The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Tuesday, December 10, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Wed 11 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/au/

Analysis Summary
----------------

BGP routing table entries examined: 470115
Prefixes after maximum aggregation: 188716
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 235385
Total ASes present in the Internet Routing Table: 45543
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 35490
Origin ASes announcing only one prefix: 16298
Transit ASes present in the Internet Routing Table: 5791
Transit-only ASes present in the Internet Routing Table: 152
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 29
Max AS path prepend of ASN ( 55644) 25
Prefixes from unregistered ASNs in the Routing Table: 1121
Unregistered ASNs in the Routing Table: 304
Number of 32-bit ASNs allocated by the RIRs: 5480
Number of 32-bit ASNs visible in the Routing Table: 4262
Prefixes from 32-bit ASNs in the Routing Table: 13347
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1360
Number of addresses announced to Internet: 2657039100
Equivalent to 158 /8s, 95 /16s and 50 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 163380

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 110355
Total APNIC prefixes after maximum aggregation: 33535
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 112609
Unique aggregates announced from the APNIC address blocks: 47946
APNIC Region origin ASes present in the Internet Routing Table: 4844
APNIC Prefixes per ASN: 23.25
APNIC Region origin ASes announcing only one prefix: 1221
APNIC Region transit ASes present in the Internet Routing Table: 827
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 779
Number of APNIC addresses announced to Internet: 728289276
Equivalent to 43 /8s, 104 /16s and 207 /24s
Percentage of available APNIC address space announced: 85.1

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 161975
Total ARIN prefixes after maximum aggregation: 81413
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162761
Unique aggregates announced from the ARIN address blocks: 75751
ARIN Region origin ASes present in the Internet Routing Table: 15891
ARIN Prefixes per ASN: 10.24
ARIN Region origin ASes announcing only one prefix: 6008
ARIN Region transit ASes present in the Internet Routing Table: 1621
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 44
Number of ARIN addresses announced to Internet: 1073250816
Equivalent to 63 /8s, 248 /16s and 130 /24s
Percentage of available ARIN address space announced: 56.8

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 119353
Total RIPE prefixes after maximum aggregation: 61140
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 123252
Unique aggregates announced from the RIPE address blocks: 79132
RIPE Region origin ASes present in the Internet Routing Table: 17532
RIPE Prefixes per ASN: 7.03
RIPE Region origin ASes announcing only one prefix: 8305
RIPE Region transit ASes present in the Internet Routing Table: 2768
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2513
Number of RIPE addresses announced to Internet: 656208128
Equivalent to 39 /8s, 28 /16s and 241 /24s
Percentage of available RIPE address space announced: 95.4

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52529
Total LACNIC prefixes after maximum aggregation: 9812
LACNIC Deaggregation factor: 5.35
Prefixes being announced from the LACNIC address blocks: 57776
Unique aggregates announced from the LACNIC address blocks: 27416
LACNIC Region origin ASes present in the Internet Routing Table: 2043
LACNIC Prefixes per ASN: 28.28
LACNIC Region origin ASes announcing only one prefix: 557
LACNIC Region transit ASes present in the Internet Routing Table: 387
Average LACNIC Region AS path length visible: 5.5
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 918
Number of LACNIC addresses announced to Internet: 146225664
Equivalent to 8 /8s, 183 /16s and 58 /24s
Percentage of available LACNIC address space announced: 87.2

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11734
Total AfriNIC prefixes after maximum aggregation: 2587
AfriNIC Deaggregation factor: 4.54
Prefixes being announced from the AfriNIC address blocks: 12357
Unique aggregates announced from the AfriNIC address blocks: 4071
AfriNIC Region origin ASes present in the Internet Routing Table: 693
AfriNIC Prefixes per ASN: 17.83
AfriNIC Region origin ASes announcing only one prefix: 207
AfriNIC Region transit ASes present in the Internet Routing Table: 134
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48544768
Equivalent to 2 /8s, 228 /16s and 188 /24s
Percentage of available AfriNIC address space announced: 48.2

