Routing Table Report 08:00 +10GMT Fri 19 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 362228
Prefixes after maximum aggregation: 164550
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182544
Total ASes present in the Internet Routing Table: 37040
Prefixes per ASN: 9.78
Origin-only ASes present in the Internet Routing Table: 31952
Origin ASes announcing only one prefix: 15390
Transit ASes present in the Internet Routing Table: 5088
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2471
Unregistered ASNs in the Routing Table: 710
Number of 32-bit ASNs allocated by the RIRs: 1653
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3069
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 109
Number of addresses announced to Internet: 2485985792
Equivalent to 148 /8s, 45 /16s and 34 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 149753
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87700
Total APNIC prefixes after maximum aggregation: 29157
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 85114
Unique aggregates announced from the APNIC address blocks: 37887
APNIC Region origin ASes present in the Internet Routing Table: 4490
APNIC Prefixes per ASN: 18.96
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 680
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 623391744
Equivalent to 37 /8s, 40 /16s and 52 /24s
Percentage of available APNIC address space announced: 79.1
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: 141061
Total ARIN prefixes after maximum aggregation: 72767
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113267
Unique aggregates announced from the ARIN address blocks: 47114
ARIN Region origin ASes present in the Internet Routing Table: 14509
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5602
ARIN Region transit ASes present in the Internet Routing Table: 1461
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803680768
Equivalent to 47 /8s, 231 /16s and 50 /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: 87938
Total RIPE prefixes after maximum aggregation: 49674
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81096
Unique aggregates announced from the RIPE address blocks: 53427
RIPE Region origin ASes present in the Internet Routing Table: 15887
RIPE Prefixes per ASN: 5.10
RIPE Region origin ASes announcing only one prefix: 7922
RIPE Region transit ASes present in the Internet Routing Table: 2499
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 487659520
Equivalent to 29 /8s, 17 /16s and 24 /24s
Percentage of available RIPE address space announced: 78.6
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: 33451
Total LACNIC prefixes after maximum aggregation: 7527
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 32851
Unique aggregates announced from the LACNIC address blocks: 17274
LACNIC Region origin ASes present in the Internet Routing Table: 1488
LACNIC Prefixes per ASN: 22.08
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 87545344
Equivalent to 5 /8s, 55 /16s and 214 /24s
Percentage of available LACNIC address space announced: 58.0
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: 8323
Total AfriNIC prefixes after maximum aggregation: 2043
AfriNIC Deaggregation factor: 4.07
Prefixes being announced from the AfriNIC address blocks: 6460
Unique aggregates announced from the AfriNIC address blocks: 2088
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 107
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 26915328
Equivalent to 1 /8s, 154 /16s and 178 /24s
Percentage of available AfriNIC address space announced: 40.1
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 1937 11038 646 Korea Telecom (KIX)
17974 1619 516 31 PT Telekomunikasi Indonesia
7545 1573 301 82 TPG Internet Pty Ltd
4755 1525 374 165 TATA Communications formerly
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1156 989 28 National Internet Backbone
9583 1071 78 493 Sify Limited
7552 1001 1062 11 Vietel Corporation
17488 1000 188 139 Hathway IP Over Cable Interne
4808 951 2004 272 CNCGROUP IP network China169
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3584 3817 227 BellSouth.net Inc.
18566 1910 364 238 Covad Communications Co.
1785 1821 681 123 PaeTec Communications, Inc.
4323 1618 1102 402 tw telecom holdings, inc.
7029 1611 1029 208 Windstream Communications Inc
20115 1585 1537 630 Charter Communications
22773 1432 2903 97 Cox Communications Inc.
19262 1405 4778 395 Verizon Online LLC
7018 1359 7084 891 AT&T Services, Inc.
2386 1231 516 892 AT&T Data Communications Serv
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
9116 540 326 31 Goldenlines main autonomous s
34984 540 107 183 BILISIM TELEKOM
6830 510 1787 316 UPC Broadband
20940 476 136 369 Akamai Technologies European
3292 469 2080 404 TDC Data Networks
8866 457 133 26 Bulgarian Telecommunication C
12479 456 593 7 France Telecom Espana SA
29049 423 31 57 AzerSat LLC.
3320 422 8150 368 Deutsche Telekom AG
8551 404 355 38 Bezeq International
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1590 294 162 Types of queries are: POCs, o
8151 1264 2749 351 Uninet S.A. de C.V.
28573 1257 996 67 Types of queries are: POCs, o
7303 1046 578 163 Telecom Argentina S.A.
