IPv4 R&E Routing Table Report 23:00 GMT Mon 26 Jan, 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: 1027145 Prefixes after maximum aggregation (per Origin AS): 395237 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 507430 Number of IPv4 prefixes with a valid ROA: 614125 Number of IPv4 prefixes with an invalid ROA: 565 Number of IPv4 prefixes with no ROA: 412455 Total ASes present in the Internet Routing Table: 77731 Prefixes per ASN: 13.21 Origin-only ASes present in the Internet Routing Table: 66614 Origin ASes announcing only one prefix: 27157 Transit ASes present in the Internet Routing Table: 11117 Transit-only ASes present in the Internet Routing Table: 563 Paths with bogon ASNs present in the IPv4 Routing Table: 42 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 209 Max AS path prepend of ASN (214570) 200 Prefixes from unregistered ASNs in the Routing Table: 1074 Number of instances of unregistered ASNs: 1103 Number of 32-bit ASNs allocated by the RIRs: 48505 Number of 32-bit ASNs visible in the Routing Table: 39681 Prefixes from 32-bit ASNs in the Routing Table: 221277 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: 465 Number of addresses announced to Internet: 3106941440 Equivalent to 185 /8s, 48 /16s and 42 /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: 334525 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280593 Total APNIC prefixes after maximum aggregation: 81784 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 266866 Unique aggregates announced from the APNIC address blocks: 106841 APNIC Region origin ASes present in the Internet Routing Table: 14975 APNIC Prefixes per ASN: 17.82 APNIC Region origin ASes announcing only one prefix: 4549 APNIC Region transit ASes present in the Internet Routing Table: 1998 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10558 Number of APNIC addresses announced to Internet: 753757440 Equivalent to 44 /8s, 237 /16s and 109 /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: 300308 Total ARIN prefixes after maximum aggregation: 135287 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 300124 Unique aggregates announced from the ARIN address blocks: 146118 ARIN Region origin ASes present in the Internet Routing Table: 19358 ARIN Prefixes per ASN: 15.50 ARIN Region origin ASes announcing only one prefix: 7074 ARIN Region transit ASes present in the Internet Routing Table: 1912 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5444 Number of ARIN addresses announced to Internet: 1344540928 Equivalent to 80 /8s, 36 /16s and 17 /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: 282679 Total RIPE prefixes after maximum aggregation: 140026 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 284612 Unique aggregates announced from the RIPE address blocks: 184999 RIPE Region origin ASes present in the Internet Routing Table: 29150 RIPE Prefixes per ASN: 9.76 RIPE Region origin ASes announcing only one prefix: 12114 RIPE Region transit ASes present in the Internet Routing Table: 4062 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 209 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12947 Number of RIPE addresses announced to Internet: 734173184 Equivalent to 43 /8s, 194 /16s and 152 /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: 125951 Total LACNIC prefixes after maximum aggregation: 30506 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121811 Unique aggregates announced from the LACNIC address blocks: 49478 LACNIC Region origin ASes present in the Internet Routing Table: 11350 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2678 LACNIC Region transit ASes present in the Internet Routing Table: 2558 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: 9353 Number of LACNIC addresses announced to Internet: 170833664 Equivalent to 10 /8s, 46 /16s and 183 /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: 36540 Total AfriNIC prefixes after maximum aggregation: 6943 AfriNIC Deaggregation factor: 5.26 Prefixes being announced from the AfriNIC address blocks: 53267 Unique aggregates announced from the AfriNIC address blocks: 19600 AfriNIC Region origin ASes present in the Internet Routing Table: 2013 AfriNIC Prefixes per ASN: 26.46 AfriNIC Region origin ASes announcing only one prefix: 742 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: 58 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1379 Number of AfriNIC addresses announced to Internet: 103352064 Equivalent to 6 /8s, 41 /16s and 7 /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 13530 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6021 833 571 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4703 543 338 BBIL-AP BHARTI Airtel Ltd., IN 18403 4433 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4038 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3727 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3422 832 183 CMNET-JIANGSU-AP China Mobile communicati 45899 3327 1868 98 VNPT-AS-VN VNPT Corp, VN 17561 3155 198 615 LCS-AS-AP LARUS Limited, HK 24560 2959 865 505 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 14007 38809 5439 AMAZON-02 - Amazon.com, Inc., US 22773 4779 3100 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4597 