Routing Table Report 04:00 +10GMT Wed 02 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 379945
Prefixes after maximum aggregation: 166356
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 186618
Total ASes present in the Internet Routing Table: 39192
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 32358
Origin ASes announcing only one prefix: 15486
Transit ASes present in the Internet Routing Table: 5261
Transit-only ASes present in the Internet Routing Table: 134
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1587
Unregistered ASNs in the Routing Table: 849
Number of 32-bit ASNs allocated by the RIRs: 1919
Number of 32-bit ASNs visible in the Routing Table: 1573
Prefixes from 32-bit ASNs in the Routing Table: 3638
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 86
Number of addresses announced to Internet: 2489052480
Equivalent to 148 /8s, 91 /16s and 237 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 160120
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94663
Total APNIC prefixes after maximum aggregation: 31038
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91087
Unique aggregates announced from the APNIC address blocks: 38183
APNIC Region origin ASes present in the Internet Routing Table: 4594
APNIC Prefixes per ASN: 19.83
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 713
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 100
Number of APNIC addresses announced to Internet: 629405280
Equivalent to 37 /8s, 131 /16s and 246 /24s
Percentage of available APNIC address space announced: 79.8
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: 145889
Total ARIN prefixes after maximum aggregation: 74485
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117768
Unique aggregates announced from the ARIN address blocks: 48233
ARIN Region origin ASes present in the Internet Routing Table: 14729
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5641
ARIN Region transit ASes present in the Internet Routing Table: 1559
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: 804522752
Equivalent to 47 /8s, 244 /16s and 11 /24s
Percentage of available ARIN address space announced: 63.9
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: 91222
Total RIPE prefixes after maximum aggregation: 50831
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 83884
Unique aggregates announced from the RIPE address blocks: 54271
RIPE Region origin ASes present in the Internet Routing Table: 16078
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7972
RIPE Region transit ASes present in the Internet Routing Table: 2528
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: 1098
Number of RIPE addresses announced to Internet: 491191232
Equivalent to 29 /8s, 70 /16s and 251 /24s
Percentage of available RIPE address space announced: 79.1
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: 35808
Total LACNIC prefixes after maximum aggregation: 7898
LACNIC Deaggregation factor: 4.53
Prefixes being announced from the LACNIC address blocks: 35231
Unique aggregates announced from the LACNIC address blocks: 18512
LACNIC Region origin ASes present in the Internet Routing Table: 1542
LACNIC Prefixes per ASN: 22.85
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 280
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 359
Number of LACNIC addresses announced to Internet: 92722560
Equivalent to 5 /8s, 134 /16s and 213 /24s
Percentage of available LACNIC address space announced: 61.4
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: 8556
Total AfriNIC prefixes after maximum aggregation: 2028
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6662
Unique aggregates announced from the AfriNIC address blocks: 1988
AfriNIC Region origin ASes present in the Internet Routing Table: 498
AfriNIC Prefixes per ASN: 13.38
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 110
Average AfriNIC Region AS path length visible: 4.7
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: 27926272
Equivalent to 1 /8s, 170 /16s and 31 /24s
Percentage of available AfriNIC address space announced: 41.6
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 2513 11129 973 Korea Telecom (KIX)
17974 1626 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1613 303 86 TPG Internet Pty Ltd
4755 1541 637 174 TATA Communications formerly
7552 1393 1064 8 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1092 80 500 Sify Limited
4808 1090 2103 312 CNCGROUP IP network: China169
24560 964 342 218 Bharti Airtel Ltd., Telemedia
18101 953 135 149 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 3544 3814 220 bellsouth.net, inc.
7029 2333 1016 197 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1841 680 122 PaeTec Communications, Inc.
4323 1622 1078 388 Time Warner Telecom
20115 1596 1547 621 Charter Communications
22773 1460 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1395 253 668 Mediacom Communications Corp
7018 1315 7029 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 1554 416 14 Corbina telecom
6830 652 1927 414 UPC Distribution Services
34984 591 108 180 BILISIM TELEKOM
20940 530 178 415 Akamai Technologies European
3320 507 8169 387 Deutsche Telekom AG
12479 479 596 9 Uni2 Autonomous System
3292 478 2074 405 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
8551 403 354 44 Bezeq International
31148 403 22 112 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 1699 314 156 TVCABLE BOGOTA
28573 1466 1042 72 NET Servicos de Comunicao S.A
8151 1426 2929 348 UniNet S.A. de C.V.
