IPv4 R&E Routing Table Report 20:15 GMT Sat 27 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: 293793 Prefixes after maximum aggregation (per Origin AS): 121659 Deaggregation factor: 2.41 Unique aggregates announced (without unneeded subnets): 153942 Number of IPv4 prefixes with a valid ROA: 147716 Number of IPv4 prefixes with an invalid ROA: 199 Number of IPv4 prefixes with no ROA: 145878 Total ASes present in the Internet Routing Table: 20700 Prefixes per ASN: 14.19 Origin-only ASes present in the Internet Routing Table: 17856 Origin ASes announcing only one prefix: 8040 Transit ASes present in the Internet Routing Table: 2844 Transit-only ASes present in the Internet Routing Table: 735 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: 261 Number of instances of unregistered ASNs: 290 Number of 32-bit ASNs allocated by the RIRs: 48313 Number of 32-bit ASNs visible in the Routing Table: 8326 Prefixes from 32-bit ASNs in the Routing Table: 34615 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: 130 Number of addresses announced to Internet: 1621640645 Equivalent to 96 /8s, 168 /16s and 69 /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: 96935 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42463 Total APNIC prefixes after maximum aggregation: 8776 APNIC Deaggregation factor: 4.84 Prefixes being announced from the APNIC address blocks: 38925 Unique aggregates announced from the APNIC address blocks: 8755 APNIC Region origin ASes present in the Internet Routing Table: 1275 APNIC Prefixes per ASN: 30.53 APNIC Region origin ASes announcing only one prefix: 516 APNIC Region transit ASes present in the Internet Routing Table: 215 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: 619 Number of APNIC addresses announced to Internet: 167968108 Equivalent to 10 /8s, 2 /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: 131225 Total ARIN prefixes after maximum aggregation: 67399 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 129258 Unique aggregates announced from the ARIN address blocks: 75023 ARIN Region origin ASes present in the Internet Routing Table: 9346 ARIN Prefixes per ASN: 13.83 ARIN Region origin ASes announcing only one prefix: 3886 ARIN Region transit ASes present in the Internet Routing Table: 881 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: 2243 Number of ARIN addresses announced to Internet: 1015809321 Equivalent to 60 /8s, 140 /16s and 5 /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: 52031 Total RIPE prefixes after maximum aggregation: 26230 RIPE Deaggregation factor: 1.98 Prefixes being announced from the RIPE address blocks: 54488 Unique aggregates announced from the RIPE address blocks: 37631 RIPE Region origin ASes present in the Internet Routing Table: 4552 RIPE Prefixes per ASN: 11.97 RIPE Region origin ASes announcing only one prefix: 1941 RIPE Region transit ASes present in the Internet Routing Table: 687 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 24 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1921 Number of RIPE addresses announced to Internet: 284928976 Equivalent to 16 /8s, 251 /16s and 171 /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: 57192 Total LACNIC prefixes after maximum aggregation: 16513 LACNIC Deaggregation factor: 3.46 Prefixes being announced from the LACNIC address blocks: 55010 Unique aggregates announced from the LACNIC address blocks: 24371 LACNIC Region origin ASes present in the Internet Routing Table: 4357 LACNIC Prefixes per ASN: 12.63 LACNIC Region origin ASes announcing only one prefix: 1565 LACNIC Region transit ASes present in the Internet Routing Table: 838 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 25 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3353 Number of LACNIC addresses announced to Internet: 107778656 Equivalent to 6 /8s, 108 /16s and 146 /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: 10621 Total AfriNIC prefixes after maximum aggregation: 2535 AfriNIC Deaggregation factor: 4.19 Prefixes being announced from the AfriNIC address blocks: 15982 Unique aggregates announced from the AfriNIC address blocks: 8038 AfriNIC Region origin ASes present in the Internet Routing Table: 320 AfriNIC Prefixes per ASN: 49.94 AfriNIC Region origin ASes announcing only one prefix: 132 AfriNIC Region transit ASes present in the Internet Routing Table: 90 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: 190 Number of AfriNIC addresses announced to Internet: 45006848 Equivalent to 2 /8s, 174 /16s and 192 /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 13193 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3326 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2210 139 501 LCS-AS-AP LARUS Limited, HK 56041 1756 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1730 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1039 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 907 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 886 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 739 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 