This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 14 Jun, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1013667 Prefixes after maximum aggregation (per Origin AS): 381900 Deaggregation factor: 2.65 Unique aggregates announced (without unneeded subnets): 482889 Number of IPv4 prefixes with a valid ROA: 563976 Number of IPv4 prefixes with an invalid ROA: 18 Number of IPv4 prefixes with no ROA: 449673 Total ASes present in the Internet Routing Table: 77065 Prefixes per ASN: 13.15 Origin-only ASes present in the Internet Routing Table: 65947 Origin ASes announcing only one prefix: 26710 Transit ASes present in the Internet Routing Table: 11118 Transit-only ASes present in the Internet Routing Table: 574 Paths with bogon ASNs present in the IPv4 Routing Table: 60 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 57 Max AS path prepend of ASN ( 24691) 51 Prefixes from unregistered ASNs in the Routing Table: 1131 Number of instances of unregistered ASNs: 1164 Number of 32-bit ASNs allocated by the RIRs: 46645 Number of 32-bit ASNs visible in the Routing Table: 38426 Prefixes from 32-bit ASNs in the Routing Table: 209331 Number of bogon 32-bit ASNs visible in the Routing Table: 82 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 304 Number of addresses announced to Internet: 3115389504 Equivalent to 185 /8s, 177 /16s and 18 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 331037 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 271405 Total APNIC prefixes after maximum aggregation: 78134 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 262819 Unique aggregates announced from the APNIC address blocks: 104729 APNIC Region origin ASes present in the Internet Routing Table: 14725 APNIC Prefixes per ASN: 17.85 APNIC Region origin ASes announcing only one prefix: 4457 APNIC Region transit ASes present in the Internet Routing Table: 1995 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 40 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10185 Number of APNIC addresses announced to Internet: 754345024 Equivalent to 44 /8s, 246 /16s and 100 /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: 294017 Total ARIN prefixes after maximum aggregation: 131358 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 295779 Unique aggregates announced from the ARIN address blocks: 139562 ARIN Region origin ASes present in the Internet Routing Table: 19233 ARIN Prefixes per ASN: 15.38 ARIN Region origin ASes announcing only one prefix: 7015 ARIN Region transit ASes present in the Internet Routing Table: 1996 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5224 Number of ARIN addresses announced to Internet: 1352750080 Equivalent to 80 /8s, 161 /16s and 84 /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: 280854 Total RIPE prefixes after maximum aggregation: 135025 RIPE Deaggregation factor: 2.08 Prefixes being announced from the RIPE address blocks: 279511 Unique aggregates announced from the RIPE address blocks: 175827 RIPE Region origin ASes present in the Internet Routing Table: 28973 RIPE Prefixes per ASN: 9.65 RIPE Region origin ASes announcing only one prefix: 12038 RIPE Region transit ASes present in the Internet Routing Table: 4027 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 56 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12514 Number of RIPE addresses announced to Internet: 731362496 Equivalent to 43 /8s, 151 /16s and 180 /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: 129470 Total LACNIC prefixes after maximum aggregation: 29892 LACNIC Deaggregation factor: 4.33 Prefixes being announced from the LACNIC address blocks: 125666 Unique aggregates announced from the LACNIC address blocks: 48948 LACNIC Region origin ASes present in the Internet Routing Table: 11272 LACNIC Prefixes per ASN: 11.15 LACNIC Region origin ASes announcing only one prefix: 2525 LACNIC Region transit ASes present in the Internet Routing Table: 2528 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 57 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9218 Number of LACNIC addresses announced to Internet: 171834432 Equivalent to 10 /8s, 61 /16s and 252 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 36790 Total AfriNIC prefixes after maximum aggregation: 6738 AfriNIC Deaggregation factor: 5.46 Prefixes being announced from the AfriNIC address blocks: 49588 Unique aggregates announced from the AfriNIC address blocks: 13546 AfriNIC Region origin ASes present in the Internet Routing Table: 1922 AfriNIC Prefixes per ASN: 25.80 AfriNIC Region origin ASes announcing only one prefix: 675 AfriNIC Region transit ASes present in the Internet Routing Table: 381 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 32 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1285 Number of AfriNIC addresses announced to Internet: 104938496 Equivalent to 6 /8s, 65 /16s and 60 /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 11227 8918 157 CHINAMOBILE-CN China Mobile Communication 7545 6161 846 640 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4851 4192 75 ERX-CERNET-BKB China Education and Resear 18403 4426 347 25 FPT-AS-AP FPT Telecom Company, VN 45899 4367 1874 56 VNPT-AS-VN VNPT Corp, VN 9498 4314 534 306 BBIL-AP BHARTI Airtel Ltd., IN 7552 3945 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3697 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 24560 2886 856 