IPv4 R&E Routing Table Report 23:05 GMT Fri 03 Feb, 2023 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: 903336 Prefixes after maximum aggregation (per Origin AS): 344347 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 445545 Number of IPv4 prefixes with a valid ROA: 371323 Number of IPv4 prefixes with an invalid ROA: 1504 Number of IPv4 prefixes with no ROA: 530509 Total ASes present in the Internet Routing Table: 73899 Prefixes per ASN: 12.22 Origin-only ASes present in the Internet Routing Table: 63478 Origin ASes announcing only one prefix: 26107 Transit ASes present in the Internet Routing Table: 10421 Transit-only ASes present in the Internet Routing Table: 435 Paths with bogon ASNs present in the IPv4 Routing Table: 26 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 954 Number of instances of unregistered ASNs: 964 Number of 32-bit ASNs allocated by the RIRs: 41182 Number of 32-bit ASNs visible in the Routing Table: 34052 Prefixes from 32-bit ASNs in the Routing Table: 166223 Number of bogon 32-bit ASNs visible in the Routing Table: 26 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 516 Number of addresses announced to Internet: 3061199104 Equivalent to 182 /8s, 118 /16s and 49 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 303792 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 233949 Total APNIC prefixes after maximum aggregation: 68081 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 229021 Unique aggregates announced from the APNIC address blocks: 97747 APNIC Region origin ASes present in the Internet Routing Table: 13171 APNIC Prefixes per ASN: 17.39 APNIC Region origin ASes announcing only one prefix: 3816 APNIC Region transit ASes present in the Internet Routing Table: 1770 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8504 Number of APNIC addresses announced to Internet: 772897280 Equivalent to 46 /8s, 17 /16s and 122 /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, 131072-151865 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: 265865 Total ARIN prefixes after maximum aggregation: 120911 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 267829 Unique aggregates announced from the ARIN address blocks: 129949 ARIN Region origin ASes present in the Internet Routing Table: 19011 ARIN Prefixes per ASN: 14.09 ARIN Region origin ASes announcing only one prefix: 6992 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: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4721 Number of ARIN addresses announced to Internet: 1285528832 Equivalent to 76 /8s, 159 /16s and 157 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 256111 Total RIPE prefixes after maximum aggregation: 120593 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 252511 Unique aggregates announced from the RIPE address blocks: 156308 RIPE Region origin ASes present in the Internet Routing Table: 28205 RIPE Prefixes per ASN: 8.95 RIPE Region origin ASes announcing only one prefix: 12030 RIPE Region transit ASes present in the Internet Routing Table: 3987 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10994 Number of RIPE addresses announced to Internet: 718312704 Equivalent to 42 /8s, 208 /16s and 149 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 117485 Total LACNIC prefixes after maximum aggregation: 28307 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 116661 Unique aggregates announced from the LACNIC address blocks: 49110 LACNIC Region origin ASes present in the Internet Routing Table: 10991 LACNIC Prefixes per ASN: 10.61 LACNIC Region origin ASes announcing only one prefix: 2669 LACNIC Region transit ASes present in the Internet Routing Table: 2264 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8773 Number of LACNIC addresses announced to Internet: 176099584 Equivalent to 10 /8s, 127 /16s and 17 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 28972 Total AfriNIC prefixes after maximum aggregation: 5719 AfriNIC Deaggregation factor: 5.07 Prefixes being announced from the AfriNIC address blocks: 36798 Unique aggregates announced from the AfriNIC address blocks: 12011 AfriNIC Region origin ASes present in the Internet Routing Table: 1710 AfriNIC Prefixes per ASN: 21.52 AfriNIC Region origin ASes announcing only one prefix: 600 AfriNIC Region transit ASes present in the Internet Routing Table: 329 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1060 Number of AfriNIC addresses announced to Internet: 108042752 Equivalent to 6 /8s, 112 /16s and 154 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9440 8883 47 CHINAMOBILE-CN China Mobile Communicati 7545 5875 786 703 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3637 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3522 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3372 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2725 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2363 847 437 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2283 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2164 440 213 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 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 7871 10721 2913 AMAZON-02, US 11492 4533 300 601 CABLEONE, US 7155 3899 