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 20 Dec, 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: 1044026 Prefixes after maximum aggregation (per Origin AS): 395674 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 505925 Number of IPv4 prefixes with a valid ROA: 617468 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 426537 Total ASes present in the Internet Routing Table: 77812 Prefixes per ASN: 13.42 Origin-only ASes present in the Internet Routing Table: 66569 Origin ASes announcing only one prefix: 27093 Transit ASes present in the Internet Routing Table: 11243 Transit-only ASes present in the Internet Routing Table: 570 Paths with bogon ASNs present in the IPv4 Routing Table: 82 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 69 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 950 Number of instances of unregistered ASNs: 999 Number of 32-bit ASNs allocated by the RIRs: 48255 Number of 32-bit ASNs visible in the Routing Table: 39571 Prefixes from 32-bit ASNs in the Routing Table: 222475 Number of bogon 32-bit ASNs visible in the Routing Table: 110 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 650 Number of addresses announced to Internet: 3110511527 Equivalent to 185 /8s, 102 /16s and 163 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 339623 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 287977 Total APNIC prefixes after maximum aggregation: 81835 APNIC Deaggregation factor: 3.52 Prefixes being announced from the APNIC address blocks: 274828 Unique aggregates announced from the APNIC address blocks: 106843 APNIC Region origin ASes present in the Internet Routing Table: 15042 APNIC Prefixes per ASN: 18.27 APNIC Region origin ASes announcing only one prefix: 4579 APNIC Region transit ASes present in the Internet Routing Table: 2029 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 41 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10542 Number of APNIC addresses announced to Internet: 758425666 Equivalent to 45 /8s, 52 /16s and 168 /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: 302836 Total ARIN prefixes after maximum aggregation: 134912 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 303022 Unique aggregates announced from the ARIN address blocks: 145613 ARIN Region origin ASes present in the Internet Routing Table: 19395 ARIN Prefixes per ASN: 15.62 ARIN Region origin ASes announcing only one prefix: 7072 ARIN Region transit ASes present in the Internet Routing Table: 1998 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5427 Number of ARIN addresses announced to Internet: 1343012608 Equivalent to 80 /8s, 12 /16s and 191 /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: 287029 Total RIPE prefixes after maximum aggregation: 140321 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 287721 Unique aggregates announced from the RIPE address blocks: 184002 RIPE Region origin ASes present in the Internet Routing Table: 29166 RIPE Prefixes per ASN: 9.86 RIPE Region origin ASes announcing only one prefix: 12078 RIPE Region transit ASes present in the Internet Routing Table: 4049 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12911 Number of RIPE addresses announced to Internet: 735258369 Equivalent to 43 /8s, 211 /16s and 39 /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: 128219 Total LACNIC prefixes after maximum aggregation: 30912 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 123921 Unique aggregates announced from the LACNIC address blocks: 49731 LACNIC Region origin ASes present in the Internet Routing Table: 11335 LACNIC Prefixes per ASN: 10.93 LACNIC Region origin ASes announcing only one prefix: 2656 LACNIC Region transit ASes present in the Internet Routing Table: 2567 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9335 Number of LACNIC addresses announced to Internet: 170462560 Equivalent to 10 /8s, 41 /16s and 13 /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: 37015 Total AfriNIC prefixes after maximum aggregation: 7045 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 53883 Unique aggregates announced from the AfriNIC address blocks: 19236 AfriNIC Region origin ASes present in the Internet Routing Table: 1990 AfriNIC Prefixes per ASN: 27.08 AfriNIC Region origin ASes announcing only one prefix: 708 AfriNIC Region transit ASes present in the Internet Routing Table: 391 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 65 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1356 Number of AfriNIC addresses announced to Internet: 103029760 Equivalent to 6 /8s, 36 /16s and 28 /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 13471 8888 173 CHINAMOBILE-CN China Mobile Communication 7545 6033 833 577 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4936 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4628 542 340 BBIL-AP BHARTI Airtel Ltd., IN 45899 4408 1873 53 VNPT-AS-VN VNPT Corp, VN 18403 4334 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4042 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3729 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3517 852 236 CMNET-JIANGSU-AP China Mobile communicati 24560 2955 865 496 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 14056 38462 5452 AMAZON-02, US 22773 4776 3115 366 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4687 311 949 CABLEONE, US 174 4450 8769 860 COGENT-174, US 7155 3866 287 87 