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2295 831 217 CMNET-JIANGSU-AP China Mobile communicati Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13691 40940 5243 AMAZON-02, US 174 5362 8745 880 COGENT-174, US 11492 4762 316 595 CABLEONE, US 7155 3876 287 89 VIASAT-SP-BACKBONE, US 6327 3636 1320 81 SHAW, CA 22773 3346 3016 167 ASN-CXA-ALL-CCI-22773-RDC, US 749 3230 54783 2481 DNIC-AS-00749, US 396982 3186 3854 426 GOOGLE-CLOUD-PLATFORM, US 16625 3023 1261 2224 AKAMAI-AS, US 36352 2816 230 856 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7696 1713 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3978 3395 139 AKAMAI-ASN1, NL 9009 3891 358 2092 M247, RO 12389 3109 2304 886 ROSTELECOM-AS PJSC Rostelecom. Technical 5384 2416 585 29 EMIRATES-INTERNET Emirates Internet, AE 34984 2402 361 579 TELLCOM-AS, TR 212238 2242 164 1632 CDNEXT, GB 8452 1621 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12196 3254 578 UNINET, MX 10620 3502 481 1019 Telmex Colombia S.A., CO 13999 2491 541 357 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1372 2436 260 Claro NXT Telecomunicacoes Ltda, BR 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1201 371 22 Telefonica del Peru S.A.A., PE 22884 1064 68 376 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1036 2503 52 TIM SA, BR 6503 1019 372 161 Axtel, S.A.B. de C.V., MX Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1820 644 27 RAYA-AS, EG 24863 1634 389 17 LINKdotNET-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1066 523 47 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 561 82 3 KENET-AS, KE 15399 540 57 59 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13691 40940 5243 AMAZON-02, US 8151 12196 3254 578 UNINET, MX 9808 11227 8918 157 CHINAMOBILE-CN China Mobile Communication 12479 7696 1713 148 UNI2-AS, ES 7545 6161 846 640 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5362 8745 880 COGENT-174, US 4538 4851 4192 75 ERX-CERNET-BKB China Education and Resear 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4762 316 595 CABLEONE, US 18403 4426 347 25 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 12196 11618 UNINET, MX 9808 11227 11070 CHINAMOBILE-CN China Mobile Communications Grou 12479 7696 7548 UNI2-AS, ES 7545 6161 5521 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4851 4776 ERX-CERNET-BKB China Education and Research Net 39891 4798 4735 ALJAWWALSTC-AS, SA 174 5362 4482 COGENT-174, US 18403 4426 4401 FPT-AS-AP FPT Telecom Company, VN 45899 4367 4311 VNPT-AS-VN VNPT Corp, VN 11492 4762 4167 CABLEONE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 394804 UNALLOCATED 8.33.225.0/24 3356 LEVEL3, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Guam/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/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, US 23.159.56.0/24 Origin: 174 COGENT-174, US 23.159.56.0/24 Transit: 2914 NTT-DATA-2914, US Complete listing at https://bgp.nsrc.org/REN/Guam/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 /10:41 /11:92 /12:301 /13:585 /14:1225 /15:2181 /16:14018 /17:8522 /18:14502 /19:25456 /20:46124 /21:53471 /22:114385 /23:106902 /24:625095 /25:126 /26:112 /27:98 /28:19 /29:75 /30:8 /31:0 /32:299 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6616 7696 UNI2-AS, ES 8151 6414 12196 UNINET, MX 11492 3559 4762 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3431 3636 SHAW, CA 7155 2834 3876 VIASAT-SP-BACKBONE, US 22773 2497 3346 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2371 13691 AMAZON-02, US 30036 2247 2588 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2189 3502 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2426 2:1611 3:820 4:12 5:4846 6:162 7:6 8:1605 9:1 11:172 12:1346 13:456 14:2592 15:360 16:285 17:380 18:922 20:565 21:4 22:188 23:7627 24:2883 25:2 27:2837 29:19 31:3432 32:46 33:1 34:84 35:257 36:3107 37:4627 38:10571 39:915 40:167 41:4337 42:1990 43:2730 44:385 45:19197 46:5225 47:337 49:1978 50:1891 51:591 52:1569 54:328 55:1090 56:11 57:273 58:2327 59:1322 60:1203 61:3164 62:3035 63:1810 64:5496 65:2182 66:4676 67:3071 68:1126 69:3952 70:1075 71:632 72:2817 74:2809 75:1510 76:616 77:2730 78:1880 79:1738 80:2255 81:2077 82:3171 83:1488 84:1886 85:3463 86:1179 87:2423 88:1344 89:4458 90:772 91:8490 92:2798 93:2949 94:4147 95:4377 96:1467 97:311 98:982 99:696 100:73 101:1450 102:4051 103:32852 104:5138 105:1191 106:1045 107:2667 108:1251 109:4167 110:2278 111:3349 112:2156 113:1857 114:2013 115:2221 116:2145 117:2579 118:2920 119:2031 120:2064 121:1457 122:2923 123:2620 124:1729 125:2917 126:93 128:1682 129:968 130:1317 131:2072 132:788 133:449 134:1531 135:389 136:1354 137:1261 138:2975 139:1669 140:1624 141:1520 142:1902 143:1849 144:1172 145:543 146:2204 147:2107 148:2701 149:2974 150:1280 151:1975 152:2098 153:578 154:7651 155:1755 156:3023 157:1922 158:1327 159:2494 160:3629 161:1904 162:3874 163:2226 164:1882 165:1998 166:1495 167:1982 168:4184 169:798 170:5294 171:1035 172:4463 173:3331 174:918 175:1335 176:3790 177:5208 178:3757 179:2427 180:2717 181:4216 182:3480 183:2178 184:2106 185:21816 186:5440 187:4726 188:4429 189:4412 190:9820 191:1713 192:11341 193:9537 194:8007 195:5770 196:3340 197:3666 198:6135 199:8544 200:8494 201:6468 202:10869 203:10964 204:4562 205:3633 206:4530 207:3540 208:4301 209:5159 210:4938 211:2760 212:4649 213:3771 214:1029 215:48 216:6792 217:3346 218:1426 219:592 220:2091 221:1143 222:977 223:2529 End of report