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2725 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2156 11550 652 Korea Telecom (KIX)
7545 2116 319 110 TPG Internet Pty Ltd
4755 1796 392 190 TATA Communications formerly
9829 1554 1248 47 BSNL National Internet Backbo
9583 1329 103 542 Sify Limited
9498 1219 309 72 BHARTI Airtel Ltd.
7552 1171 1080 13 Vietel Corporation
24560 1099 382 167 Bharti Airtel Ltd., Telemedia
4808 1039 1945 304 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3038 3688 53 BellSouth.net Inc.
22773 2303 2939 139 Cox Communications, Inc.
18566 2051 379 178 MegaPath Corporation
1785 2048 686 131 PaeTec Communications, Inc.
20115 1682 1658 597 Charter Communications
4323 1646 1098 417 Time Warner Telecom
701 1504 11144 777 MCI Communications Services,
30036 1381 311 576 Mediacom Communications Corp
7018 1320 17778 860 AT&T WorldNet Services
6983 1292 755 578 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1956 544 16 OJSC "Vimpelcom"
34984 1366 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1182 448 891 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 896 99 42 TOV "Bank-Inform"
6849 855 363 39 JSC UKRTELECOM,
8551 795 370 41 Bezeq International
6830 773 2328 426 UPC Distribution Services
12479 679 798 53 Uni2 Autonomous System
35228 548 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3426 1829 94 NET Servicos de Comunicao S.A
10620 2693 436 200 Telmex Colombia S.A.
7303 1736 1161 231 Telecom Argentina Stet-France
18881 1721 908 20 Global Village Telecom
8151 1354 2852 418 UniNet S.A. de C.V.
11830 869 364 15 Instituto Costarricense de El
27947 825 94 91 Telconet S.A
6147 789 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 772 434 61 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 872 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 413 956 9 TEDATA
24835 298 144 9 RAYA Telecom - Egypt
29571 249 21 13 Ci Telecom Autonomous system
3741 247 921 209 The Internet Solution
36992 246 525 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3426 1829 94 NET Servicos de Comunicao S.A
6389 3038 3688 53 BellSouth.net Inc.
17974 2725 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2693 436 200 Telmex Colombia S.A.
22773 2303 2939 139 Cox Communications, Inc.
4766 2156 11550 652 Korea Telecom (KIX)
7545 2116 319 110 TPG Internet Pty Ltd
18566 2051 379 178 MegaPath Corporation
1785 2048 686 131 PaeTec Communications, Inc.
8402 1956 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3038 2985 BellSouth.net Inc.
17974 2725 2637 PT TELEKOMUNIKASI INDONESIA
10620 2693 2493 Telmex Colombia S.A.
22773 2303 2164 Cox Communications, Inc.
7545 2116 2006 TPG Internet Pty Ltd
8402 1956 1940 OJSC "Vimpelcom"
1785 2048 1917 PaeTec Communications, Inc.
18566 2051 1873 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
18881 1721 1701 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-badAS

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/au/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 /8:16 /9:11 /10:31 /11:92 /12:253
/13:475 /14:934 /15:1642 /16:12865 /17:6778 /18:11187
/19:23099 /20:32905 /21:35674 /22:50090 /23:43791 /24:250051
/25:45 /26:30 /27:49 /28:37 /29:29 /30:31
/31:0 /32:0

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2006 2051 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3038 BellSouth.net Inc.
8402 1659 1956 OJSC "Vimpelcom"
22773 1554 2303 Cox Communications, Inc.
30036 1221 1381 Mediacom Communications Corp
11492 1184 1225 Cable One
1785 1088 2048 PaeTec Communications, Inc.
6983 1034 1292 ITC^Deltacom
22561 965 1241 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/au/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:925 2:863 3:3 4:16 5:815 6:21
8:612 12:1881 13:3 14:875 15:11 16:3
17:19 18:19 20:36 23:611 24:1757 27:1714
31:1523 32:45 33:2 34:5 36:101 37:1947
38:912 39:5 40:181 41:3259 42:230 44:14
46:2081 47:10 49:696 50:866 52:12 54:44
55:6 56:4 57:25 58:1101 59:582 60:368
61:1469 62:1234 63:1972 64:4364 65:2329 66:4156
67:2122 68:1095 69:3279 70:909 71:508 72:2017
74:2576 75:324 76:301 77:1208 78:1024 79:670
80:1283 81:1045 82:633 83:756 84:585 85:1255
86:382 87:1035 88:522 89:1569 90:151 91:5722
92:619 93:1615 94:2114 95:1557 96:518 97:351
98:1081 99:41 100:33 101:447 103:3797 105:531
106:146 107:241 108:537 109:2007 110:971 111:1124
112:575 113:803 114:746 115:1025 116:1017 117:807
118:1218 119:1290 120:367 121:751 122:1840 123:1266
124:1351 125:1468 128:609 129:222 130:339 131:661
132:348 133:158 134:297 135:72 136:275 137:265
138:351 139:168 140:171 141:342 142:538 143:405
144:501 145:89 146:545 147:441 148:725 149:367
150:153 151:484 152:414 153:207 154:45 155:518
156:306 157:367 158:284 159:696 160:360 161:457
162:913 163:205 164:623 165:575 166:277 167:637
168:1034 169:122 170:1128 171:185 172:11 173:1625
174:661 175:533 176:1324 177:2541 178:1876 179:311
180:1612 181:884 182:1414 183:472 184:621 185:1109
186:2640 187:1452 188:1964 189:1258 190:7256 192:7005
193:5472 194:4028 195:3383 196:1333 197:1061 198:4731
199:5479 200:5976 201:2528 202:8899 203:8954 204:4465
205:2623 206:2803 207:2739 208:3960 209:3655 210:2979
211:1607 212:2175 213:1995 214:892 215:84 216:5405
217:1727 218:634 219:313 220:1266 221:587 222:327
223:571

End of report
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