136787 696 44 392 PACKETHUBSA-AS-AP PacketHub S.A., PA 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 14001 38462 5444 AMAZON-02, US 22773 4743 3097 373 ASN-CXA-ALL-CCI-22773-RDC, US 749 3143 54729 2394 DNIC-AS-00749, US 11492 2807 182 1298 CABLEONE, US 36352 2415 200 1144 AS-COLOCROSSING, US 6167 1972 4172 531 CELLCO-PART, US 11776 1908 259 213 ATLANTICBB-JOHNSTOWN, US 367 1799 1883 817 DNIC-ASBLK-00306-00371, US 209 1642 4884 264 CENTURYLINK-US-LEGACY-QWEST, US 19901 1472 716 706 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 4901 302 70 ALJAWWALSTC-AS, SA 20940 1330 102 1070 AKAMAI-ASN1, NL 25019 1151 1335 138 SAUDINETSTC-AS, SA 34984 995 161 746 TELLCOM-AS, TR 3215 898 4820 298 France Telecom - Orange, FR 8452 856 1841 16 TE-AS TE-AS, EG 212238 820 59 720 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 555 53 25 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 7335 1919 772 UNINET, MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 10620 1591 224 1173 Telmex Colombia S.A., CO 11664 1369 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1259 371 22 Telefonica del Peru S.A.A., PE 26615 1011 2486 56 TIM SA, BR 18881 904 1127 31 TELEFONICA BRASIL S.A, BR 27651 849 140 44 ENTEL CHILE S.A., CL 52468 688 43 205 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 1428 341 76 RAYA-AS, EG 37069 1099 1084 13 MOBINIL, EG 24863 931 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 556 82 3 KENET-AS, KE 29571 541 94 22 ORANGE-COTE-IVOIRE, CI 36903 507 235 347 MT-MPLS, MA 36935 495 129 131 Vodafone-, EG 36992 467 984 263 ETISALAT-MISR, EG 2018 357 318 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 14001 38462 5444 AMAZON-02, US 9808 13193 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7335 1919 772 UNINET, MX 39891 4901 302 70 ALJAWWALSTC-AS, SA 22773 4743 3097 373 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3326 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3143 54729 2394 DNIC-AS-00749, US 11492 2807 182 1298 CABLEONE, US 36352 2415 200 1144 AS-COLOCROSSING, US 17561 2210 139 501 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 13193 13073 CHINAMOBILE-CN China Mobile Communications Grou 8151 7335 6563 UNINET, MX 39891 4901 4831 ALJAWWALSTC-AS, SA 22773 4743 4370 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3326 3131 CMNET-JIANGSU-AP China Mobile communications co 11830 1992 1927 Instituto Costarricense de Electricidad y Telec 17561 2210 1709 LCS-AS-AP LARUS Limited, HK 11776 1908 1695 ATLANTICBB-JOHNSTOWN, US 56047 1730 1680 CMNET-HUNAN-AP China Mobile communications corp 56041 1756 1677 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 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 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 23.137.48.0/24 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 /11:51 /12:156 /13:215 /14:586 /15:1067 /16:7478 /17:3470 /18:4155 /19:7646 /20:13258 /21:16334 /22:28799 /23:29982 /24:180306 /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 4024 7335 UNINET, MX 39891 3587 4901 ALJAWWALSTC-AS, SA 22773 3051 4743 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2455 14001 AMAZON-02, US 11492 2231 2807 CABLEONE, US 11830 1696 1992 Instituto Costarricense de Electricidad y Telecom., CR 19901 1055 1472 BRIGHTSPEED, US 11664 1046 1369 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1014 2415 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) ---------------------------------------------- 1:29 2:470 3:972 4:5 5:1190 6:174 7:5 8:631 9:5 11:172 12:887 13:542 14:179 15:359 16:250 17:3 18:907 20:221 21:4 22:188 23:2943 24:1191 27:59 29:19 31:506 32:13 34:6 35:182 36:3336 37:624 38:2493 39:801 40:267 41:1047 42:29 43:217 44:36 45:4479 46:943 47:172 49:20 50:498 51:521 52:1087 54:218 55:1125 56:11 57:39 58:46 59:47 60:74 61:58 62:598 63:742 64:2351 65:1046 66:2451 67:1490 68:509 69:1334 70:445 71:162 72:873 74:1008 75:301 76:253 77:410 78:545 79:260 80:353 81:413 82:870 83:210 84:354 85:602 86:249 87:213 88:283 89:674 90:105 91:962 92:682 93:976 94:1022 95:1325 96:583 97:55 98:397 99:270 100:21 101:21 102:522 103:1262 104:1780 105:198 107:1688 108:553 109:372 110:93 111:2676 112:1221 113:36 114:35 115:55 116:56 117:1534 118:71 119:89 120:1765 121:38 122:75 123:112 124:68 125:50 128:572 129:386 130:701 131:1150 132:555 133:221 134:524 135:140 136:684 137:584 138:1015 139:448 140:765 141:374 142:1451 143:879 144:383 145:191 146:694 147:500 148:1040 149:716 150:285 151:854 152:889 153:279 154:2318 155:1064 156:2058 157:486 158:633 159:971 160:999 161:710 162:1022 163:440 164:737 165:635 166:583 167:703 168:1480 169:168 170:1977 171:102 172:1574 173:1116 174:428 175:100 176:641 177:891 178:614 179:893 180:91 181:2522 182:28 183:1551 184:590 185:3551 186:3422 187:1687 188:996 189:1887 190:6382 191:564 192:5133 193:1733 194:1151 195:1015 196:707 197:1028 198:2748 199:2510 200:4611 201:3678 202:1075 203:798 204:2220 205:1824 206:1605 207:1842 208:1747 209:1979 210:384 211:504 212:1079 213:811 214:981 215:43 216:2581 217:625 218:639 219:29 220:82 221:526 222:30 223:1627 End of report