265 33 VIASAT-SP-BACKBONE, US 22773 3663 3065 295 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3503 1320 63 SHAW, CA 16625 3322 1681 2424 AKAMAI-AS, US 749 3037 50571 2304 DNIC-AS-00749, US 396982 2589 3496 365 GOOGLE-CLOUD-PLATFORM, US 7018 2585 24125 1567 ATT-INTERNET4, US 30036 2567 367 353 MEDIACOM-ENTERPRISE-BUSINESS, 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 6986 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4035 3399 169 AKAMAI-ASN1, NL 8551 3895 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2890 2290 908 ROSTELECOM-AS, RU 9009 2703 256 1370 M247, RO 34984 2259 359 608 TELLCOM-AS, TR 6849 2197 339 19 UKRTELNET, UA 58224 1837 946 556 TCI, IR 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 11072 3346 587 Uninet S.A. de C.V., MX 10620 3479 508 859 Telmex Colombia S.A., CO 11830 2263 369 64 Instituto Costarricense de Electricidad 13999 2238 371 602 Mega Cable, S.A. de C.V., MX 28573 1353 2328 263 Claro NXT Telecomunicacoes Ltda, BR 6503 1298 339 518 Axtel, S.A.B. de C.V., MX 3816 1290 742 155 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1151 369 22 Telefonica del Peru S.A.A., PE 11664 1105 181 462 Techtel LMDS Comunicaciones Interactiva 26615 1018 2466 43 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 1539 533 30 RAYA-AS, EG 24863 1501 393 21 LINKdotNET-AS, EG 36992 1347 1517 277 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 996 67 53 ORANGE-COTE-IVOIRE, CI 36935 884 520 42 Vodafone-, EG 6713 549 1861 34 IAM-AS, MA 15399 527 54 46 WANANCHI-, KE 24757 491 73 5 EthioNet-AS, ET 37342 455 32 1 MOVITEL, MZ 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 8151 11072 3346 587 Uninet S.A. de C.V., MX 9808 9440 8883 47 CHINAMOBILE-CN China Mobile Communicati 16509 7871 10721 2913 AMAZON-02, US 12479 6986 1706 146 UNI2-AS, ES 7545 5875 786 703 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4533 300 601 CABLEONE, US 20940 4035 3399 169 AKAMAI-ASN1, NL 7155 3899 265 33 VIASAT-SP-BACKBONE, US 8551 3895 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 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 9440 9393 CHINAMOBILE-CN China Mobile Communications Grou 12479 6986 6840 UNI2-AS, ES 7545 5875 5172 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7871 4958 AMAZON-02, US 39891 4561 4503 ALJAWWALSTC-AS, SA 11492 4533 3932 CABLEONE, US 20940 4035 3866 AKAMAI-ASN1, NL 7155 3899 3866 VIASAT-SP-BACKBONE, US 8551 3895 3858 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3637 3616 VIETEL-AS-AP Viettel Group, VN 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 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.12.76.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.14.115.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 25674 UNALLOCATED 8.19.146.0/24 3356 LEVEL3, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /9:13 /10:38 /11:101 /12:295 /13:578 /14:1198 /15:2075 /16:13462 /17:8226 /18:13745 /19:24694 /20:42874 /21:50808 /22:108722 /23:96744 /24:539738 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6049 6986 UNI2-AS, ES 8151 5080 11072 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3448 4533 CABLEONE, US 8551 3367 3895 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3311 3503 SHAW, CA 7155 2988 3899 VIASAT-SP-BACKBONE, US 22773 2709 3663 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2224 2567 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2049 2197 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1623 2:1222 3:168 4:5 5:4244 6:113 7:5 8:1514 9:1 11:172 12:1589 13:376 14:2350 15:287 16:79 17:366 18:394 20:243 21:4 22:188 23:6046 24:2483 25:4 27:2641 29:19 31:2500 32:106 34:9 35:104 36:1907 37:4588 38:4074 39:836 40:154 41:3910 42:1052 43:2304 44:302 45:16391 46:4113 47:374 49:1732 50:1833 51:382 52:1551 54:395 55:855 56:8 57:80 58:1675 59:1112 60:993 61:2424 62:2618 63:1932 64:5651 65:2310 66:4906 67:3040 68:1348 69:4136 70:1251 71:660 72:2968 74:2588 75:1457 76:595 77:2387 78:1829 79:3172 80:2076 81:1709 82:1484 83:1235 84:1499 85:2990 86:750 87:1947 88:1212 89:3565 90:595 91:7637 92:2005 93:2584 94:3524 95:3925 96:1330 97:346 98:1159 99:741 100:75 101:1299 102:2564 103:30842 104:4559 105:483 106:847 107:2511 108:896 109:4346 110:2072 111:3291 112:2039 113:1479 114:1601 115:2013 116:1877 117:2554 118:2291 119:1874 120:1739 121:1051 122:2584 123:2136 124:1561 125:2291 128:1253 129:1042 130:973 131:1977 132:829 133:406 134:1907 135:297 136:865 137:924 138:2563 139:1546 140:1177 141:1468 142:1416 143:1489 144:1195 145:351 146:1858 147:1548 148:2270 149:1881 150:868 151:1139 152:1944 153:480 154:3899 155:1397 156:1662 157:1294 158:1004 159:2263 160:2545 161:1418 162:3513 163:1479 164:1610 165:1658 166:830 167:1753 168:3843 169:913 170:4568 171:882 172:3507 173:2956 174:1023 175:1166 176:3680 177:4605 178:3554 179:2164 180:2399 181:3379 182:3241 183:1935 184:2338 185:19998 186:4663 187:3957 188:4058 189:3505 190:9088 191:1437 192:10927 193:8802 194:7226 195:5110 196:3085 197:2362 198:5886 199:6075 200:7672 201:5864 202:10210 203:10002 204:4583 205:3496 206:3796 207:3351 208:4067 209:4785 210:4158 211:2384 212:4071 213:3543 214:1092 215:56 216:6590 217:2645 218:1256 219:400 220:1772 221:968 222:664 223:2054 End of report