4455 201:3695 202:1124 203:802 204:2199 205:1836 206:1529 207:1731 208:1596 209:1947 210:446 211:511 212:1081 213:800 214:973 215:42 216:2496 217:534 218:661 219:29 220:99 221:517 222:30 223:1590 End of report