IPv4 R&E Routing Table Report 20:15 GMT Wed 31 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: 289500 Prefixes after maximum aggregation (per Origin AS): 119481 Deaggregation factor: 2.42 Unique aggregates announced (without unneeded subnets): 149896 Number of IPv4 prefixes with a valid ROA: 147473 Number of IPv4 prefixes with an invalid ROA: 200 Number of IPv4 prefixes with no ROA: 141827 Total ASes present in the Internet Routing Table: 20638 Prefixes per ASN: 14.03 Origin-only ASes present in the Internet Routing Table: 17795 Origin ASes announcing only one prefix: 8001 Transit ASes present in the Internet Routing Table: 2843 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: 35 Max AS path prepend of ASN (273113) 30 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: 48315 Number of 32-bit ASNs visible in the Routing Table: 8332 Prefixes from 32-bit ASNs in the Routing Table: 34184 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: 147 Number of addresses announced to Internet: 1620084677 Equivalent to 96 /8s, 144 /16s and 135 /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: 93907 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42658 Total APNIC prefixes after maximum aggregation: 8836 APNIC Deaggregation factor: 4.83 Prefixes being announced from the APNIC address blocks: 39245 Unique aggregates announced from the APNIC address blocks: 8870 APNIC Region origin ASes present in the Internet Routing Table: 1308 APNIC Prefixes per ASN: 30.00 APNIC Region origin ASes announcing only one prefix: 541 APNIC Region transit ASes present in the Internet Routing Table: 219 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: 641 Number of APNIC addresses announced to Internet: 169044844 Equivalent to 10 /8s, 19 /16s and 107 /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: 126511 Total ARIN prefixes after maximum aggregation: 65172 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 124423 Unique aggregates announced from the ARIN address blocks: 71108 ARIN Region origin ASes present in the Internet Routing Table: 9206 ARIN Prefixes per ASN: 13.52 ARIN Region origin ASes announcing only one prefix: 3823 ARIN Region transit ASes present in the Internet Routing Table: 861 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: 2192 Number of ARIN addresses announced to Internet: 1012631593 Equivalent to 60 /8s, 91 /16s and 136 /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: 51945 Total RIPE prefixes after maximum aggregation: 26157 RIPE Deaggregation factor: 1.99 Prefixes being announced from the RIPE address blocks: 54418 Unique aggregates announced from the RIPE address blocks: 37482 RIPE Region origin ASes present in the Internet Routing Table: 4554 RIPE Prefixes per ASN: 11.95 RIPE Region origin ASes announcing only one prefix: 1937 RIPE Region transit ASes present in the Internet Routing Table: 696 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 24 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1920 Number of RIPE addresses announced to Internet: 285234640 Equivalent to 17 /8s, 0 /16s and 85 /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: 57390 Total LACNIC prefixes after maximum aggregation: 16553 LACNIC Deaggregation factor: 3.47 Prefixes being announced from the LACNIC address blocks: 55209 Unique aggregates announced from the LACNIC address blocks: 24401 LACNIC Region origin ASes present in the Internet Routing Table: 4387 LACNIC Prefixes per ASN: 12.58 LACNIC Region origin ASes announcing only one prefix: 1570 LACNIC Region transit ASes present in the Internet Routing Table: 844 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: 3385 Number of LACNIC addresses announced to Internet: 107791200 Equivalent to 6 /8s, 108 /16s and 195 /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: 10735 Total AfriNIC prefixes after maximum aggregation: 2558 AfriNIC Deaggregation factor: 4.20 Prefixes being announced from the AfriNIC address blocks: 16058 Unique aggregates announced from the AfriNIC address blocks: 7894 AfriNIC Region origin ASes present in the Internet Routing Table: 333 AfriNIC Prefixes per ASN: 48.22 AfriNIC Region origin ASes announcing only one prefix: 130 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: 194 Number of AfriNIC addresses announced to Internet: 45224960 Equivalent to 2 /8s, 178 /16s and 20 /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 13204 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3335 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2227 140 503 LCS-AS-AP LARUS Limited, HK 56041 1756 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1731 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1046 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 907 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 888 