Routing Table Report 04:00 +10GMT Thu 01 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 383088
Prefixes after maximum aggregation: 167252
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188424
Total ASes present in the Internet Routing Table: 39444
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 32454
Origin ASes announcing only one prefix: 15493
Transit ASes present in the Internet Routing Table: 5312
Transit-only ASes present in the Internet Routing Table: 140
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1874
Unregistered ASNs in the Routing Table: 952
Number of 32-bit ASNs allocated by the RIRs: 2017
Number of 32-bit ASNs visible in the Routing Table: 1678
Prefixes from 32-bit ASNs in the Routing Table: 3964
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 89
Number of addresses announced to Internet: 2496377728
Equivalent to 148 /8s, 203 /16s and 179 /24s
Percentage of available address space announced: 67.4
Percentage of allocated address space announced: 67.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 161933
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95065
Total APNIC prefixes after maximum aggregation: 31230
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 91537
Unique aggregates announced from the APNIC address blocks: 38590
APNIC Region origin ASes present in the Internet Routing Table: 4604
APNIC Prefixes per ASN: 19.88
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 721
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 114
Number of APNIC addresses announced to Internet: 630792288
Equivalent to 37 /8s, 153 /16s and 32 /24s
Percentage of available APNIC address space announced: 80.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 146114
Total ARIN prefixes after maximum aggregation: 74617
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118351
Unique aggregates announced from the ARIN address blocks: 48685
ARIN Region origin ASes present in the Internet Routing Table: 14776
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5647
ARIN Region transit ASes present in the Internet Routing Table: 1567
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803214272
Equivalent to 47 /8s, 224 /16s and 19 /24s
Percentage of available ARIN address space announced: 63.8
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, 393216-394239
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,
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, 173/8,
174/8, 184/8, 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: 92789
Total RIPE prefixes after maximum aggregation: 51357
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 85036
Unique aggregates announced from the RIPE address blocks: 54688
RIPE Region origin ASes present in the Internet Routing Table: 16151
RIPE Prefixes per ASN: 5.27
RIPE Region origin ASes announcing only one prefix: 7995
RIPE Region transit ASes present in the Internet Routing Table: 2548
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1169
Number of RIPE addresses announced to Internet: 492554816
Equivalent to 29 /8s, 91 /16s and 202 /24s
Percentage of available RIPE address space announced: 79.3
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 36669
Total LACNIC prefixes after maximum aggregation: 7946
LACNIC Deaggregation factor: 4.61
Prefixes being announced from the LACNIC address blocks: 36081
Unique aggregates announced from the LACNIC address blocks: 18768
LACNIC Region origin ASes present in the Internet Routing Table: 1551
LACNIC Prefixes per ASN: 23.26
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 285
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 379
Number of LACNIC addresses announced to Internet: 94254720
Equivalent to 5 /8s, 158 /16s and 54 /24s
Percentage of available LACNIC address space announced: 62.4
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8316
Total AfriNIC prefixes after maximum aggregation: 2029
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6368
Unique aggregates announced from the AfriNIC address blocks: 2016
AfriNIC Region origin ASes present in the Internet Routing Table: 501
AfriNIC Prefixes per ASN: 12.71
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 109
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 29948672
Equivalent to 1 /8s, 200 /16s and 251 /24s
Percentage of available AfriNIC address space announced: 44.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2511 11105 974 Korea Telecom (KIX)
7545 1624 303 85 TPG Internet Pty Ltd
17974 1604 503 38 PT TELEKOMUNIKASI INDONESIA
4755 1510 381 157 TATA Communications formerly
7552 1387 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1095 80 494 Sify Limited
4808 1089 2072 311 CNCGROUP IP network: China169
24560 967 343 218 Bharti Airtel Ltd., Telemedia
18101 958 121 155 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3479 3814 217 bellsouth.net, inc.
7029 2912 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1850 680 121 PaeTec Communications, Inc.
4323 1610 1073 385 Time Warner Telecom
20115 1600 1546 624 Charter Communications
22773 1507 2909 104 Cox Communications, Inc.
