Routing Table Report 04:00 +10GMT Mon 20 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 398118
Prefixes after maximum aggregation: 169929
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 192590
Total ASes present in the Internet Routing Table: 40148
Prefixes per ASN: 9.92
Origin-only ASes present in the Internet Routing Table: 32774
Origin ASes announcing only one prefix: 15520
Transit ASes present in the Internet Routing Table: 5394
Transit-only ASes present in the Internet Routing Table: 142
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: 325
Unregistered ASNs in the Routing Table: 128
Number of 32-bit ASNs allocated by the RIRs: 2284
Number of 32-bit ASNs visible in the Routing Table: 1980
Prefixes from 32-bit ASNs in the Routing Table: 4802
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 239
Number of addresses announced to Internet: 2516127824
Equivalent to 149 /8s, 249 /16s and 16 /24s
Percentage of available address space announced: 67.9
Percentage of allocated address space announced: 67.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 169214
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98010
Total APNIC prefixes after maximum aggregation: 31806
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 94316
Unique aggregates announced from the APNIC address blocks: 39148
APNIC Region origin ASes present in the Internet Routing Table: 4663
APNIC Prefixes per ASN: 20.23
APNIC Region origin ASes announcing only one prefix: 1238
APNIC Region transit ASes present in the Internet Routing Table: 738
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 149
Number of APNIC addresses announced to Internet: 636135776
Equivalent to 37 /8s, 234 /16s and 169 /24s
Percentage of available APNIC address space announced: 80.7
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: 148360
Total ARIN prefixes after maximum aggregation: 75322
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120259
Unique aggregates announced from the ARIN address blocks: 49510
ARIN Region origin ASes present in the Internet Routing Table: 14904
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5678
ARIN Region transit ASes present in the Internet Routing Table: 1568
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 805193408
Equivalent to 47 /8s, 254 /16s and 70 /24s
Percentage of available ARIN address space announced: 64.0
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: 99255
Total RIPE prefixes after maximum aggregation: 52530
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 90999
Unique aggregates announced from the RIPE address blocks: 56116
RIPE Region origin ASes present in the Internet Routing Table: 16321
RIPE Prefixes per ASN: 5.58
RIPE Region origin ASes announcing only one prefix: 7999
RIPE Region transit ASes present in the Internet Routing Table: 2602
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: 1356
Number of RIPE addresses announced to Internet: 501134856
Equivalent to 29 /8s, 222 /16s and 182 /24s
Percentage of available RIPE address space announced: 80.7
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: 38592
Total LACNIC prefixes after maximum aggregation: 8097
LACNIC Deaggregation factor: 4.77
Prefixes being announced from the LACNIC address blocks: 38292
Unique aggregates announced from the LACNIC address blocks: 19532
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 24.36
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 290
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 456
Number of LACNIC addresses announced to Internet: 96682120
Equivalent to 5 /8s, 195 /16s and 64 /24s
Percentage of available LACNIC address space announced: 64.0
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: 8924
Total AfriNIC prefixes after maximum aggregation: 2087
AfriNIC Deaggregation factor: 4.28
Prefixes being announced from the AfriNIC address blocks: 6961
Unique aggregates announced from the AfriNIC address blocks: 2176
AfriNIC Region origin ASes present in the Internet Routing Table: 513
AfriNIC Prefixes per ASN: 13.57
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 118
Average AfriNIC Region AS path length visible: 4.4
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: 30964224
Equivalent to 1 /8s, 216 /16s and 122 /24s
Percentage of available AfriNIC address space announced: 46.1
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 2485 11107 989 Korea Telecom (KIX)
17974 1729 501 36 PT TELEKOMUNIKASI INDONESIA
7545 1640 303 84 TPG Internet Pty Ltd
4755 1548 385 159 TATA Communications formerly
7552 1265 1064 7 Vietel Corporation
9829 1178 997 29 BSNL National Internet Backbo
4808 1148 2113 317 CNCGROUP IP network: China169
9583 1125 84 483 Sify Limited
24560 1019 385 167 Bharti Airtel Ltd., Telemedia
18101 949 130 155 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 3439 3807 201 bellsouth.net, inc.
7029 3410 1014 159 Windstream Communications Inc
18566 2091 382 177 Covad Communications
1785 1871 680 126 PaeTec Communications, Inc.
20115 1627 1550 630 Charter Communications
4323 1606 1043 381 Time Warner Telecom
22773 1527 2910 110 Cox Communications, Inc.
30036 1405 251 748 Mediacom Communications Corp
19262 1388 4703 397 Verizon Global Networks
7018 1307 6980 847 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 1831 480 15 Corbina telecom
2118 1399 97 13 EUnet/RELCOM Autonomous Syste
15557 1098 2184 60 LDCOM NETWORKS
34984 653 188 173 BILISIM TELEKOM
6830 644 1927 413 UPC Distribution Services
20940 615 198 472 Akamai Technologies European
12479 603 643 54 Uni2 Autonomous System
8551 574 360 81 Bezeq International
31148 538 37 9 FreeNet ISP
3320 533 8450 399 Deutsche Telekom AG
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 1744 323 172 TVCABLE BOGOTA
28573 1671 1085 65 NET Servicos de Comunicao S.A
8151 1468 3006 346 UniNet S.A. de C.V.