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 739 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 656 1159 153 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 14029 38462 5428 AMAZON-02, US 22773 4745 3097 373 ASN-CXA-ALL-CCI-22773-RDC, US 749 3143 54729 2394 DNIC-AS-00749, US 36352 2415 200 1144 AS-COLOCROSSING, US 6167 1972 4172 531 CELLCO-PART, US 11776 1908 259 213 ATLANTICBB-JOHNSTOWN, US 367 1808 1885 822 DNIC-ASBLK-00306-00371, US 209 1642 4884 264 CENTURYLINK-US-LEGACY-QWEST, US 19901 1479 717 702 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 1278 98 1034 AKAMAI-ASN1, NL 25019 1147 1335 138 SAUDINETSTC-AS, SA 34984 995 161 746 TELLCOM-AS, TR 3215 898 4820 298 France Telecom - Orange, FR 8452 853 1841 16 TE-AS TE-AS, EG 212238 700 49 617 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 557 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 7392 1933 772 UNINET, MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 10620 1592 224 1174 Telmex Colombia S.A., CO 11664 1371 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1260 371 22 Telefonica del Peru S.A.A., PE 26615 1010 2486 56 TIM SA, BR 18881 905 1127 31 TELEFONICA BRASIL S.A, BR 27651 849 140 44 ENTEL CHILE S.A., CL 52468 696 44 199 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 1443 463 90 RAYA-AS, EG 37069 1099 1084 13 MOBINIL, EG 24863 933 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 559 82 3 KENET-AS, KE 36903 506 235 346 MT-MPLS, MA 36935 504 133 134 Vodafone-, EG 36992 465 942 269 ETISALAT-MISR, EG 29571 426 94 22 ORANGE-COTE-IVOIRE, CI 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 14029 38462 5428 AMAZON-02, US 9808 13204 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7392 1933 772 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4745 3097 373 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3335 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3143 54729 2394 DNIC-AS-00749, US 36352 2415 200 1144 AS-COLOCROSSING, US 17561 2227 140 503 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 13204 13084 CHINAMOBILE-CN China Mobile Communications Grou 8151 7392 6620 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4745 4372 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3335 3140 CMNET-JIANGSU-AP China Mobile communications co 11830 1992 1927 Instituto Costarricense de Electricidad y Telec 17561 2227 1724 LCS-AS-AP LARUS Limited, HK 11776 1908 1695 ATLANTICBB-JOHNSTOWN, US 56047 1731 1681 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 /14:583 /15:1069 /16:7484 /17:3497 /18:4176 /19:7652 /20:13254 /21:16306 /22:28655 /23:29707 /24:176404 /25:60 /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 4116 7392 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3053 4745 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2464 14029 AMAZON-02, US 11830 1696 1992 Instituto Costarricense de Electricidad y Telecom., CR 19901 1056 1479 BRIGHTSPEED, US 11664 1047 1371 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1014 2415 AS-COLOCROSSING, US 10620 960 1592 Telmex Colombia S.A., CO 209 955 1642 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) ---------------------------------------------- 1:29 2:473 3:974 4:5 5:1181 6:174 7:5 8:636 9:5 11:172 12:889 13:553 14:178 15:360 16:250 17:3 18:907 20:201 21:4 22:188 23:2858 24:599 27:55 29:19 31:503 32:13 34:6 35:182 36:3342 37:599 38:2457 39:806 40:266 41:1081 42:29 43:222 44:28 45:4482 46:956 47:172 49:20 50:494 51:523 52:1076 54:222 55:1122 56:11 57:35 58:46 59:42 60:74 61:58 62:603 63:726 64:2139 65:1022 66:2363 67:1131 68:517 69:1210 70:439 71:155 72:709 74:994 75:301 76:236 77:412 78:543 79:258 80:345 81:417 82:855 83:211 84:343 85:598 86:238 87:199 88:282 89:651 90:105 91:940 92:674 93:969 94:1002 95:1344 96:294 97:51 98:390 99:277 100:21 101:23 102:550 103:1293 104:1745 105:198 106:3 107:1680 108:526 109:377 110:93 111:2735 112:1223 113:36 114:38 115:56 116:55 117:1484 118:135 119:103 120:1768 121:39 122:74 123:112 124:69 125:50 128:572 129:386 130:701 131:1107 132:558 133:221 134:527 135:136 136:680 137:591 138:1001 139:449 140:764 141:376 142:1428 143:858 144:394 145:191 146:679 147:475 148:1021 149:727 150:284 151:863 152:820 153:277 154:2282 155:1075 156:2049 157:485 158:630 159:839 160:645 161:708 162:981 163:440 164:741 165:653 166:580 167:698 168:1486 169:169 170:1927 171:101 172:1524 173:798 174:278 175:98 176:647 177:914 178:614 179:842 180:53 181:2524 182:32 183:1558 184:451 185:3504 186:3418 187:1739 188:1064 189:1912 190:6375 191:571 192:5085 193:1733 194:1133 195:1002 196:719 197:1027 198:2708 199:2465 200:4626 201:3676 202:1081 203:818 204:2215 205:1809 206:1549 207:1730 208:1714 209:1957 210:384 211:504 212:1082 213:812 214:979 215:43 216:2532 217:561 218:642 219:30 220:91 221:528 222:29 223:1635 End of report