6503 730 450 76 Axtel, S.A.B. de C.V.
14420 705 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 527 232 99 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia S.A
27947 508 54 49 Telconet S.A
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 807 145 56 LINKdotNET AS number
8452 639 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
33776 226 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 195 28 62 Vodacom Internet Company
24835 179 78 10 RAYA Telecom - Egypt
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3584 3817 227 BellSouth.net Inc.
23456 3069 731 1648 32-bit ASN transition
4766 1937 11038 646 Korea Telecom (KIX)
18566 1910 364 238 Covad Communications Co.
1785 1821 681 123 PaeTec Communications, Inc.
17974 1619 516 31 PT Telekomunikasi Indonesia
4323 1618 1102 402 tw telecom holdings, inc.
7029 1611 1029 208 Windstream Communications Inc
10620 1590 294 162 Types of queries are: POCs, o
20115 1585 1537 630 Charter Communications
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1821 1698 PaeTec Communications, Inc.
18566 1910 1672 Covad Communications Co.
17974 1619 1588 PT Telekomunikasi Indonesia
7545 1573 1491 TPG Internet Pty Ltd
10620 1590 1428 Types of queries are: POCs, o
23456 3069 1421 32-bit ASN transition
7029 1611 1403 Windstream Communications Inc
4755 1525 1360 TATA Communications formerly
22773 1432 1335 Cox Communications Inc.
4766 1937 1291 Korea Telecom (KIX)
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 65535 Internet Assigned Numbers Aut
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/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
62.61.221.0/24 24974 Tachyon Europe BV
Complete listing at http://thyme.rand.apnic.net/london/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 /8:20 /9:12 /10:27 /11:81 /12:234
/13:459 /14:796 /15:1413 /16:11906 /17:5907 /18:9929
/19:19608 /20:26486 /21:26501 /22:35193 /23:33908 /24:189242
/25:11 /26:19 /27:23 /28:160 /29:110 /30:55
/31:0 /32:128
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2216 3584 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
23456 1506 3069 32-bit ASN transition
10620 1485 1590 Types of queries are: POCs, o
7029 1295 1611 Windstream Communications Inc
11492 1100 1146 CABLE ONE, INC.
7011 1058 1161 Frontier Communications of Am
1785 1052 1821 PaeTec Communications, Inc.
22773 928 1432 Cox Communications Inc.
30036 910 933 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:358 2:46 4:15 5:1 6:3 8:342
12:1955 13:1 14:506 15:15 16:3 17:5
20:10 23:23 24:1680 27:866 31:517 32:59
33:4 34:2 36:4 38:727 40:107 41:2490
42:45 44:3 46:1057 47:3 49:219 50:409
52:13 54:2 55:9 56:2 57:34 58:818
59:494 60:374 61:1018 62:1082 63:1923 64:3972
65:2298 66:3915 67:1920 68:1103 69:3079 70:776
71:373 72:1843 74:2433 75:328 76:338 77:861
78:707 79:488 80:1130 81:829 82:500 83:479
84:687 85:1075 86:498 87:841 88:335 89:1534
90:224 91:4033 92:520 93:1138 94:1338 95:875
96:414 97:267 98:924 99:36 101:73 103:210
106:69 107:32 108:74 109:1012 110:632 111:729
112:298 113:408 114:557 115:675 116:975 117:662
118:836 119:1174 120:313 121:662 122:1597 123:978
124:1277 125:1278 128:188 129:169 130:165 131:575
132:108 133:21 134:205 135:51 136:214 137:134
138:295 139:114 140:467 141:277 142:364 143:438
144:485 145:58 146:457 147:216 148:630 149:253
150:194 151:190 152:439 153:184 154:4 155:401
156:197 157:300 158:133 159:391 160:318 161:199
162:324 163:177 164:516 165:365 166:533 167:433
168:741 169:151 170:841 171:81 172:1 173:1648
174:613 175:379 176:154 177:215 178:958 180:919
181:26 182:516 183:242 184:363 185:1 186:1355
187:723 188:932 189:923 190:5112 192:5882 193:4984
194:3506 195:3038 196:1202 197:127 198:3536 199:3991
200:5436 201:1484 202:8201 203:8370 204:4174 205:2323
206:2588 207:2741 208:3989 209:3385 210:2611 211:1451
212:2100 213:1768 214:760 215:70 216:4838 217:1609
218:543 219:349 220:1186 221:499 222:308 223:241
End of report
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