IPv4 R&E Routing Table Report 23:00 GMT Sat 02 May, 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: 1044435 Prefixes after maximum aggregation (per Origin AS): 400247 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 515527 Number of IPv4 prefixes with a valid ROA: 631097 Number of IPv4 prefixes with an invalid ROA: 875 Number of IPv4 prefixes with no ROA: 412463 Total ASes present in the Internet Routing Table: 78286 Prefixes per ASN: 13.34 Origin-only ASes present in the Internet Routing Table: 67096 Origin ASes announcing only one prefix: 27356 Transit ASes present in the Internet Routing Table: 11190 Transit-only ASes present in the Internet Routing Table: 595 Paths with bogon ASNs present in the IPv4 Routing Table: 40 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 216 Max AS path prepend of ASN (205624) 211 Prefixes from unregistered ASNs in the Routing Table: 997 Number of instances of unregistered ASNs: 1026 Number of 32-bit ASNs allocated by the RIRs: 49605 Number of 32-bit ASNs visible in the Routing Table: 40462 Prefixes from 32-bit ASNs in the Routing Table: 229033 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 418 Number of addresses announced to Internet: 3103363328 Equivalent to 184 /8s, 249 /16s and 145 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 340350 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 285158 Total APNIC prefixes after maximum aggregation: 82596 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 271424 Unique aggregates announced from the APNIC address blocks: 107719 APNIC Region origin ASes present in the Internet Routing Table: 15137 APNIC Prefixes per ASN: 17.93 APNIC Region origin ASes announcing only one prefix: 4599 APNIC Region transit ASes present in the Internet Routing Table: 2052 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10735 Number of APNIC addresses announced to Internet: 747640576 Equivalent to 44 /8s, 144 /16s and 23 /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: 303156 Total ARIN prefixes after maximum aggregation: 136306 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 302461 Unique aggregates announced from the ARIN address blocks: 147460 ARIN Region origin ASes present in the Internet Routing Table: 19398 ARIN Prefixes per ASN: 15.59 ARIN Region origin ASes announcing only one prefix: 7115 ARIN Region transit ASes present in the Internet Routing Table: 1891 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 216 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5557 Number of ARIN addresses announced to Internet: 1348222976 Equivalent to 80 /8s, 92 /16s and 64 /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, 393216-404380 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: 289275 Total RIPE prefixes after maximum aggregation: 142951 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 292307 Unique aggregates announced from the RIPE address blocks: 190575 RIPE Region origin ASes present in the Internet Routing Table: 29414 RIPE Prefixes per ASN: 9.94 RIPE Region origin ASes announcing only one prefix: 12199 RIPE Region transit ASes present in the Internet Routing Table: 4073 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13346 Number of RIPE addresses announced to Internet: 733114624 Equivalent to 43 /8s, 178 /16s and 113 /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: 128628 Total LACNIC prefixes after maximum aggregation: 30797 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 123126 Unique aggregates announced from the LACNIC address blocks: 50317 LACNIC Region origin ASes present in the Internet Routing Table: 11386 LACNIC Prefixes per ASN: 10.81 LACNIC Region origin ASes announcing only one prefix: 2707 LACNIC Region transit ASes present in the Internet Routing Table: 2585 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: 9434 Number of LACNIC addresses announced to Internet: 169965568 Equivalent to 10 /8s, 33 /16s and 120 /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: 37221 Total AfriNIC prefixes after maximum aggregation: 6982 AfriNIC Deaggregation factor: 5.33 Prefixes being announced from the AfriNIC address blocks: 54699 Unique aggregates announced from the AfriNIC address blocks: 19093 AfriNIC Region origin ASes present in the Internet Routing Table: 2024 AfriNIC Prefixes per ASN: 27.03 AfriNIC Region origin ASes announcing only one prefix: 736 AfriNIC Region transit ASes present in the Internet Routing Table: 383 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1390 Number of AfriNIC addresses announced to Internet: 104225024 Equivalent to 6 /8s, 54 /16s and 89 /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 13863 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5883 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4936 552 322 BBIL-AP BHARTI Airtel Ltd., IN 18403 4546 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4057 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3705 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3538 887 177 CMNET-JIANGSU-AP China Mobile communicati 17561 3476 219 564 LCS-AS-AP LARUS Limited, HK 45899 3365 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2901 813 