30036 1440 258 677 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1316 7030 862 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1590 480 15 Corbina telecom
6830 645 1927 412 UPC Distribution Services
34984 614 115 194 BILISIM TELEKOM
20940 558 186 440 Akamai Technologies European
3320 507 8168 387 Deutsche Telekom AG
12479 488 598 10 Uni2 Autonomous System
3292 479 2106 406 TDC Tele Danmark
8866 461 133 26 Bulgarian Telecommunication C
8551 439 366 45 Bezeq International
31148 413 22 115 FreeNet ISP
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1701 315 179 TVCABLE BOGOTA
28573 1513 1059 72 NET Servicos de Comunicao S.A
8151 1453 2983 343 UniNet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 610 72 87 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
6503 553 434 68 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 545 236 87 Empresa Nacional de Telecomun
11172 527 85 95 Servicios Alestra S.A de C.V
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 928 958 13 TEDATA
24863 784 146 35 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 195 28 60 Vodacom Internet Company
24835 191 80 8 RAYA Telecom - Egypt
16637 157 662 82 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3479 3814 217 bellsouth.net, inc.
7029 2912 1016 199 Windstream Communications Inc
4766 2511 11105 974 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1850 680 121 PaeTec Communications, Inc.
10620 1701 315 179 TVCABLE BOGOTA
7545 1624 303 85 TPG Internet Pty Ltd
4323 1610 1073 385 Time Warner Telecom
17974 1604 503 38 PT TELEKOMUNIKASI INDONESIA
20115 1600 1546 624 Charter Communications
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2912 2713 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1850 1729 PaeTec Communications, Inc.
8402 1590 1575 Corbina telecom
17974 1604 1566 PT TELEKOMUNIKASI INDONESIA
7545 1624 1539 TPG Internet Pty Ltd
4766 2511 1537 Korea Telecom (KIX)
10620 1701 1522 TVCABLE BOGOTA
28573 1513 1441 NET Servicos de Comunicao S.A
22773 1507 1403 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 37345 MEDALLION Communications
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/current/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 /8:19 /9:12 /10:27 /11:82 /12:236
/13:463 /14:808 /15:1435 /16:12037 /17:6114 /18:10150
/19:20040 /20:27730 /21:27985 /22:38075 /23:35645 /24:198689
/25:1182 /26:1401 /27:784 /28:166 /29:3 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2541 2912 Windstream Communications Inc
6389 2123 3479 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1596 1701 TVCABLE BOGOTA
8402 1565 1590 Corbina telecom
30036 1400 1440 Mediacom Communications Corp
11492 1119 1156 Cable One
1785 1058 1850 PaeTec Communications, Inc.
7011 1052 1169 Citizens Utilities
22773 967 1507 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:436 2:492 4:15 5:1 6:3 8:357
12:1952 13:1 14:553 15:11 16:3 17:7
20:9 23:71 24:1693 27:1048 31:717 32:66
33:2 34:2 36:4 38:768 39:1 40:114
41:2835 42:65 43:1 44:3 46:1107 47:3
49:293 50:448 52:13 55:6 56:2 57:49
58:929 59:480 60:358 61:1168 62:917 63:1966
64:4076 65:2311 66:4363 67:1999 68:1174 69:3156
70:904 71:359 72:1814 74:2648 75:430 76:320
77:898 78:891 79:437 80:1140 81:848 82:523
83:527 84:471 85:1165 86:410 87:907 88:354
89:1592 90:246 91:4310 92:529 93:1426 94:1324
95:1103 96:394 97:285 98:773 99:37 101:124
103:514 106:7 107:100 108:87 109:1091 110:666
111:810 112:368 113:482 114:622 115:701 116:894
117:706 118:867 119:1265 120:342 121:669 122:1573
123:1032 124:1337 125:1350 128:281 129:184 130:174
131:632 132:155 133:21 134:226 135:54 136:212
137:146 138:285 139:123 140:490 141:250 142:380
143:402 144:499 145:66 146:475 147:221 148:642
149:270 150:164 151:192 152:449 153:171 154:7
155:379 156:208 157:357 158:157 159:498 160:334
161:215 162:364 163:175 164:516 165:385 166:540
167:455 168:824 169:145 170:824 171:87 172:4
173:1763 174:584 175:414 176:340 177:393 178:1131
180:1118 181:39 182:667 183:243 184:399 185:1
186:1472 187:784 188:946 189:1163 190:5269 192:5937
193:5097 194:3545 195:3113 196:1282 197:169 198:3611
199:4232 200:5516 201:1698 202:8472 203:8500 204:4324
205:2409 206:2671 207:2839 208:4014 209:3550 210:2746
211:1473 212:1981 213:1802 214:823 215:96 216:4932
217:1484 218:576 219:340 220:1244 221:524 222:325
223:280
End of report
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