305 1063 CABLEONE - CABLE ONE, INC., US 7155 3858 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3699 1321 71 SHAW - Shaw Communications, CA 396982 3331 4868 501 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3156 8768 848 COGENT-174 - Cogent Communications, LLC, 749 3142 54729 2393 DNIC-AS-00749 - United States Department 16625 2819 1209 2121 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2702 222 893 AS-COLOCROSSING - HostPapa, 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 7235 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3909 365 2234 M247, RO 20940 3831 3393 111 AKAMAI-ASN1, NL 12389 3150 2317 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2563 182 1862 CDNEXT, GB 34984 2424 364 576 TELLCOM-AS, TR 8452 1714 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1592 241 766 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 12669 3314 607 UNINET, MX 10620 3444 457 1106 Telmex Colombia S.A., CO 13999 2484 508 351 Mega Cable, S.A. de C.V., MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 28573 1375 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1259 371 22 INTEGRATEL PERU S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1015 2486 56 TIM SA, BR 18881 910 1127 31 TELEFONICA BRASIL S.A, 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 1983 646 33 RAYA-AS, EG 36992 1843 1532 339 ETISALAT-MISR, EG 24863 1282 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1128 521 44 Vodafone-, EG 37069 1117 1112 11 MOBINIL, EG 29571 1070 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 569 82 3 KENET-AS, KE 328608 563 48 174 Africa-on-Cloud-AS, ZA 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 14007 38809 5439 AMAZON-02 - Amazon.com, Inc., US 9808 13530 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12669 3314 607 UNINET, MX 12479 7235 1711 149 UNI2-AS, ES 7545 6021 833 571 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4779 3100 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4703 543 338 BBIL-AP BHARTI Airtel Ltd., IN 11492 4597 305 1063 CABLEONE - CABLE ONE, INC., US 18403 4433 347 24 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 13530 13410 CHINAMOBILE-CN China Mobile Communications Grou 8151 12669 12062 UNINET, MX 12479 7235 7086 UNI2-AS, ES 7545 6021 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4779 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 18403 4433 4409 FPT-AS-AP FPT Telecom Company, VN 9498 4703 4365 BBIL-AP BHARTI Airtel Ltd., IN 7552 4038 4009 VIETEL-AS-AP Viettel Group, VN 7155 3858 3773 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 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent 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 /11:93 /12:302 /13:578 /14:1197 /15:2088 /16:13678 /17:8200 /18:13487 /19:24747 /20:44968 /21:52098 /22:113291 /23:106172 /24:646176 /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 6842 12669 UNINET, MX 12479 6165 7235 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 6327 3479 3699 SHAW - Shaw Communications, CA 11492 3459 4597 CABLEONE - CABLE ONE, INC., US 22773 3049 4779 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2817 3858 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2476 14007 AMAZON-02 - Amazon.com, Inc., US 30036 2308 2652 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2224 3444 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) ---------------------------------------------- 1:2509 2:1522 3:968 4:9 5:5041 6:185 7:6 8:1494 9:14 11:172 12:1226 13:622 14:2636 15:418 16:179 17:392 18:916 20:597 21:4 22:188 23:8126 24:2615 25:2 27:2819 29:19 31:3434 32:31 34:84 35:292 36:4657 37:4501 38:9910 39:1252 40:439 41:4535 42:1957 43:2980 44:415 45:19774 46:4931 47:400 48:38 49:2202 50:2055 51:598 52:1260 54:238 55:1111 56:11 57:307 58:2346 59:1351 60:1172 61:3138 62:3101 63:1767 64:6192 65:2126 66:5992 67:3246 68:1486 69:4191 70:1035 71:616 72:3089 74:2957 75:1513 76:605 77:2741 78:1924 79:1802 80:2300 81:2142 82:4029 83:1470 84:2020 85:3686 86:1105 87:2240 88:1340 89:4651 90:821 91:8402 92:2856 93:3010 94:4285 95:4533 96:1438 97:312 98:952 99:784 100:69 101:1582 102:4362 103:32928 104:5461 105:787 106:918 107:2830 108:1217 109:4223 110:2314 111:4054 112:3123 113:1982 114:2169 115:2256 116:2181 117:3305 118:2999 119:2114 120:2588 121:1517 122:2956 123:2292 124:1653 125:2984 126:125 128:1645 129:933 130:1557 131:2327 132:765 133:461 134:1617 135:539 136:1627 137:1286 138:2983 139:1615 140:1774 141:1565 142:2473 143:2159 144:1576 145:631 146:2193 147:2273 148:2808 149:2943 150:1333 151:2646 152:2272 153:853 154:9650 155:2311 156:4562 157:2258 158:1492 159:2750 160:3653 161:2000 162:4027 163:2330 164:1970 165:2644 166:1289 167:2207 168:3937 169:900 170:5449 171:1116 172:4566 173:3428 174:885 175:1370 176:3761 177:4725 178:4331 179:2284 180:3132 181:4399 182:3904 183:2753 184:2007 185:21684 186:5552 187:4852 188:4618 189:4466 190:9671 191:1522 192:11420 193:9495 194:7840 195:5652 196:3268 197:3289 198:6060 199:6106 200:8046 201:6400 202:10589 203:10615 204:4701 205:3710 206:4350 207:3814 208:4356 209:5404 210:4743 211:2685 212:4961 213:4035 214:1063 215:54 216:7139 217:3455 218:1621 219:421 220:2192 221:1312 222:919 223:3306 End of report