659 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 14840 41289 5687 AMAZON-02 - Amazon.com, Inc., US 22773 4782 3116 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4653 309 1047 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3726 1305 75 SHAW - Shaw Communications, CA 174 3407 8770 846 COGENT-174 - Cogent Communications, LLC, 396982 3336 4864 505 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2720 222 904 AS-COLOCROSSING - HostPapa, US 7029 2636 2561 922 WINDSTREAM - Windstream Communications LL 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 7171 1711 149 UNI2-AS, ES 39891 4943 305 72 ALJAWWALSTC-AS, SA 9009 3860 355 2265 M247, RO 20940 3792 3389 110 AKAMAI-ASN1, NL 12389 3141 2321 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2758 201 2033 CDNEXT, GB 34984 2450 365 578 TELLCOM-AS, TR 8452 1725 1852 14 TE-AS TE-AS, EG 203020 1655 252 831 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12844 3293 629 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2432 506 350 Mega Cable, S.A. de C.V., MX 11830 1934 369 65 Instituto Costarricense de Electricidad y 11664 1446 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1375 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1229 379 23 INTEGRATEL PERU S.A.A., PE 22884 1071 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1068 2392 100 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 2027 649 36 RAYA-AS, EG 36992 1859 1533 336 ETISALAT-MISR, EG 24863 1271 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1225 520 41 Vodafone-, EG 37069 1117 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 328608 562 53 158 Africa-on-Cloud-AS, ZA 15399 553 57 58 WANANCHI-, 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 14840 41289 5687 AMAZON-02 - Amazon.com, Inc., US 9808 13863 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12844 3293 629 UNINET, MX 12479 7171 1711 149 UNI2-AS, ES 7545 5883 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 305 72 ALJAWWALSTC-AS, SA 9498 4936 552 322 BBIL-AP BHARTI Airtel Ltd., IN 22773 4782 3116 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4653 309 1047 CABLEONE - CABLE ONE, INC., US 18403 4546 347 26 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 13863 13742 CHINAMOBILE-CN China Mobile Communications Grou 8151 12844 12215 UNINET, MX 12479 7171 7022 UNI2-AS, ES 7545 5883 5400 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4936 4614 BBIL-AP BHARTI Airtel Ltd., IN 18403 4546 4520 FPT-AS-AP FPT Telecom Company, VN 22773 4782 4417 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4057 4029 VIETEL-AS-AP Viettel Group, VN 7155 3870 3780 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 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 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 /10:39 /11:95 /12:297 /13:581 /14:1185 /15:2096 /16:13589 /17:8253 /18:13276 /19:25421 /20:45696 /21:52377 /22:113557 /23:107526 /24:660417 /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 7045 12844 UNINET, MX 12479 6112 7171 UNI2-AS, ES 39891 3628 4943 ALJAWWALSTC-AS, SA 11492 3517 4653 CABLEONE - CABLE ONE, INC., US 6327 3507 3726 SHAW - Shaw Communications, CA 22773 3054 4782 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2669 14840 AMAZON-02 - Amazon.com, Inc., US 30036 2275 2621 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 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 2:2010 3:1010 4:5 5:5156 6:199 7:6 8:1490 9:43 11:172 12:1183 13:700 14:2702 15:463 16:208 17:441 18:920 20:589 21:4 22:188 23:8167 24:2781 25:2 27:2806 28:1 29:19 31:3484 32:36 34:90 35:284 36:4758 37:4435 38:10180 39:1294 40:438 41:4550 42:2165 43:3157 44:448 45:19851 46:4853 47:439 48:127 49:2349 50:2015 51:693 52:1326 54:290 55:1201 56:11 57:321 58:2361 59:1385 60:1175 61:3163 62:3124 63:1700 64:6374 65:2137 66:6104 67:3266 68:1498 69:4212 70:1058 71:607 72:3183 74:3042 75:1501 76:589 77:2907 78:1998 79:1795 80:2345 81:2232 82:4144 83:1447 84:2138 85:3832 86:1087 87:2473 88:1333 89:4796 90:810 91:8456 92:2812 93:3014 94:4393 95:4713 96:1452 97:315 98:943 99:832 100:70 101:1624 102:4526 103:33010 104:5376 105:856 106:901 107:2891 108:1249 109:4230 110:2290 111:4126 112:3175 113:1974 114:2284 115:2310 116:2162 117:3490 118:3041 119:2082 120:2710 121:1542 122:2987 123:2291 124:1708 125:3032 126:126 128:1570 129:956 130:1643 131:2468 132:882 133:486 134:1670 135:605 136:1542 137:1346 138:3341 139:1616 140:1760 141:1735 142:2546 143:2090 144:1777 145:637 146:2185 147:2238 148:2798 149:3200 150:1385 151:2910 152:2556 153:1491 154:10220 155:2308 156:4910 157:2387 158:1574 159:2862 160:3835 161:1964 162:4045 163:2540 164:2431 165:2671 166:1277 167:2310 168:4008 169:872 170:5575 171:1134 172:4739 173:3460 174:880 175:1365 176:3861 177:4861 178:4320 179:2327 180:3200 181:4564 182:4022 183:2832 184:2007 185:21808 186:6071 187:4999 188:4555 189:4557 190:9848 191:1664 192:11460 193:9620 194:7879 195:5812 196:3365 197:3344 198:6115 199:6065 200:8101 201:6407 202:10650 203:10639 204:4779 205:3677 206:4598 207:3852 208:4374 209:5421 210:4731 211:2688 212:5074 213:4101 214:1044 215:47 216:7287 217:3599 218:1700 219:416 220:2191 221:1344 222:938 223:3445 End of report