Routing Table Report 04:00 +10GMT Mon 12 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 384640
Prefixes after maximum aggregation: 167596
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 188668
Total ASes present in the Internet Routing Table: 39523
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 32463
Origin ASes announcing only one prefix: 15495
Transit ASes present in the Internet Routing Table: 5347
Transit-only ASes present in the Internet Routing Table: 145
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: 1870
Unregistered ASNs in the Routing Table: 976
Number of 32-bit ASNs allocated by the RIRs: 2073
Number of 32-bit ASNs visible in the Routing Table: 1713
Prefixes from 32-bit ASNs in the Routing Table: 4051
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 77
Number of addresses announced to Internet: 2499644416
Equivalent to 148 /8s, 253 /16s and 140 /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: 91.7
Total number of prefixes smaller than registry allocations: 162354
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95424
Total APNIC prefixes after maximum aggregation: 31247
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91888
Unique aggregates announced from the APNIC address blocks: 38490
APNIC Region origin ASes present in the Internet Routing Table: 4602
APNIC Prefixes per ASN: 19.97
APNIC Region origin ASes announcing only one prefix: 1247
APNIC Region transit ASes present in the Internet Routing Table: 722
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: 118
Number of APNIC addresses announced to Internet: 631117408
Equivalent to 37 /8s, 158 /16s and 22 /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: 146292
Total ARIN prefixes after maximum aggregation: 74748
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118424
Unique aggregates announced from the ARIN address blocks: 48646
ARIN Region origin ASes present in the Internet Routing Table: 14795
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5667
ARIN Region transit ASes present in the Internet Routing Table: 1576
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: 803365312
Equivalent to 47 /8s, 226 /16s and 97 /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: 93520
Total RIPE prefixes after maximum aggregation: 51533
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 85829
Unique aggregates announced from the RIPE address blocks: 54895
RIPE Region origin ASes present in the Internet Routing Table: 16173
RIPE Prefixes per ASN: 5.31
RIPE Region origin ASes announcing only one prefix: 7985
RIPE Region transit ASes present in the Internet Routing Table: 2565
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: 1201
Number of RIPE addresses announced to Internet: 494095296
Equivalent to 29 /8s, 115 /16s and 75 /24s
Percentage of available RIPE address space announced: 79.6
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: 36752
Total LACNIC prefixes after maximum aggregation: 7940
LACNIC Deaggregation factor: 4.63
Prefixes being announced from the LACNIC address blocks: 36225
Unique aggregates announced from the LACNIC address blocks: 18852
LACNIC Region origin ASes present in the Internet Routing Table: 1553
LACNIC Prefixes per ASN: 23.33
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 289
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: 378
Number of LACNIC addresses announced to Internet: 94673280
Equivalent to 5 /8s, 164 /16s and 153 /24s
Percentage of available LACNIC address space announced: 62.7
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: 8431
Total AfriNIC prefixes after maximum aggregation: 2056
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6472
Unique aggregates announced from the AfriNIC address blocks: 2058
AfriNIC Region origin ASes present in the Internet Routing Table: 500
AfriNIC Prefixes per ASN: 12.94
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 111
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: 30367744
Equivalent to 1 /8s, 207 /16s and 96 /24s
Percentage of available AfriNIC address space announced: 45.3
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 2509 11104 970 Korea Telecom (KIX)
17974 1697 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1631 303 86 TPG Internet Pty Ltd
4755 1510 385 158 TATA Communications formerly
7552 1392 1064 7 Vietel Corporation
9829 1170 989 28 BSNL National Internet Backbo
9583 1099 81 496 Sify Limited
4808 1076 2034 303 CNCGROUP IP network: China169
24560 982 381 162 Bharti Airtel Ltd., Telemedia
18101 963 122 157 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 3481 3814 218 bellsouth.net, inc.
7029 2916 1017 200 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1855 680 121 PaeTec Communications, Inc.
4323 1617 1073 385 Time Warner Telecom
20115 1602 1548 628 Charter Communications
22773 1505 2909 104 Cox Communications, Inc.
30036 1446 258 676 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1309 7029 858 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 1633 480 15 Corbina telecom
6830 644 1927 412 UPC Distribution Services
34984 624 132 201 BILISIM TELEKOM
2118 550 99 14 EUnet/RELCOM Autonomous Syste
20940 544 174 434 Akamai Technologies European
3320 528 8161 394 Deutsche Telekom AG
12479 492 601 12 Uni2 Autonomous System
3292 480 2106 407 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
8551 423 366 45 Bezeq International
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 1721 318 155 TVCABLE BOGOTA
28573 1548 1059 72 NET Servicos de Comunicao S.A
8151 1459 2985 348 UniNet S.A. de C.V.
