IPv4 R&E Routing Table Report 23:00 GMT Sat 14 Mar, 2026 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 1034174 Prefixes after maximum aggregation (per Origin AS): 397956 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 511817 Number of IPv4 prefixes with a valid ROA: 623569 Number of IPv4 prefixes with an invalid ROA: 487 Number of IPv4 prefixes with no ROA: 410118 Total ASes present in the Internet Routing Table: 78043 Prefixes per ASN: 13.25 Origin-only ASes present in the Internet Routing Table: 66862 Origin ASes announcing only one prefix: 27253 Transit ASes present in the Internet Routing Table: 11181 Transit-only ASes present in the Internet Routing Table: 589 Paths with bogon ASNs present in the IPv4 Routing Table: 41 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1092 Number of instances of unregistered ASNs: 1124 Number of 32-bit ASNs allocated by the RIRs: 48956 Number of 32-bit ASNs visible in the Routing Table: 40073 Prefixes from 32-bit ASNs in the Routing Table: 224662 Number of bogon 32-bit ASNs visible in the Routing Table: 84 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 401 Number of addresses announced to Internet: 3106892288 Equivalent to 185 /8s, 47 /16s and 106 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 337032 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 281193 Total APNIC prefixes after maximum aggregation: 81768 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 268366 Unique aggregates announced from the APNIC address blocks: 107230 APNIC Region origin ASes present in the Internet Routing Table: 15101 APNIC Prefixes per ASN: 17.77 APNIC Region origin ASes announcing only one prefix: 4607 APNIC Region transit ASes present in the Internet Routing Table: 2037 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10674 Number of APNIC addresses announced to Internet: 751887616 Equivalent to 44 /8s, 208 /16s and 229 /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: 303259 Total ARIN prefixes after maximum aggregation: 136921 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 302017 Unique aggregates announced from the ARIN address blocks: 147073 ARIN Region origin ASes present in the Internet Routing Table: 19366 ARIN Prefixes per ASN: 15.60 ARIN Region origin ASes announcing only one prefix: 7075 ARIN Region transit ASes present in the Internet Routing Table: 1926 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5499 Number of ARIN addresses announced to Internet: 1348764672 Equivalent to 80 /8s, 100 /16s and 132 /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: 285158 Total RIPE prefixes after maximum aggregation: 140968 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 287728 Unique aggregates announced from the RIPE address blocks: 187418 RIPE Region origin ASes present in the Internet Routing Table: 29300 RIPE Prefixes per ASN: 9.82 RIPE Region origin ASes announcing only one prefix: 12157 RIPE Region transit ASes present in the Internet Routing Table: 4060 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13152 Number of RIPE addresses announced to Internet: 732365056 Equivalent to 43 /8s, 167 /16s and 1 /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: 126650 Total LACNIC prefixes after maximum aggregation: 30668 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 122407 Unique aggregates announced from the LACNIC address blocks: 50231 LACNIC Region origin ASes present in the Internet Routing Table: 11353 LACNIC Prefixes per ASN: 10.78 LACNIC Region origin ASes announcing only one prefix: 2684 LACNIC Region transit ASes present in the Internet Routing Table: 2563 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9370 Number of LACNIC addresses announced to Internet: 170362112 Equivalent to 10 /8s, 39 /16s and 133 /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: 36822 Total AfriNIC prefixes after maximum aggregation: 6933 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 53255 Unique aggregates announced from the AfriNIC address blocks: 19512 AfriNIC Region origin ASes present in the Internet Routing Table: 2010 AfriNIC Prefixes per ASN: 26.50 AfriNIC Region origin ASes announcing only one prefix: 730 AfriNIC Region transit ASes present in the Internet Routing Table: 385 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1378 Number of AfriNIC addresses announced to Internet: 103324672 Equivalent to 6 /8s, 40 /16s and 156 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13730 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5972 830 522 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4846 548 320 BBIL-AP BHARTI Airtel Ltd., IN 18403 4584 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4021 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3673 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3468 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3336 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 3008 865 515 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2830 178 543 LCS-AS-AP LARUS Limited, HK Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14448 41218 5597 AMAZON-02 - Amazon.com, Inc., US 22773 4779 3101 