7303 1264 758 183 Telecom Argentina Stet-France
26615 815 668 34 Tim Brasil S.A.
27947 661 67 108 Telconet S.A
11172 631 91 73 Servicios Alestra S.A de C.V
22047 581 322 17 VTR PUNTO NET S.A.
3816 552 237 91 Empresa Nacional de Telecomun
6503 552 418 66 AVANTEL, 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 1231 958 13 TEDATA
24863 831 156 44 LINKdotNET AS number
6713 488 649 18 Itissalat Al-MAGHRIB
3741 278 939 229 The Internet Solution
33776 237 13 14 Starcomms Nigeria Limited
15706 222 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
16637 163 664 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 3439 3807 201 bellsouth.net, inc.
7029 3410 1014 159 Windstream Communications Inc
4766 2485 11107 989 Korea Telecom (KIX)
18566 2091 382 177 Covad Communications
1785 1871 680 126 PaeTec Communications, Inc.
8402 1831 480 15 Corbina telecom
10620 1744 323 172 TVCABLE BOGOTA
17974 1729 501 36 PT TELEKOMUNIKASI INDONESIA
28573 1671 1085 65 NET Servicos de Comunicao S.A
7545 1640 303 84 TPG Internet Pty Ltd
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 3410 3251 Windstream Communications Inc
18566 2091 1914 Covad Communications
8402 1831 1816 Corbina telecom
1785 1871 1745 PaeTec Communications, Inc.
17974 1729 1693 PT TELEKOMUNIKASI INDONESIA
28573 1671 1606 NET Servicos de Comunicao S.A
10620 1744 1572 TVCABLE BOGOTA
7545 1640 1556 TPG Internet Pty Ltd
4766 2485 1496 Korea Telecom (KIX)
22773 1527 1417 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
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/16 18779 Guru.com
27.112.114.0/24 23884 Proimage Engineering and Comm
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 /11:80 /12:231
/13:458 /14:813 /15:1473 /16:12148 /17:6212 /18:10355
/19:20467 /20:28348 /21:29265 /22:39889 /23:37044 /24:207649
/25:1176 /26:1427 /27:771 /28:167 /29:55 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3066 3410 Windstream Communications Inc
6389 2109 3439 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1810 1831 Corbina telecom
10620 1641 1744 TVCABLE BOGOTA
30036 1356 1405 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1064 1871 PaeTec Communications, Inc.
15557 1045 1098 LDCOM NETWORKS
8452 1041 1231 TEDATA
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:507 2:773 4:14 5:1 6:3 8:385
12:1959 13:1 14:600 15:11 16:3 17:7
20:8 23:135 24:1731 27:1194 31:933 32:65
33:2 34:2 36:9 37:185 38:781 40:115
41:3128 42:96 43:1 44:3 46:1304 47:3
49:331 50:502 52:13 54:2 55:7 56:3
57:38 58:967 59:495 60:344 61:1192 62:946
63:2005 64:4134 65:2281 66:4451 67:2035 68:1174
69:3162 70:934 71:412 72:1793 74:2656 75:467
76:317 77:976 78:965 79:477 80:1213 81:878
82:617 83:523 84:583 85:1151 86:742 87:911
88:338 89:1556 90:282 91:4473 92:527 93:1367
94:1376 95:1107 96:419 97:312 98:820 99:38
100:4 101:146 103:805 106:65 107:157 108:168
109:1487 110:697 111:852 112:437 113:530 114:603
115:764 116:862 117:710 118:904 119:1256 120:362
121:688 122:1624 123:1079 124:1333 125:1325 128:538
129:190 130:213 131:574 132:165 133:21 134:234
135:62 136:215 137:182 138:288 139:145 140:487
141:263 142:390 143:402 144:511 145:69 146:483
147:237 148:729 149:282 150:163 151:198 152:447
153:170 154:7 155:399 156:213 157:368 158:160
159:512 160:320 161:245 162:341 163:187 164:531
165:389 166:559 167:458 168:762 169:147 170:837
171:114 172:4 173:1721 174:569 175:417 176:503
177:506 178:1274 180:1178 181:68 182:727 183:279
184:431 185:1 186:1974 187:856 188:1071 189:1179
190:5547 192:5983 193:5535 194:4341 195:3401 196:1282
197:166 198:3612 199:4386 200:5696 201:1740 202:8402
203:8636 204:4367 205:2433 206:2745 207:2779 208:4076
209:3555 210:2762 211:1482 212:2014 213:1839 214:851
215:91 216:5033 217:1487 218:551 219:338 220:1225
221:561 222:324 223:315
End of report