7303 1239 751 174 Telecom Argentina Stet-France
27947 617 72 91 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 546 237 89 Empresa Nacional de Telecomun
11172 529 102 96 Servicios Alestra S.A de C.V
14117 498 46 42 Telefonica del Sur S.A.
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 963 958 13 TEDATA
24863 785 146 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 217 17 13 Ci Telecom Autonomous system
12258 195 28 60 Vodacom Internet Company
24835 193 80 8 RAYA Telecom - Egypt
16637 164 664 83 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 3481 3814 218 bellsouth.net, inc.
7029 2916 1017 200 Windstream Communications Inc
4766 2509 11104 970 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1855 680 121 PaeTec Communications, Inc.
10620 1721 318 155 TVCABLE BOGOTA
17974 1697 503 38 PT TELEKOMUNIKASI INDONESIA
8402 1633 480 15 Corbina telecom
7545 1631 303 86 TPG Internet Pty Ltd
4323 1617 1073 385 Time Warner Telecom
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 2916 2716 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1855 1734 PaeTec Communications, Inc.
17974 1697 1659 PT TELEKOMUNIKASI INDONESIA
8402 1633 1618 Corbina telecom
10620 1721 1566 TVCABLE BOGOTA
7545 1631 1545 TPG Internet Pty Ltd
4766 2509 1539 Korea Telecom (KIX)
28573 1548 1476 NET Servicos de Comunicao S.A
22773 1505 1401 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
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
64.21.192.0/20 11610 Internet Nebraska Corporation
64.21.212.0/22 11610 Internet Nebraska Corporation
64.21.216.0/21 11610 Internet Nebraska Corporation
66.175.222.0/23 30058 FDC Servers.net, LLC
66.180.239.0/24 35888 VIGNETTE CORPORATION
66.207.32.0/20 23011 >>UNKNOWN<<
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
/13:465 /14:812 /15:1444 /16:12044 /17:6104 /18:10152
/19:20076 /20:27798 /21:28051 /22:38204 /23:35775 /24:199785
/25:1177 /26:1417 /27:783 /28:170 /29:3 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2545 2916 Windstream Communications Inc
6389 2124 3481 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1616 1721 TVCABLE BOGOTA
8402 1608 1633 Corbina telecom
30036 1406 1446 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1060 1855 PaeTec Communications, Inc.
7011 1051 1167 Citizens Utilities
22773 966 1505 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:444 2:481 4:15 5:1 6:3 8:360
12:1945 13:1 14:558 15:11 16:3 17:7
20:9 23:71 24:1698 27:1114 31:726 32:67
33:2 34:2 36:4 38:771 39:1 40:114
41:2904 42:72 43:1 44:3 46:1113 47:3
49:276 50:459 52:13 55:5 56:2 57:45
58:945 59:486 60:338 61:1185 62:910 63:1968
64:4077 65:2304 66:4364 67:2007 68:1179 69:3119
70:916 71:362 72:1777 74:2640 75:430 76:319
77:939 78:874 79:439 80:1146 81:845 82:529
83:529 84:471 85:1171 86:411 87:909 88:353
89:1589 90:247 91:4346 92:540 93:1407 94:1329
95:1123 96:396 97:286 98:777 99:38 101:120
103:538 106:8 107:107 108:95 109:1098 110:670
111:822 112:376 113:486 114:616 115:704 116:875
117:715 118:881 119:1237 120:343 121:681 122:1559
123:1023 124:1372 125:1337 128:331 129:189 130:182
131:573 132:161 133:21 134:220 135:55 136:213
137:148 138:286 139:123 140:482 141:254 142:382
143:395 144:503 145:66 146:476 147:222 148:626
149:272 150:165 151:192 152:445 153:171 154:7
155:380 156:208 157:358 158:156 159:503 160:340
161:221 162:363 163:183 164:523 165:387 166:542
167:458 168:818 169:146 170:824 171:93 172:4
173:1788 174:590 175:415 176:356 177:422 178:1135
180:1206 181:38 182:675 183:247 184:400 185:1
186:1484 187:784 188:946 189:1148 190:5305 192:5972
193:5121 194:3800 195:3367 196:1284 197:172 198:3610
199:4216 200:5501 201:1702 202:8495 203:8521 204:4325
205:2405 206:2672 207:2844 208:4004 209:3554 210:2754
211:1470 212:1975 213:1797 214:821 215:95 216:4933
217:1491 218:579 219:344 220:1250 221:529 222:326
223:262
End of report
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