VIASAT-SP-BACKBONE, US 6327 3691 1320 83 SHAW, CA 396982 3316 4867 490 GOOGLE-CLOUD-PLATFORM, US 749 3143 54729 2394 DNIC-AS-00749, US 16625 2877 1232 2149 AKAMAI-AS, US 36352 2820 229 906 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 7294 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 3948 369 2257 M247, RO 20940 3866 3395 136 AKAMAI-ASN1, NL 12389 3183 2317 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2563 182 1861 CDNEXT, GB 34984 2420 363 574 TELLCOM-AS, TR 5384 2389 585 28 EMIRATES-INTERNET Emirates Internet, AE 8452 1689 1852 14 TE-AS TE-AS, EG 203020 1617 242 783 HOSTROYALE, IN 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 12637 3277 590 UNINET, MX 10620 3434 457 1108 Telmex Colombia S.A., CO 13999 2493 507 353 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 28573 1369 2429 273 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1261 371 22 Telefonica del Peru S.A.A., PE 22884 1057 67 359 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1025 2486 56 TIM SA, BR 18881 907 1127 31 TELEFONICA BRASIL S.A, BR 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 1927 368 14 RAYA-AS, EG 36992 1824 1531 424 ETISALAT-MISR, EG 24863 1261 389 16 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 37069 1083 1084 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 36935 1046 520 31 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 563 82 3 KENET-AS, KE 15399 561 58 60 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 14056 38462 5452 AMAZON-02, US 9808 13471 8888 173 CHINAMOBILE-CN China Mobile Communication 8151 12637 3277 590 UNINET, MX 12479 7294 1711 149 UNI2-AS, ES 7545 6033 833 577 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4936 4192 76 ERX-CERNET-BKB China Education and Resear 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4776 3115 366 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4687 311 949 CABLEONE, US 9498 4628 542 340 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13471 13298 CHINAMOBILE-CN China Mobile Communications Grou 8151 12637 12047 UNINET, MX 12479 7294 7145 UNI2-AS, ES 7545 6033 5456 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4936 4860 ERX-CERNET-BKB China Education and Research Net 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4776 4410 ASN-CXA-ALL-CCI-22773-RDC, US 45899 4408 4355 VNPT-AS-VN VNPT Corp, VN 18403 4334 4310 FPT-AS-AP FPT Telecom Company, VN 9498 4628 4288 BBIL-AP BHARTI Airtel Ltd., IN 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 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 10.2.3.8/30 21996 GUAMCELL, US 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 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 23.140.180.0/24 Origin: 401371 DEEP-TO-ONE-INC, US 23.140.180.0/24 Transit: 154309 INTELLIGENT1-AS-AP Intelligent Cloud Lim 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 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 /11:93 /12:300 /13:582 /14:1209 /15:2119 /16:13827 /17:8464 /18:14217 /19:25632 /20:46867 /21:53601 /22:115086 /23:108974 /24:652183 /25:146 /26:112 /27:116 /28:40 /29:66 /30:10 /31:3 /32:308 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6842 12637 UNINET, MX 12479 6225 7294 UNI2-AS, ES 11492 3532 4687 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3478 3691 SHAW, CA 22773 3048 4776 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2825 3866 VIASAT-SP-BACKBONE, US 16509 2454 14056 AMAZON-02, US 30036 2322 2665 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2214 3434 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) ---------------------------------------------- 1:2504 2:1611 3:979 4:12 5:5076 6:186 7:6 8:1537 9:9 11:172 12:1224 13:607 14:2678 15:416 16:289 17:387 18:915 20:603 21:4 22:188 23:8117 24:2613 25:2 27:2858 29:19 31:3479 32:35 33:1 34:85 35:291 36:4632 37:4563 38:11123 39:1215 40:440 41:4607 42:1960 43:3006 44:412 45:19854 46:5202 47:415 49:2190 50:2062 51:597 52:1312 54:225 55:1128 56:11 57:309 58:2406 59:1412 60:1202 61:3284 62:3135 63:1752 64:6015 65:2125 66:5943 67:3247 68:1507 69:4270 70:1021 71:626 72:3041 74:2944 75:1517 76:597 77:2767 78:1928 79:1807 80:2336 81:2114 82:3908 83:1518 84:2026 85:3649 86:1197 87:2368 88:1363 89:4615 90:837 91:8476 92:2905 93:3035 94:4401 95:4575 96:1471 97:312 98:951 99:780 100:68 101:1352 102:4499 103:32746 104:5497 105:1020 106:937 107:2817 108:1218 109:4312 110:2315 111:4049 112:2846 113:1953 114:2114 115:2379 116:2228 117:3193 118:3012 119:2192 120:2471 121:1593 122:2993 123:2621 124:1755 125:2984 126:125 128:1594 129:967 130:1558 131:2310 132:769 133:462 134:1646 135:539 136:1507 137:1240 138:3054 139:1677 140:1793 141:1573 142:2406 143:2116 144:1386 145:625 146:2197 147:2147 148:2785 149:3003 150:1332 151:2600 152:2265 153:872 154:9659 155:2291 156:4592 157:2255 158:1477 159:2729 160:3776 161:2001 162:4005 163:2345 164:1967 165:2634 166:1313 167:2198 168:3983 169:823 170:5515 171:1127 172:4534 173:3434 174:900 175:1375 176:3776 177:4880 178:4318 179:2353 180:2919 181:4484 182:3890 183:2652 184:2074 185:21800 186:5793 187:4832 188:4474 189:4533 190:9814 191:1567 192:11490 193:9538 194:8009 195:5805 196:3315 197:3275 198:6098 199:6112 200:8285 201:6463 202:10987 203:10887 204:4641 205:3718 206:4480 207:3833 208:4376 209:5477 210:5124 211:2889 212:4962 213:4069 214:1065 215:54 216:7161 217:3598 218:1679 219:628 220:2198 221:1295 222:1036 223:3283 End of report