367 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4647 308 1020 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3708 1321 75 SHAW - Shaw Communications, CA 396982 3292 4856 487 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3239 8767 853 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2700 221 890 AS-COLOCROSSING - HostPapa, US 16625 2690 1172 2088 AKAMAI-AS - Akamai Technologies, Inc., US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7204 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3829 355 2248 M247, RO 20940 3824 3393 112 AKAMAI-ASN1, NL 12389 3144 2319 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2670 193 1957 CDNEXT, GB 34984 2463 366 569 TELLCOM-AS, TR 8452 1697 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1606 243 787 HOSTROYALE, IN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12808 3302 596 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2455 506 346 Mega Cable, S.A. de C.V., MX 11830 1956 369 65 Instituto Costarricense de Electricidad y 11664 1454 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1371 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1244 371 22 INTEGRATEL PERU S.A.A., PE 22884 1057 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1057 2475 94 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 2044 648 34 RAYA-AS, EG 36992 1845 1531 336 ETISALAT-MISR, EG 24863 1289 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1228 520 43 Vodafone-, EG 37069 1109 1100 11 MOBINIL, EG 29571 1072 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 15399 555 57 59 WANANCHI-, KE 36914 544 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14448 41218 5597 AMAZON-02 - Amazon.com, Inc., US 9808 13730 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12808 3302 596 UNINET, MX 12479 7204 1711 149 UNI2-AS, ES 7545 5972 830 522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4846 548 320 BBIL-AP BHARTI Airtel Ltd., IN 22773 4779 3101 367 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4647 308 1020 CABLEONE - CABLE ONE, INC., US 18403 4584 347 25 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13730 13610 CHINAMOBILE-CN China Mobile Communications Grou 8151 12808 12212 UNINET, MX 12479 7204 7055 UNI2-AS, ES 7545 5972 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4584 4559 FPT-AS-AP FPT Telecom Company, VN 9498 4846 4526 BBIL-AP BHARTI Airtel Ltd., IN 22773 4779 4412 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4021 3992 VIETEL-AS-AP Viettel Group, VN 7155 3861 3776 VIASAT-SP-BACKBONE - ViaSat,Inc., US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 397665 UNALLOCATED 12.24.28.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, US Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:16 /9:14 /10:40 /11:95 /12:297 /13:580 /14:1189 /15:2091 /16:13580 /17:8224 /18:13209 /19:25300 /20:45586 /21:52153 /22:113474 /23:106973 /24:651353 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6971 12808 UNINET, MX 12479 6141 7204 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3507 4647 CABLEONE - CABLE ONE, INC., US 6327 3488 3708 SHAW - Shaw Communications, CA 22773 3047 4779 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2588 14448 AMAZON-02 - Amazon.com, Inc., US 30036 2316 2664 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2232 3452 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2489 2:1620 3:1002 4:5 5:5197 6:196 7:6 8:1498 9:29 11:172 12:1194 13:637 14:2667 15:459 16:167 17:420 18:914 20:603 21:4 22:188 23:8186 24:2828 25:2 27:2821 28:1 29:19 31:3414 32:30 34:90 35:291 36:4630 37:4455 38:9956 39:1267 40:415 41:4505 42:2101 43:3034 44:445 45:19956 46:4905 47:408 48:89 49:2192 50:2068 51:602 52:1306 54:280 55:1126 56:11 57:317 58:2360 59:1362 60:1174 61:3111 62:3115 63:1753 64:6239 65:2118 66:6004 67:3260 68:1500 69:4212 70:1047 71:613 72:3120 74:2988 75:1496 76:592 77:2865 78:1910 79:1792 80:2337 81:2200 82:3986 83:1442 84:2041 85:3811 86:1102 87:2275 88:1353 89:4681 90:797 91:8433 92:2837 93:3009 94:4311 95:4626 96:1442 97:312 98:948 99:802 100:68 101:1607 102:4467 103:33045 104:5465 105:814 106:924 107:2851 108:1220 109:4217 110:2298 111:4069 112:3151 113:1981 114:2181 115:2279 116:2191 117:3432 118:3001 119:2069 120:2682 121:1508 122:2984 123:2258 124:1667 125:3009 126:125 128:1663 129:957 130:1586 131:2463 132:799 133:463 134:1645 135:586 136:1594 137:1343 138:3161 139:1638 140:1785 141:1586 142:2556 143:2146 144:1740 145:632 146:2197 147:2154 148:2739 149:3062 150:1334 151:2707 152:2247 153:954 154:9548 155:2307 156:4362 157:2267 158:1491 159:2773 160:3840 161:1951 162:4014 163:2396 164:2036 165:2628 166:1298 167:2250 168:3972 169:888 170:5546 171:1105 172:4594 173:3459 174:883 175:1369 176:3827 177:4800 178:4327 179:2291 180:3144 181:4453 182:4012 183:2818 184:2013 185:21781 186:5693 187:4942 188:4567 189:4504 190:9752 191:1573 192:11477 193:9588 194:7839 195:5728 196:3300 197:3323 198:6103 199:6109 200:8067 201:6393 202:10665 203:10630 204:4728 205:3724 206:4480 207:3861 208:4367 209:5385 210:4724 211:2685 212:4998 213:4088 214:1045 215:46 216:7256 217:3536 218:1677 219:420 220:2158 221:1313 222:935 223:3338 End of report