7303 1236 751 171 Telecom Argentina Stet-France
27947 590 72 84 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 569 434 68 AVANTEL, S.A.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 537 233 95 Empresa Nacional de Telecomun
11172 525 86 96 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
24863 799 146 36 LINKdotNET AS number
8452 652 446 12 TEDATA
15475 444 74 8 Nile Online
36992 295 415 20 Etisalat MISR
3741 281 939 230 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
29571 218 17 13 Ci Telecom Autonomous system
12258 196 28 57 Vodacom Internet Company
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 3544 3814 220 bellsouth.net, inc.
4766 2513 11129 973 Korea Telecom (KIX)
7029 2333 1016 197 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1841 680 122 PaeTec Communications, Inc.
10620 1699 314 156 TVCABLE BOGOTA
17974 1626 511 36 PT TELEKOMUNIKASI INDONESIA
4323 1622 1078 388 Time Warner Telecom
7545 1613 303 86 TPG Internet Pty Ltd
20115 1596 1547 621 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 2333 2136 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1841 1719 PaeTec Communications, Inc.
17974 1626 1590 PT TELEKOMUNIKASI INDONESIA
10620 1699 1543 TVCABLE BOGOTA
4766 2513 1540 Korea Telecom (KIX)
8402 1554 1540 Corbina telecom
7545 1613 1527 TPG Internet Pty Ltd
28573 1466 1394 NET Servicos de Comunicao S.A
7552 1393 1385 Vietel Corporation
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
128.0.0.0/16 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 36938 >>UNKNOWN<<
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 /11:81 /12:236
/13:464 /14:809 /15:1423 /16:12026 /17:6068 /18:10083
/19:19939 /20:27564 /21:27583 /22:37121 /23:35206 /24:197838
/25:1158 /26:1355 /27:761 /28:163 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2184 3544 bellsouth.net, inc.
18566 2043 2094 Covad Communications
7029 2002 2333 Windstream Communications Inc
10620 1594 1699 TVCABLE BOGOTA
8402 1529 1554 Corbina telecom
30036 1356 1395 Mediacom Communications Corp
11492 1117 1155 Cable One
1785 1056 1841 PaeTec Communications, Inc.
7011 1050 1168 Citizens Utilities
22773 948 1460 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:413 2:492 4:15 5:1 6:3 8:360
12:1952 13:1 14:542 15:11 16:3 17:7
20:9 23:59 24:1680 27:970 31:655 32:61
33:2 34:2 36:4 38:756 40:110 41:2683
42:53 44:3 46:1021 47:3 49:299 50:443
52:13 55:7 56:2 57:46 58:891 59:491
60:361 61:1122 62:1088 63:1961 64:4052 65:2300
66:4273 67:1986 68:1155 69:3203 70:882 71:383
72:1804 74:2606 75:393 76:316 77:879 78:867
79:474 80:1137 81:828 82:520 83:527 84:619
85:1148 86:403 87:920 88:354 89:1602 90:237
91:4240 92:530 93:1528 94:1302 95:1117 96:426
97:286 98:928 99:37 101:222 103:417 106:70
107:79 108:72 109:1050 110:662 111:796 112:334
113:485 114:617 115:709 116:883 117:721 118:874
119:1268 120:340 121:694 122:1560 123:1007 124:1328
125:1351 128:244 129:189 130:162 131:628 132:148
133:21 134:220 135:54 136:213 137:140 138:286
139:123 140:489 141:312 142:386 143:416 144:493
145:64 146:465 147:219 148:643 149:267 150:164
151:194 152:447 153:178 154:7 155:381 156:208
157:360 158:154 159:485 160:333 161:214 162:371
163:173 164:511 165:369 166:539 167:436 168:743
169:145 170:880 171:86 172:4 173:1715 174:675
175:420 176:284 177:363 178:1071 180:1133 181:36
182:650 183:223 184:383 185:1 186:1309 187:774
188:952 189:1136 190:5157 192:5928 193:5045 194:3560
195:3111 196:1233 197:165 198:3623 199:4164 200:5520
201:1688 202:8567 203:8481 204:4304 205:2369 206:2672
207:2826 208:4024 209:3580 210:2726 211:1461 212:2077
213:1778 214:808 215:97 216:4925 217:1604 218:562
219:341 220:1256 221:515 222:322 223:264
End of report